CN112473323B - Industrial acetone tail gas separation and recovery device - Google Patents
Industrial acetone tail gas separation and recovery device Download PDFInfo
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Abstract
The invention discloses an industrial acetone tail gas separation and recovery device, which belongs to the technical field of industrial waste gas purification and recovery, and comprises a spray tower, an oil-water separation tank, a rectifying tank, a liquid mixing tank, a conveying pipe, a rectifying pipe, an oil return pipe, a water return pipe and a recovery pipe; an oil-water outlet of the spray tower is communicated with an oil-water inlet of the oil-water separation tank through a conveying pipe; the water outlet of the oil-water separation tank is communicated with the water inlet of the rectification tank through a rectification pipe; a water outlet of the rectifying tank is communicated with a water inlet of the liquid mixing tank through a water return pipe; an oil outlet of the oil-water separation tank is communicated with an oil inlet of the liquid mixing tank through an oil return pipe; an oil-water outlet of the liquid mixing tank is communicated with an oil-water inlet of the spray tower through a recovery pipe. The industrial acetone tail gas separation and recovery device can effectively recover acetone in organic waste gas, and absorbs and treats VOC (volatile organic compounds), so that the whole system basically does not generate waste liquid, waste gas and waste residue, the cost is low, and efficient and environment-friendly operation can be realized.
Description
Technical Field
The invention belongs to the technical field of industrial waste gas purification and recovery, and particularly relates to an industrial acetone tail gas separation and recovery device.
Background
Acetone is an organic substance with a molecular formula of C3H6O, also known as dimethyl ketone, and is the simplest saturated ketone. Is a colorless transparent liquid with special pungent smell. The acetone is mainly used as a solvent in the industries of explosives, plastics, rubber, fibers, leather making, grease, paint spraying and the like in industry, and can also be used as an important raw material for synthesizing ketene, acetic anhydride, iodoform, polyisoprene rubber, methyl methacrylate, chloroform, epoxy resin and other substances.
The emission source in a particular industrial waste gas contains a large amount of 80% -90% acetone components, and in addition, other volatile organic compounds such as benzene, toluene, polycyclic aromatic hydrocarbons and the like. The tail gas treatment at the rear end requires resource utilization of a large amount of acetone recovery treatment, and simultaneously needs to treat a small amount of other VOCs contained in the acetone recovery treatment.
At present, a sectional condensation recovery method is mainly adopted for recovering a solvent in waste gas treatment, and the method has the disadvantages of high energy consumption, complex process and high technical requirement on the removal process of VOCs with complex components. And equipment and costs for the treatment of low boiling point volatile components, such as acetone, are dramatically increased. There is a strong need for alternative techniques that are safe and efficient.
The existing treatment method for the VOC impurities mainly comprises chemical destruction and physical adsorption absorption. The combustion method, the catalytic oxidation method and the biological method belong to chemical destruction methods, and can oxidize VOC into carbon dioxide and water to achieve the purpose of purifying waste gas. However, in the actual treatment process, the reaction of the chemical destruction process is insufficient or the energy consumption is too large due to the insufficient concentration and too high flowing speed of the VOC, so that the chemical destruction treatment effect of the VOC is seriously influenced; thus, chemical destruction often requires the treatment of VOCs in combination with physical methods that serve to increase the concentration of VOCs or extend the time of chemical destruction treatment, thereby increasing the purification of VOCs by chemical destruction treatment.
The existing physical absorption methods can be divided into two main types, namely solid absorption methods and liquid absorption methods according to different absorption materials. The solid absorption is mainly activated carbon absorption, but the method has the problems of low adsorption saturation, difficult regeneration, high operation cost and easy damage in the transportation process. The liquid absorption method mainly adopts a high-boiling-point organic solvent as an absorbent, can effectively purify hydrophobic VOC with similar polarity, has the advantages of large absorption capacity, easy regeneration, long service life, simple operation process and the like compared with activated carbon adsorption, and is also a method used in the prior art. For example, patent CN972357254 discloses a device for absorbing triphen organic waste gas by using diesel oil, and waste oil after absorbing waste gas can be burned as fuel; however, the pure organic solvent absorption liquid has the defects of easy combustion, large viscosity and high price, and the large-scale application of the pure organic solvent absorption liquid is seriously limited. In order to overcome the above problems, CN103537171A adopts a method of mixing water and oil phase, and adding surfactant to prepare emulsion or microemulsion as absorption liquid, thereby reducing cost and improving safety, and maintaining good VOC absorption capacity. However, the oil-water mixed absorption liquid shows a stable emulsion state due to containing a large amount of surfactants, a physical oil-water separator cannot effectively separate the oil phase, a chemical reagent needs to be added to perform emulsion breaking, then the oil phase is separated, and further the regeneration of the oil phase is realized, so that the recovery process is complicated, the cost is high, the regeneration is difficult, and secondary pollution is accompanied; also limits the large-scale application of the oil-water mixed absorption liquid.
