CN111992147A - Reactor for producing gamma-butyrolactone - Google Patents
Reactor for producing gamma-butyrolactone Download PDFInfo
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- CN111992147A CN111992147A CN202010967638.8A CN202010967638A CN111992147A CN 111992147 A CN111992147 A CN 111992147A CN 202010967638 A CN202010967638 A CN 202010967638A CN 111992147 A CN111992147 A CN 111992147A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J8/00—Chemical or physical processes in general, conducted in the presence of fluids and solid particles; Apparatus for such processes
- B01J8/02—Chemical or physical processes in general, conducted in the presence of fluids and solid particles; Apparatus for such processes with stationary particles, e.g. in fixed beds
- B01J8/06—Chemical or physical processes in general, conducted in the presence of fluids and solid particles; Apparatus for such processes with stationary particles, e.g. in fixed beds in tube reactors; the solid particles being arranged in tubes
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- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D307/00—Heterocyclic compounds containing five-membered rings having one oxygen atom as the only ring hetero atom
- C07D307/02—Heterocyclic compounds containing five-membered rings having one oxygen atom as the only ring hetero atom not condensed with other rings
- C07D307/26—Heterocyclic compounds containing five-membered rings having one oxygen atom as the only ring hetero atom not condensed with other rings having one double bond between ring members or between a ring member and a non-ring member
- C07D307/30—Heterocyclic compounds containing five-membered rings having one oxygen atom as the only ring hetero atom not condensed with other rings having one double bond between ring members or between a ring member and a non-ring member with hetero atoms or with carbon atoms having three bonds to hetero atoms with at the most one bond to halogen, e.g. ester or nitrile radicals, directly attached to ring carbon atoms
- C07D307/32—Oxygen atoms
- C07D307/33—Oxygen atoms in position 2, the oxygen atom being in its keto or unsubstituted enol form
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Abstract
The invention discloses a reactor for producing gamma-butyrolactone, which comprises a cylinder body and tube plates horizontally arranged at the upper end and the lower end in the cylinder body, wherein a plurality of heat exchange tubes are arranged between the two tube plates, the two ends of each heat exchange tube are respectively and vertically communicated with the tube plates, a plurality of baffle plates are uniformly arranged between the tube plates in parallel, and the baffle plates are parallel to the tube plates; a heat conduction oil inlet is formed in the side wall of the lower end of the cylinder body, and a heat conduction oil outlet is formed in the side wall of the upper end of the cylinder body; a reaction raw material inlet penetrates through the side face of the cylinder body, the reaction raw material inlet is supported in the cylinder body through a support, and the support is connected with a support plate arranged at the top end in the cylinder body; the top end of the cylinder body is provided with a tube pass vent; still be provided with first manhole on the lateral wall of barrel upper end, the lower extreme head department that the barrel is connected still is provided with the second manhole. The reactor of gamma-butyrolactone provided by the invention has the advantages of improving the efficiency and yield.
Description
Technical Field
The invention belongs to the technical field of reactor equipment, and particularly relates to a reactor for producing gamma-butyrolactone.
Background
Gamma-butyrolactone (GBL), also known as 4-hydroxybutyrate, is a colourless liquid with an acetone-like odour. The molecular weight is 86.09g/mol and the boiling point is 204 ℃. The gamma-butyrolactone has many excellent properties, has high boiling point, strong dissolving capacity, good reaction performance, good stability, high conductivity and safe use, can be mixed and dissolved with water, and can be dissolved in methanol, ethanol, acetone, diethyl ether, benzene and the like.
Since gamma-butyrolactone has been artificially synthesized, it has been widely used in various fields. It can dissolve various organic and inorganic compounds, and is often used as an organic solvent, an extractant, and an absorbent; the derivative can perform a series of chemical reactions of ring opening and ring substitution, and can prepare a plurality of important downstream products, such as cyclopropylamine for producing ciprofloxacin which is a third generation quinolone antibacterial drug, and can also be used as important raw materials of drugs such as Naokang, aminobutyric acid, vitamin B1 and the like; it has stable electrolysis and solubility, and thus can be used as a special solvent with high conductivity as an electrolyte for lithium batteries and electric appliances.
At present, in China, gamma-butyrolactone is mainly used for producing pyrrolidone, and a small part of gamma-butyrolactone is used for producing medical intermediates, electrolyte solutions, solvents and pesticides. With the rapid development of the domestic fine synthesis industry and the pharmaceutical industry, the demand of gamma-butyrolactone is increasing continuously. Therefore, in recent years, gamma-butyrolactone has become an important fine chemical product, and its production process has become a research hotspot and is receiving more and more attention.
Disclosure of Invention
The invention aims to provide a reactor for producing gamma-butyrolactone, which solves the problems of low efficiency and low yield of the reactor in the prior art.