Disclosure of Invention
The invention aims to provide an industrial acetone tail gas separation and recovery device aiming at the defects, and aims to solve the problems that the prior art is lack of a device which is low in cost, environment-friendly, capable of effectively recovering acetone and absorbing VOC and the like. In order to achieve the purpose, the invention provides the following technical scheme:
an industrial acetone tail gas separation and recovery device comprises a spray tower 1, an oil-water separation tank 2, a rectification tank 3, a liquid mixing tank 4, a conveying pipe 5, a rectification pipe 6, an oil return pipe 7, a water return pipe 8 and a recovery pipe 9; an oil-water outlet of the spray tower 1 is communicated with an oil-water inlet of the oil-water separation tank 2 through a conveying pipe 5; the water outlet of the oil-water separation tank 2 is communicated with the water inlet of the rectification tank 3 through a rectification pipe 6; a water outlet of the rectifying tank 3 is communicated with a water inlet of the liquid mixing tank 4 through a water return pipe 8; an oil outlet of the oil-water separation tank 2 is communicated with an oil inlet of the liquid mixing tank 4 through an oil return pipe 7; an oil-water outlet of the liquid mixing tank 4 is communicated with an oil-water inlet of the spray tower 1 through a recovery pipe 9. According to the structure, the spray tower 1 is used for spraying the oil-water absorption liquid, so that acetone and VOC in the industrial acetone tail gas introduced into the spray tower 1 are absorbed in the oil-water absorption liquid; oil-water absorption liquid for absorbing acetone and VOC is conveyed to the oil-water separation tank 2 from the bottom of the spray tower 1 through a conveying pipe 5; the oil-water separation tank 2 separates the oil-water absorption liquid which absorbs acetone and VOC into an aqueous solution which absorbs acetone and an oil solution which absorbs VOC; the water solution absorbing the acetone is conveyed to a rectifying tank 3 through a rectifying pipe 6; the rectification tank 3 rectifies and recovers the acetone in the acetone-absorbing water solution, and then water flows back to the mixed liquid tank 4 through the water return pipe 8; the oil solution absorbing VOC is conveyed to the liquid mixing tank 4 through an oil return pipe 7; then the oil solution absorbing VOC and water are mixed into oil-water absorption liquid containing VOC, and the oil-water absorption liquid containing VOC flows back to the bottom of the spray tower 1 through a recovery pipe 9 for recycling. The industrial acetone tail gas separation and recovery device provided by the invention has the advantages that VOC (volatile organic compounds) mixed in acetone is absorbed and separated, the acetone is recovered, the cost is low, the acetone regeneration resource utilization efficiency is improved, and the oil-water absorption liquid can be repeatedly utilized.
Further, the oil-water separation tank 2 comprises an outer shell 10 and an inner shell 11; the inner shell 11 is sleeved in the outer shell 10, and a gap is formed between the outer shell 10 and the inner shell 11; a plurality of through holes are formed in the inner shell 11, and a hydrophobic and oleophilic oil film is laid on the inner wall of the inner shell 11; an oil-water inlet and a water outlet of the oil-water separation tank 2 are communicated with the inner part of the inner shell 11; an oil outlet of the oil-water separation tank 2 is communicated with a gap between the outer shell 10 and the inner shell 11; the inner housing 11 is rotatable. According to the structure, oil-water absorption liquid for absorbing acetone and VOC enters the inner shell 11 through the delivery pipe 5, the inner shell 11 rotates at a high speed, oil solution for absorbing VOC enters a gap between the outer shell 10 and the inner shell 11 through the hydrophobic lipophilic film, and then enters the oil return pipe 7 from an oil outlet of the oil-water separation tank 2; the water solution for absorbing acetone is left in the inner shell 11 and cannot penetrate through the hydrophobic lipophilic film, and the water solution for absorbing acetone is led to the rectifying pipe 6 through the water outlet of the oil-water separation tank 2. The oil-water separation tank 2 of the invention utilizes the rotation of the inner shell 11 to generate centrifugal force, and overcomes the defect that the oil-water absorption liquid is difficult to separate in the prior waste gas treatment by means of the performance that a hydrophobic lipophilic film can pass through an oil solution and can not pass through a water solution. The oil-water absorption liquid is demulsified and separated by a porous rotary centrifugal tank through a double-layer structure formed by an outer shell 10 and an inner shell 11 and by using a macromolecular hydrophobic lipophilic film. The acetone which accounts for most of the water-based components is separately recycled and regenerated, so that the utilization efficiency of the regenerated resources is improved. Meanwhile, the treated water-based liquid can return to the liquid mixing tank 4 again to be treated again with the oily components to form a uniform emulsion, and the emulsion is recycled again, so that the whole system basically does not generate waste liquid, waste gas and waste residue, and the efficient environment-friendly operation is realized. The housing 10 is made of steel.
Further, the spray tower 1 is used for spraying oil-water absorption liquid, so that acetone and VOC in the industrial acetone tail gas introduced into the spray tower 1 are absorbed in the oil-water absorption liquid; the hydrophobic lipophilic film is used for separating oil-water absorption liquid for absorbing acetone and VOC into an aqueous solution for absorbing acetone and an oil solution for absorbing VOC.
Further, the oil-water absorption liquid comprises a metastable state emulsion formed by mixing an aqueous phase and an oil phase at a volume ratio of 85-95: 5-15.
Further, the oil phase comprises one or more of engine oil, methyl silicone oil and diethylene glycol dibutyl ether.
Further, the preparation method of the oil-water absorption liquid comprises the following steps: mixing the water phase and the oil phase, and adding a nonionic surfactant with the mass fraction of 4 per mill; the nonionic surfactant comprises long-chain fatty alcohol polyoxyethylene ether or alkylphenol polyoxyethylene ether or a mixture of the long-chain fatty alcohol polyoxyethylene ether and the alkylphenol polyoxyethylene ether; stirring for 60min at the rotating speed of 3000-4000r/min to form uniform and stable emulsion as the oil-water absorption liquid. According to the structure, the oil-water absorption liquid is a metastable-state emulsion formed by an oil phase and a water phase in a specific proportion under the condition of mixing the tail gas of multiple-component VOC, can perform mass transfer exchange with VOC, has a good absorption effect on VOC, is easy to separate, and facilitates the recycling of the absorption liquid; the absorption liquid is used for VOC absorption treatment of waste gas, can save treatment cost, has good safety, and is suitable for large-scale application in VOC absorption treatment.
Further, the preparation method of the hydrophobic lipophilic film comprises the following steps: the method comprises the following steps of (1) taking a layer with the micro-pore size of 50 microns and made of polypropylene or glass fiber as a substrate; preparing silicon rubber in mass ratio: SiO 2: cyclohexane is 1: 0.5: 50, uniformly spraying the suspension on a substrate, and naturally volatilizing and drying to obtain the hydrophobic lipophilic film.
Further, a packing layer is arranged in the spray tower 1; the packing layer divides the interior of the spray tower 1 into an upper layer space 12 and a lower layer space 13; the upper space 12 is provided with a spray header 14; the spray header 14 is connected with a spray pipe; the spray pipe is provided with a spray pump and is inserted at the bottom of the lower layer space 13; the spray header 14 is used for spraying oil-water absorption liquid; the upper layer space 12 is communicated with a waste gas outlet 15; the lower layer space 13 is communicated with a waste gas inlet 16; and an oil-water outlet and an oil-water inlet of the spray tower 1 are communicated with the lower-layer space 13. According to the structure, the industrial acetone tail gas enters the lower layer space 13 through the waste gas inlet 16; the oil-water absorption liquid in the lower layer space 13 is pumped to the spray header 14 by the spray pump through the spray pipe, and the spray header 14 sprays the oil-water absorption liquid. The oil-water absorption liquid wets the packing layer, and the industrial acetone tail gas fully carries out mass transfer exchange in the packing layer, so that the acetone and the VOC are dissolved in the oil-water absorption liquid and then fall into the bottom of the lower-layer space 13. The oil-water absorption liquid absorbing acetone and VOC at the bottom of the lower space 13 is conveyed to the oil-water separation tank 2 through a conveying pipe 5.
Further, a heater 17 is arranged inside the rectifying tank 3; a vacuum pumping port is arranged on the rectifying tank 3; the vacuum pumping port is connected with a vacuum pump. According to the structure, the vacuum pump vacuumizes the rectifying tank 3 through the vacuumizing port; the heater 17 heats the aqueous solution absorbing acetone to distill off acetone, and discharges and collects the acetone from the discharge port of the rectifying tank 3.
Further, a delivery pump and a delivery valve are arranged on the delivery pipe 5; a rectifying valve is arranged on the rectifying pipe 6; the oil return pipe 7 is provided with an oil return valve and an oil return pump; a water return valve is arranged on the water return pipe 8; and a recovery valve and a recovery pump are arranged on the recovery pipe 9. With the above configuration, when the oil-water separation tank 2 performs oil-water separation, the transfer pump pressurizes the oil-water absorption liquid that absorbs acetone and VOC to promote oil-water separation; the delivery valve controls the opening and closing of the delivery pipe 5; when the oil-water separation tank 2 is used for oil-water separation, the rectifying valve closes the rectifying pipe 6 to prevent the oil phase from entering the rectifying tank 3; the oil reflux pump generates suction to promote the oil-water separation of the oil-water separation tank 2; the recovery pump promotes the oil-water absorption liquid containing VOC to flow back to the bottom of the spray tower 1 through the recovery pipe 9 for recycling.
The invention has the beneficial effects that:
the invention discloses an industrial acetone tail gas separation and recovery device, which belongs to the technical field of industrial waste gas purification and recovery, and comprises a spray tower, an oil-water separation tank, a rectifying tank, a liquid mixing tank, a conveying pipe, a rectifying pipe, an oil return pipe, a water return pipe and a recovery pipe; an oil-water outlet of the spray tower is communicated with an oil-water inlet of the oil-water separation tank through a conveying pipe; the water outlet of the oil-water separation tank is communicated with the water inlet of the rectification tank through a rectification pipe; a water outlet of the rectifying tank is communicated with a water inlet of the liquid mixing tank through a water return pipe; an oil outlet of the oil-water separation tank is communicated with an oil inlet of the liquid mixing tank through an oil return pipe; an oil-water outlet of the liquid mixing tank is communicated with an oil-water inlet of the spray tower through a recovery pipe. The industrial acetone tail gas separation and recovery device can effectively recover acetone in organic waste gas, and absorbs and treats VOC (volatile organic compounds), so that the whole system basically does not generate waste liquid, waste gas and waste residue, the cost is low, and efficient and environment-friendly operation can be realized.
Drawings
FIG. 1 is a schematic view of the structure of the present invention;
in the drawings: 1-a spray tower, 2-an oil-water separation tank, 3-a rectification tank, 4-a liquid mixing tank, 5-a delivery pipe, 6-a rectification pipe, 7-an oil return pipe, 8-a water return pipe, 9-a recovery pipe, 10-an outer shell, 11-an inner shell, 12-an upper layer space, 13-a lower layer space, 14-a spray header, 15-a waste gas outlet, 16-a waste gas inlet and 17-a heater.
Detailed Description
The present invention will be described in further detail below with reference to the drawings and the embodiments, but the present invention is not limited to the following examples.