The invention provides a reactor for producing gamma-butyrolactone, which comprises a cylinder and tube plates horizontally arranged at the upper end and the lower end in the cylinder, wherein a plurality of heat exchange tubes are arranged between the two tube plates, the two ends of each heat exchange tube are respectively and vertically communicated with the tube plates, a plurality of baffle plates are uniformly arranged between the tube plates in parallel, and the baffle plates are parallel to the tube plates; a heat conduction oil inlet is formed in the side wall of the lower end of the cylinder body, and a heat conduction oil outlet is formed in the side wall of the upper end of the cylinder body; a reaction raw material inlet penetrates through the side face of the cylinder body, the reaction raw material inlet is supported in the cylinder body through a support, and the support is connected with a support plate arranged at the top end in the cylinder body; the top end of the cylinder body is provided with a tube pass vent; still be provided with first manhole on the lateral wall of barrel upper end, the lower extreme head department that the barrel is connected still is provided with the second manhole.
Furthermore, the tube plate is a grid plate, the upper end of the grid plate is also provided with a wire mesh, and the lower end of the grid plate is also provided with a support beam; the support beam is fixedly connected with the support lug through a nut and a bolt, and the nut is matched with a flat washer arranged below the nut for use.
Further, the support is of a bent pipeline structure, and the reaction raw material inlet pipeline is not hermetically connected with the support.
Furthermore, the supporting plate is of a hollow cylinder structure, and the central axis of the supporting plate is overlapped with that of the tube side vent.
Furthermore, the baffle plate is fixed through a pull rod, the pull rod is a long rod with threads at two ends, and a distance pipe is sleeved outside the pull rod to keep the distance between the plates.
Further, the pull rod is fixedly connected with the baffle plate through a nut.
Further, an ear seat is further arranged at the upper end of the outer side of the cylinder body, and a grounding plate is arranged on the ear seat.
Further, the upper end head that the barrel is connected is provided with a plurality of remote thermometer mouth, pressure gauge mouth and a plurality of lug.
Furthermore, a shell pass emptying port on the side wall of the upper end of the cylinder body, which is opposite to the heat conduction oil outlet, is also arranged on the side wall of the lower end of the cylinder body, which is opposite to the heat conduction oil inlet, and a reaction product outlet is also arranged on the outer side of the bottom end of the cylinder body.
Further, the heat exchange tubes are filled with a catalyst.
Has the advantages that:
1. the invention relates to a reactor for producing gamma-butyrolactone, wherein a reaction raw material inlet penetrates through the side surface of a cylinder body, the reaction raw material inlet is supported in the cylinder body through a support, and the support is connected with a support plate arranged at the top end in the cylinder body; the top end of the cylinder body is provided with a tube pass vent; a first manhole is further arranged on the side wall of the upper end of the cylinder body, and a second manhole is further arranged at the lower end socket connected with the cylinder body; not only can improve production yield and efficiency, but also can conveniently overhaul.
2. The tube plate is a grid plate, a wire mesh is further arranged at the upper end of the grid plate, and a support beam is further arranged at the lower end of the grid plate; the utility model discloses a pipe, including barrel lower extreme, supporting beam, bolt, nut and plain washer, the barrel lower extreme is inside to be provided with the journal stirrup, supporting beam with the journal stirrup passes through nut and bolt fixed connection, the nut uses with the plain washer cooperation that sets up in the nut below, has given the concrete structure of tube sheet, and the tube sheet is the grid board, and the upper end silk screen in addition, and the grid of double-deck grid structure and upper silk screen is littleer, and this kind of structure can make the reaction fully take place, better improvement reaction efficiency.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is an enlarged schematic view of the structure at A in FIG. 1;
fig. 3 is a top view of fig. 1.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
As shown in attached figures 1-3, the invention provides a reactor for producing gamma-butyrolactone, which comprises a cylinder 1 and tube plates 2 horizontally arranged at the upper end and the lower end in the cylinder 1, wherein 1 heat exchange tube 3 is arranged between the two tube plates 2, the two ends of the heat exchange tube 3 are respectively and vertically communicated with the tube plates 2, 4 baffle plates 4 are uniformly arranged between the tube plates 2 in parallel, and the baffle plates 4 are parallel to the tube plates 2; a heat conduction oil inlet 5 is formed in the side wall of the lower end of the cylinder 1, and a heat conduction oil outlet 6 is formed in the side wall of the upper end of the cylinder; a reaction raw material inlet 7 penetrates through the side surface of the cylinder 1, the reaction raw material inlet 7 is supported inside the cylinder 1 through a support 8, and the support 8 is connected with a support plate 9 arranged at the top end inside the cylinder 1; the top end of the cylinder body 1 is provided with a tube pass vent 10; still be provided with first manhole 11 on the lateral wall of barrel 1 upper end, the lower extreme head 100 department that barrel 1 connects still is provided with second manhole 12.
In a further embodiment, the tube plate 2 is a grid plate, the upper end of the grid plate is further provided with a wire mesh 21, and the lower end of the grid plate is further provided with a support beam 22; a support lug 23 is arranged in the lower end of the cylinder 1, the support beam 22 is fixedly connected with the support lug 23 through a nut 24 and a bolt 25, and the nut 24 is matched with a flat washer 26 arranged below the nut 24 for use.