The first embodiment is as follows:
see figure 1. An industrial acetone tail gas separation and recovery device comprises a spray tower 1, an oil-water separation tank 2, a rectification tank 3, a liquid mixing tank 4, a conveying pipe 5, a rectification pipe 6, an oil return pipe 7, a water return pipe 8 and a recovery pipe 9; an oil-water outlet of the spray tower 1 is communicated with an oil-water inlet of the oil-water separation tank 2 through a conveying pipe 5; the water outlet of the oil-water separation tank 2 is communicated with the water inlet of the rectification tank 3 through a rectification pipe 6; a water outlet of the rectifying tank 3 is communicated with a water inlet of the liquid mixing tank 4 through a water return pipe 8; an oil outlet of the oil-water separation tank 2 is communicated with an oil inlet of the liquid mixing tank 4 through an oil return pipe 7; an oil-water outlet of the liquid mixing tank 4 is communicated with an oil-water inlet of the spray tower 1 through a recovery pipe 9. According to the structure, the spray tower 1 is used for spraying the oil-water absorption liquid, so that acetone and VOC in the industrial acetone tail gas introduced into the spray tower 1 are absorbed in the oil-water absorption liquid; oil-water absorption liquid for absorbing acetone and VOC is conveyed to the oil-water separation tank 2 from the bottom of the spray tower 1 through a conveying pipe 5; the oil-water separation tank 2 separates the oil-water absorption liquid which absorbs acetone and VOC into an aqueous solution which absorbs acetone and an oil solution which absorbs VOC; the water solution absorbing the acetone is conveyed to a rectifying tank 3 through a rectifying pipe 6; the rectification tank 3 rectifies and recovers the acetone in the acetone-absorbing water solution, and then water flows back to the mixed liquid tank 4 through the water return pipe 8; the oil solution absorbing VOC is conveyed to the liquid mixing tank 4 through an oil return pipe 7; then the oil solution absorbing VOC and water are mixed into oil-water absorption liquid containing VOC, and the oil-water absorption liquid containing VOC flows back to the bottom of the spray tower 1 through a recovery pipe 9 for recycling. The industrial acetone tail gas separation and recovery device provided by the invention has the advantages that VOC (volatile organic compounds) mixed in acetone is absorbed and separated, the acetone is recovered, the cost is low, the acetone regeneration resource utilization efficiency is improved, and the oil-water absorption liquid can be repeatedly utilized.
Example two:
see figure 1. An industrial acetone tail gas separation and recovery device comprises a spray tower 1, an oil-water separation tank 2, a rectification tank 3, a liquid mixing tank 4, a conveying pipe 5, a rectification pipe 6, an oil return pipe 7, a water return pipe 8 and a recovery pipe 9; an oil-water outlet of the spray tower 1 is communicated with an oil-water inlet of the oil-water separation tank 2 through a conveying pipe 5; the water outlet of the oil-water separation tank 2 is communicated with the water inlet of the rectification tank 3 through a rectification pipe 6; a water outlet of the rectifying tank 3 is communicated with a water inlet of the liquid mixing tank 4 through a water return pipe 8; an oil outlet of the oil-water separation tank 2 is communicated with an oil inlet of the liquid mixing tank 4 through an oil return pipe 7; an oil-water outlet of the liquid mixing tank 4 is communicated with an oil-water inlet of the spray tower 1 through a recovery pipe 9. According to the structure, the spray tower 1 is used for spraying the oil-water absorption liquid, so that acetone and VOC in the industrial acetone tail gas introduced into the spray tower 1 are absorbed in the oil-water absorption liquid; oil-water absorption liquid for absorbing acetone and VOC is conveyed to the oil-water separation tank 2 from the bottom of the spray tower 1 through a conveying pipe 5; the oil-water separation tank 2 separates the oil-water absorption liquid which absorbs acetone and VOC into an aqueous solution which absorbs acetone and an oil solution which absorbs VOC; the water solution absorbing the acetone is conveyed to a rectifying tank 3 through a rectifying pipe 6; the rectification tank 3 rectifies and recovers the acetone in the acetone-absorbing water solution, and then water flows back to the mixed liquid tank 4 through the water return pipe 8; the oil solution absorbing VOC is conveyed to the liquid mixing tank 4 through an oil return pipe 7; then the oil solution absorbing VOC and water are mixed into oil-water absorption liquid containing VOC, and the oil-water absorption liquid containing VOC flows back to the bottom of the spray tower 1 through a recovery pipe 9 for recycling. The industrial acetone tail gas separation and recovery device provided by the invention has the advantages that VOC mixed in acetone is absorbed and separated, and the acetone is recovered, so that the cost is low, the acetone regeneration resource utilization efficiency is improved, and the oil-water absorption liquid can be repeatedly utilized.
The oil-water separation tank 2 comprises an outer shell 10 and an inner shell 11; the inner shell 11 is sleeved in the outer shell 10, and a gap is formed between the outer shell 10 and the inner shell 11; a plurality of through holes are formed in the inner shell 11, and a hydrophobic and oleophilic film is laid on the inner wall of the inner shell 11; an oil-water inlet and a water outlet of the oil-water separation tank 2 are communicated with the inner part of the inner shell 11; an oil outlet of the oil-water separation tank 2 is communicated with a gap between the outer shell 10 and the inner shell 11; the inner housing 11 is rotatable. According to the structure, oil-water absorption liquid for absorbing acetone and VOC enters the inner shell 11 through the delivery pipe 5, the inner shell 11 rotates at a high speed, oil solution for absorbing VOC enters a gap between the outer shell 10 and the inner shell 11 through the hydrophobic lipophilic film, and then enters the oil return pipe 7 from an oil outlet of the oil-water separation tank 2; the water solution for absorbing acetone is left in the inner shell 11 and cannot penetrate through the hydrophobic lipophilic film, and the water solution for absorbing acetone is led to the rectifying pipe 6 through the water outlet of the oil-water separation tank 2. The oil-water separation tank 2 of the invention utilizes the rotation of the inner shell 11 to generate centrifugal force, and overcomes the defect that the oil-water absorption liquid is difficult to separate in the prior waste gas treatment by means of the performance that a hydrophobic lipophilic film can pass through an oil solution and can not pass through a water solution. The oil-water absorption liquid is demulsified and separated by a porous rotary centrifugal tank through a double-layer structure formed by an outer shell 10 and an inner shell 11 and by using a macromolecular hydrophobic lipophilic film. The acetone which accounts for most of the water-based components is separately recycled and regenerated, so that the utilization efficiency of the regenerated resources is improved. Meanwhile, the treated water-based liquid can return to the liquid mixing tank 4 again to be treated again with the oily components to form a uniform emulsion, and the emulsion is recycled again, so that the whole system basically does not generate waste liquid, waste gas and waste residue, and the efficient environment-friendly operation is realized. The housing 10 is made of steel.
Example three:
see figure 1. An industrial acetone tail gas separation and recovery device comprises a spray tower 1, an oil-water separation tank 2, a rectification tank 3, a liquid mixing tank 4, a conveying pipe 5, a rectification pipe 6, an oil return pipe 7, a water return pipe 8 and a recovery pipe 9; an oil-water outlet of the spray tower 1 is communicated with an oil-water inlet of the oil-water separation tank 2 through a conveying pipe 5; the water outlet of the oil-water separation tank 2 is communicated with the water inlet of the rectification tank 3 through a rectification pipe 6; a water outlet of the rectifying tank 3 is communicated with a water inlet of the liquid mixing tank 4 through a water return pipe 8; an oil outlet of the oil-water separation tank 2 is communicated with an oil inlet of the liquid mixing tank 4 through an oil return pipe 7; an oil-water outlet of the liquid mixing tank 4 is communicated with an oil-water inlet of the spray tower 1 through a recovery pipe 9. According to the structure, the spray tower 1 is used for spraying the oil-water absorption liquid, so that acetone and VOC in the industrial acetone tail gas introduced into the spray tower 1 are absorbed in the oil-water absorption liquid; oil-water absorption liquid for absorbing acetone and VOC is conveyed to the oil-water separation tank 2 from the bottom of the spray tower 1 through a conveying pipe 5; the oil-water separation tank 2 separates the oil-water absorption liquid which absorbs acetone and VOC into an aqueous solution which absorbs acetone and an oil solution which absorbs VOC; the water solution absorbing the acetone is conveyed to a rectifying tank 3 through a rectifying pipe 6; the rectification tank 3 rectifies and recovers the acetone in the acetone-absorbing water solution, and then water flows back to the mixed liquid tank 4 through the water return pipe 8; the oil solution absorbing VOC is conveyed to the mixed liquid tank 4 through an oil return pipe 7; then the oil solution absorbing VOC and water are mixed into oil-water absorption liquid containing VOC, and the oil-water absorption liquid containing VOC flows back to the bottom of the spray tower 1 through a recovery pipe 9 for recycling. The industrial acetone tail gas separation and recovery device provided by the invention has the advantages that VOC (volatile organic compounds) mixed in acetone is absorbed and separated, the acetone is recovered, the cost is low, the acetone regeneration resource utilization efficiency is improved, and the oil-water absorption liquid can be repeatedly utilized.
The oil-water separation tank 2 comprises an outer shell 10 and an inner shell 11; the inner shell 11 is sleeved in the outer shell 10, and a gap is formed between the outer shell 10 and the inner shell 11; a plurality of through holes are formed in the inner shell 11, and a hydrophobic and oleophilic film is laid on the inner wall of the inner shell 11; an oil-water inlet and a water outlet of the oil-water separation tank 2 are communicated with the inside of the inner shell 11; an oil outlet of the oil-water separation tank 2 is communicated with a gap between the outer shell 10 and the inner shell 11; the inner housing 11 is rotatable. According to the structure, oil-water absorption liquid for absorbing acetone and VOC enters the inner shell 11 through the delivery pipe 5, the inner shell 11 rotates at a high speed, oil solution for absorbing VOC enters a gap between the outer shell 10 and the inner shell 11 through the hydrophobic lipophilic film, and then enters the oil return pipe 7 from an oil outlet of the oil-water separation tank 2; the water solution for absorbing acetone is left in the inner shell 11 and cannot penetrate through the hydrophobic lipophilic film, and the water solution for absorbing acetone is led to the rectifying pipe 6 through the water outlet of the oil-water separation tank 2. The oil-water separation tank 2 of the invention utilizes the rotation of the inner shell 11 to generate centrifugal force and overcomes the defect that the oil-water absorption liquid is difficult to separate in the prior waste gas treatment by means of the performance that the hydrophobic and oleophilic film can pass through oil solution but can not pass through water solution. The oil-water absorption liquid is demulsified and separated by a porous rotary centrifugal tank through a double-layer structure formed by an outer shell 10 and an inner shell 11 and by using a macromolecular hydrophobic lipophilic film. The method is used for independently recovering and regenerating water-based components, wherein most of acetone is recovered, so that the utilization efficiency of regenerated resources is improved. Meanwhile, the treated water-based liquid can return to the liquid mixing tank 4 again to be treated again with the oily components to form a uniform emulsion, and the emulsion is recycled again, so that the whole system basically does not generate waste liquid, waste gas and waste residue, and the efficient environment-friendly operation is realized. The housing 10 is made of steel.
The spray tower 1 is used for spraying oil-water absorption liquid, so that acetone and VOC in the industrial acetone tail gas introduced into the spray tower 1 are absorbed in the oil-water absorption liquid; the hydrophobic lipophilic film is used for separating oil-water absorption liquid for absorbing acetone and VOC into an aqueous solution for absorbing acetone and an oil solution for absorbing VOC.
The oil-water absorption liquid comprises a metastable state emulsion formed by mixing an aqueous phase and an oil phase at a volume ratio of 85-95: 5-15.
The oil phase comprises one or more of engine oil, methyl silicone oil and diethylene glycol dibutyl ether.
The preparation method of the oil-water absorption liquid comprises the following steps: mixing the water phase and the oil phase, and adding a nonionic surfactant with the mass fraction of 4 per mill; the nonionic surfactant comprises long-chain fatty alcohol polyoxyethylene ether or alkylphenol polyoxyethylene ether or a mixture of the long-chain fatty alcohol polyoxyethylene ether and the alkylphenol polyoxyethylene ether; stirring for 60min at the rotating speed of 3000-4000r/min to form uniform and stable emulsion as the oil-water absorption liquid. According to the structure, under the condition that the oil-water absorption liquid is mixed with the tail gas containing multiple components of VOC, the oil-water absorption liquid is a metastable emulsion formed by an oil phase and a water phase in a specific proportion, can perform mass transfer exchange with the VOC, has a good absorption effect on the VOC, is easy to separate, and facilitates the recycling of the absorption liquid; the absorption liquid is used for VOC absorption treatment of waste gas, can save treatment cost, has good safety, and is suitable for large-scale application in VOC absorption treatment.
The preparation method of the hydrophobic lipophilic film comprises the following steps: the method comprises the following steps of (1) taking a layer with the micro-pore size of 50 microns and made of polypropylene or glass fiber as a substrate; preparing silicon rubber in mass ratio: SiO 2: cyclohexane is 1: 0.5: 50, uniformly spraying the suspension on a substrate, and naturally volatilizing and drying to obtain the hydrophobic lipophilic film.
A packing layer is arranged in the spray tower 1; the packing layer divides the interior of the spray tower 1 into an upper layer space 12 and a lower layer space 13; the upper space 12 is provided with a spray header 14; the spray header 14 is connected with a spray pipe; the spray pipe is provided with a spray pump and is inserted at the bottom of the lower layer space 13; the spray header 14 is used for spraying oil-water absorption liquid; the upper layer space 12 is communicated with an exhaust gas outlet 15; the lower layer space 13 is communicated with a waste gas inlet 16; and an oil-water outlet and an oil-water inlet of the spray tower 1 are communicated with the lower-layer space 13. According to the structure, the industrial acetone tail gas enters the lower layer space 13 through the waste gas inlet 16; the oil-water absorption liquid in the lower layer space 13 is pumped to the spray header 14 by the spray pump through the spray pipe, and the spray header 14 sprays the oil-water absorption liquid. The oil-water absorption liquid wets the packing layer, and the industrial acetone tail gas fully carries out mass transfer exchange in the packing layer, so that the acetone and the VOC are dissolved in the oil-water absorption liquid and then fall into the bottom of the lower-layer space 13. The oil-water absorption liquid absorbing acetone and VOC at the bottom of the lower space 13 is conveyed to the oil-water separation tank 2 through a conveying pipe 5.
A heater 17 is arranged inside the rectifying tank 3; a vacuum pumping port is arranged on the rectifying tank 3; the vacuum pumping port is connected with a vacuum pump. According to the structure, the vacuum pump vacuumizes the rectifying tank 3 through the vacuumizing port; the heater 17 heats the aqueous solution absorbing acetone to distill off acetone, and discharges and collects the acetone from the discharge port of the rectifying tank 3.
A delivery pump and a delivery valve are arranged on the delivery pipe 5; a rectifying valve is arranged on the rectifying pipe 6; the oil return pipe 7 is provided with an oil return valve and an oil return pump; a water return valve is arranged on the water return pipe 8; and a recovery valve and a recovery pump are arranged on the recovery pipe 9. With the above configuration, when the oil-water separation tank 2 performs oil-water separation, the transfer pump pressurizes the oil-water absorption liquid that absorbs acetone and VOC to promote oil-water separation; the delivery valve controls the opening and closing of the delivery pipe 5; when the oil-water separation tank 2 is used for oil-water separation, the rectifying valve closes the rectifying pipe 6 to prevent the oil phase from entering the rectifying tank 3; the oil reflux pump generates suction to promote the oil-water separation of the oil-water separation tank 2; the recovery pump promotes the oil-water absorption liquid containing VOC to flow back to the bottom of the spray tower 1 for recycling through the recovery pipe 9.
The above description is only a preferred embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications of equivalent structures and equivalent processes, which are made by using the contents of the present specification and the accompanying drawings, or directly or indirectly applied to other related technical fields, are included in the scope of the present invention.
Claims (7)
1. The utility model provides an industry acetone tail gas separation recovery unit which characterized in that: comprises a spray tower (1), an oil-water separation tank (2), a rectification tank (3), a liquid mixing tank (4), a delivery pipe (5), a rectification pipe (6), an oil return pipe (7), a water return pipe (8) and a recovery pipe (9); an oil-water outlet of the spray tower (1) is communicated with an oil-water inlet of the oil-water separation tank (2) through a conveying pipe (5); a water outlet of the oil-water separation tank (2) is communicated with a water inlet of the rectification tank (3) through a rectification pipe (6); a water outlet of the rectifying tank (3) is communicated with a water inlet of the liquid mixing tank (4) through a water return pipe (8); an oil outlet of the oil-water separation tank (2) is communicated with an oil inlet of the liquid mixing tank (4) through an oil return pipe (7); an oil-water outlet of the liquid mixing tank (4) is communicated with an oil-water inlet of the spray tower (1) through a recovery pipe (9); the oil-water separation tank (2) comprises an outer shell (10) and an inner shell (11); the inner shell (11) is sleeved in the outer shell (10), and a gap is formed between the outer shell (10) and the inner shell (11); the inner shell (11) is provided with a plurality of through holes, and a hydrophobic and oleophilic film is laid on the inner wall of the inner shell (11); an oil-water inlet and a water outlet of the oil-water separation tank (2) are communicated with the inner part of the inner shell (11); an oil outlet of the oil-water separation tank (2) leads to a gap between the outer shell (10) and the inner shell (11); the inner shell (11) can rotate; the spray tower (1) is used for spraying oil-water absorption liquid, so that acetone and VOC in industrial acetone tail gas introduced into the spray tower (1) are absorbed in the oil-water absorption liquid; the hydrophobic lipophilic film is used for separating oil-water absorption liquid for absorbing acetone and VOC into an aqueous solution for absorbing acetone and an oil solution for absorbing VOC; the preparation method of the hydrophobic lipophilic film comprises the following steps: the method comprises the following steps of (1) taking a layer with the micro-pore size of 50 microns and made of polypropylene or glass fiber as a substrate; preparing silicon rubber in mass ratio: SiO 2: cyclohexane is 1: 0.5: 50, uniformly spraying the suspension on a substrate, and naturally volatilizing and drying to obtain the hydrophobic lipophilic film.
2. The industrial acetone tail gas separation and recovery device according to claim 1, characterized in that: the oil-water absorption liquid comprises a metastable state emulsion formed by mixing an aqueous phase and an oil phase at a volume ratio of 85-95: 5-15.
3. The industrial acetone tail gas separation and recovery device according to claim 2, characterized in that: the oil phase comprises one or more of engine oil, methyl silicone oil and diethylene glycol dibutyl ether.
4. The industrial acetone tail gas separation and recovery device according to claim 3, characterized in that: the preparation method of the oil-water absorption liquid comprises the following steps: mixing the water phase and the oil phase, and adding a nonionic surfactant with the mass fraction of 4 per mill; the nonionic surfactant comprises long-chain fatty alcohol polyoxyethylene ether or alkylphenol polyoxyethylene ether or a mixture of the long-chain fatty alcohol polyoxyethylene ether and the alkylphenol polyoxyethylene ether; stirring for 60min at the rotating speed of 3000-4000r/min to form uniform and stable emulsion as the oil-water absorption liquid.
5. The industrial acetone tail gas separation and recovery device according to claim 1, characterized in that: a packing layer is arranged in the spray tower (1); the packing layer divides the interior of the spray tower (1) into an upper layer space (12) and a lower layer space (13); the upper layer space (12) is provided with a spray header (14); the spray header (14) is connected with a spray pipe; the spray pipe is provided with a spray pump and is inserted at the bottom of the lower layer space (13); the spray header (14) is used for spraying oil-water absorption liquid; the upper layer space (12) is communicated with an exhaust gas outlet (15); the lower layer space (13) is communicated with a waste gas inlet (16); and an oil-water outlet and an oil-water inlet of the spray tower (1) are communicated with the lower-layer space (13).
6. The industrial acetone tail gas separation and recovery device according to claim 5, characterized in that: a heater (17) is arranged in the rectifying tank (3); a vacuum pumping port is arranged on the rectifying tank (3); the vacuum pumping port is connected with a vacuum pump.
7. The industrial acetone tail gas separation and recovery device according to claim 6, characterized in that: a delivery pump and a delivery valve are arranged on the delivery pipe (5); a rectifying valve is arranged on the rectifying pipe (6); an oil return valve and an oil return pump are arranged on the oil return pipe (7); a water return valve is arranged on the water return pipe (8); and a recovery valve and a recovery pump are arranged on the recovery pipe (9).
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Citations (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2008152222A2 (en) * | 2007-05-04 | 2008-12-18 | Degremont | Process and installation for eliminating volatile compounds, in particular volatile organic compounds, in the air emitted by sludge purification and treatment plants. |
| CN102078747A (en) * | 2010-12-27 | 2011-06-01 | 苏州天立蓝环保科技有限公司 | Organic waste gas treating and recycling device and method |
| CN203043804U (en) * | 2012-12-05 | 2013-07-10 | 常州恒威净化设备有限公司 | Organic waste gas recycling and purifying device |
| CN103463938A (en) * | 2013-09-07 | 2013-12-25 | 中北大学 | Device and process method for removing volatile organic compound contained in industrial waste gas |
| CN104208919A (en) * | 2013-05-31 | 2014-12-17 | 青岛华世洁环保科技有限公司 | Oil recovery apparatus for emulsion containing mineral oil |
| CN104524929A (en) * | 2015-01-13 | 2015-04-22 | 天津奥展兴达化工技术有限公司 | Efficient energy-saving purification and recovery process of tail gas containing volatile organic compounds (VOCs) |
| CN106582204A (en) * | 2016-12-05 | 2017-04-26 | 深圳市天得环境科技有限公司 | Waterborne VOCs absorption liquid and preparation method thereof |
| CN106830389A (en) * | 2016-12-19 | 2017-06-13 | 浙江工业大学 | Oil-water-solid three-phase separation device |
| CN107362654A (en) * | 2017-07-20 | 2017-11-21 | 丹阳市助剂化工厂有限公司 | Diisobutyl phthalate, DOTP, VOCS processing methods |
| CN108246112A (en) * | 2018-02-12 | 2018-07-06 | 天津工业大学 | A kind of preparation method of super hydrophilic, underwater superoleophobic polyacrylonitrile-radical water-oil separationg film |
| CN108854464A (en) * | 2018-07-09 | 2018-11-23 | 中物院成都科学技术发展中心 | A kind of absorbing liquid and its separation and recovery method and device for exhaust-gas treatment |
| CN110314495A (en) * | 2019-08-06 | 2019-10-11 | 福建省宇洲环保集团有限公司 | A kind of novel VOCs absorbent and preparation method thereof |
| CN110384955A (en) * | 2019-07-23 | 2019-10-29 | 黑龙江中医药大学 | A kind of use for laboratory oily water separating equipment |
| CN209721649U (en) * | 2018-10-17 | 2019-12-03 | 西南石油大学 | A kind of industrial oily waste water UF membrane oil water separator |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5898101A (en) * | 1981-12-04 | 1983-06-10 | Toyo Eng Corp | Gas-liquid contact apparatus |
| CN101070199B (en) * | 2007-03-22 | 2010-12-15 | 华东理工大学 | Oil-phase enrichment method and apparatus for oil-contained dirt water |
| CN103316507B (en) * | 2013-06-06 | 2014-12-03 | 华南理工大学 | Super-hydrophilic and underwater-super-oleophobic oil-water separation mesh membrane, and preparation method and application thereof |
| FI127351B (en) * | 2014-10-09 | 2018-04-13 | Carbonreuse Finland Oy | Carbon dioxide recovery system and method |
| CN107297125A (en) * | 2017-08-01 | 2017-10-27 | 魏毅培 | A kind of water-based ink prints the alcohol recovering device of baking oven |
| CN210057792U (en) * | 2019-03-26 | 2020-02-14 | 湖北泰盛化工有限公司 | Volatile organic compound processing apparatus |
| CN109912376A (en) * | 2019-03-28 | 2019-06-21 | 河南意达数码科技有限公司 | A kind of the environmental protection recycling separating technology and device of the tail gas containing VOCs |
-
2020
- 2020-11-06 CN CN202011228749.3A patent/CN112473323B/en active Active
Patent Citations (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2008152222A2 (en) * | 2007-05-04 | 2008-12-18 | Degremont | Process and installation for eliminating volatile compounds, in particular volatile organic compounds, in the air emitted by sludge purification and treatment plants. |
| CN102078747A (en) * | 2010-12-27 | 2011-06-01 | 苏州天立蓝环保科技有限公司 | Organic waste gas treating and recycling device and method |
| CN203043804U (en) * | 2012-12-05 | 2013-07-10 | 常州恒威净化设备有限公司 | Organic waste gas recycling and purifying device |
| CN104208919A (en) * | 2013-05-31 | 2014-12-17 | 青岛华世洁环保科技有限公司 | Oil recovery apparatus for emulsion containing mineral oil |
| CN103463938A (en) * | 2013-09-07 | 2013-12-25 | 中北大学 | Device and process method for removing volatile organic compound contained in industrial waste gas |
| CN104524929A (en) * | 2015-01-13 | 2015-04-22 | 天津奥展兴达化工技术有限公司 | Efficient energy-saving purification and recovery process of tail gas containing volatile organic compounds (VOCs) |
| CN106582204A (en) * | 2016-12-05 | 2017-04-26 | 深圳市天得环境科技有限公司 | Waterborne VOCs absorption liquid and preparation method thereof |
| CN106830389A (en) * | 2016-12-19 | 2017-06-13 | 浙江工业大学 | Oil-water-solid three-phase separation device |
| CN107362654A (en) * | 2017-07-20 | 2017-11-21 | 丹阳市助剂化工厂有限公司 | Diisobutyl phthalate, DOTP, VOCS processing methods |
| CN108246112A (en) * | 2018-02-12 | 2018-07-06 | 天津工业大学 | A kind of preparation method of super hydrophilic, underwater superoleophobic polyacrylonitrile-radical water-oil separationg film |
| CN108854464A (en) * | 2018-07-09 | 2018-11-23 | 中物院成都科学技术发展中心 | A kind of absorbing liquid and its separation and recovery method and device for exhaust-gas treatment |
| CN209721649U (en) * | 2018-10-17 | 2019-12-03 | 西南石油大学 | A kind of industrial oily waste water UF membrane oil water separator |
| CN110384955A (en) * | 2019-07-23 | 2019-10-29 | 黑龙江中医药大学 | A kind of use for laboratory oily water separating equipment |
| CN110314495A (en) * | 2019-08-06 | 2019-10-11 | 福建省宇洲环保集团有限公司 | A kind of novel VOCs absorbent and preparation method thereof |
Non-Patent Citations (2)
| Title |
|---|
| 凹版印刷VOCs废气的净化治理联用工艺;许鹏等;《轻工机械》;20090615(第03期);第107-111页 * |
| 油水分离膜的研究进展;吴宗策等;《合成树脂及塑料》;20160525(第03期);第80-83页 * |
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