The support 8 is of a bent pipeline structure, and the pipeline of the reaction raw material inlet 7 is not hermetically connected with the support 8; the supporting plate 9 is of a hollow cylinder structure, and the central axes of the supporting plate 9 and the tube side vent 10 are overlapped; the baffle plate 4 is fixed through a pull rod 41, the pull rod 41 is a long rod with threads at two ends, and a distance tube 42 is sleeved outside the pull rod 41 to keep the distance between the plate pieces; the pull rod 41 is fixedly connected with the baffle plate 4 through a nut 24; an ear seat 13 is further arranged at the upper end of the outer side of the cylinder body 1, and a grounding plate 14 is arranged on the ear seat 13; an upper end socket 15 connected with the barrel 1 is provided with 4 remote temperature gauge ports 16, a pressure gauge port 17 and 2 lifting lugs 18; the side wall of the upper end of the cylinder body 1 is also provided with a shell pass emptying port 19 which is arranged at the side opposite to the heat conduction oil outlet 6, the side wall of the lower end of the cylinder body is also provided with a shell pass emptying port 20 which is arranged at the side opposite to the heat conduction oil inlet 5, and the outer side of the bottom end of the cylinder body 1 is also provided with a reaction product outlet 21; the heat exchange tubes 3 are filled with a catalyst.
The process for producing gamma-butyrolactone according to the invention is as follows:
heat conducting oil enters from a heat conducting oil inlet 5, 1, 4-butanediol enters from a reaction raw material inlet 7 and flows into a lower heat exchange tube 3 through the joint of a pipeline of the reaction raw material inlet 7 and a support 8, the 1, 4-butanediol is dehydrogenated to generate gamma-butyrolactone under the catalytic action of a catalyst in the heat exchange tube 3, and a product flows out from a reaction product outlet 21 to obtain the gamma-butyrolactone.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.
The present invention is not limited to the above description of the embodiments, and those skilled in the art should, in light of the present disclosure, appreciate that many changes and modifications can be made without departing from the spirit and scope of the invention.
Claims (10)
1. A reactor for producing gamma-butyrolactone, characterized in that: the heat exchanger comprises a cylinder body and tube plates horizontally arranged at the upper end and the lower end in the cylinder body, wherein a plurality of heat exchange tubes are arranged between the two tube plates, the two ends of each heat exchange tube are respectively and vertically communicated with the tube plates, a plurality of baffle plates are uniformly arranged between the tube plates in parallel, and the baffle plates are parallel to the tube plates; a heat conduction oil inlet is formed in the side wall of the lower end of the cylinder body, and a heat conduction oil outlet is formed in the side wall of the upper end of the cylinder body; a reaction raw material inlet penetrates through the side face of the cylinder body, the reaction raw material inlet is supported in the cylinder body through a support, and the support is connected with a support plate arranged at the top end in the cylinder body; the top end of the cylinder body is provided with a tube pass vent; still be provided with first manhole on the lateral wall of barrel upper end, the lower extreme head department that the barrel is connected still is provided with the second manhole.
2. A reactor for producing γ -butyrolactone according to claim 1, characterized in that: the tube plate is a grid plate, a silk screen is further arranged at the upper end of the grid plate, and a support beam is further arranged at the lower end of the grid plate; the support beam is fixedly connected with the support lug through a nut and a bolt, and the nut is matched with a flat washer arranged below the nut for use.
3. A reactor for producing γ -butyrolactone according to claim 1, characterized in that: the support is of a bent pipeline structure, and the reaction raw material inlet pipeline is connected with the support in an unsealed mode.
4. A reactor for producing γ -butyrolactone according to claim 1, characterized in that: the supporting plate is of a hollow cylinder structure, and the central axis of the supporting plate is overlapped with that of the tube side vent.
5. A reactor for producing γ -butyrolactone according to claim 1, characterized in that: the baffle plate is fixed through a pull rod, the pull rod is a long rod with threads at two ends, and a distance pipe is sleeved outside the pull rod to keep the distance between the plates.
6. The reactor for producing γ -butyrolactone according to claim 5, wherein: the pull rod is fixedly connected with the baffle plate through a nut.
7. A reactor for producing γ -butyrolactone according to claim 1, characterized in that: the upper end of the outer side of the cylinder body is also provided with an ear seat, and the ear seat is provided with a grounding plate.
8. A reactor for producing γ -butyrolactone according to claim 1, characterized in that: the upper end head that the barrel is connected is provided with a plurality of remote thermometer mouth, pressure gauge mouth and a plurality of lug.
9. A reactor for producing γ -butyrolactone according to claim 1, characterized in that: the side wall of the upper end of the cylinder body is also provided with a shell pass emptying port on the side opposite to the heat conduction oil outlet, the side wall of the lower end of the cylinder body is also provided with a shell pass emptying port on the side opposite to the heat conduction oil inlet, and the outer side of the bottom end of the cylinder body is also provided with a reaction product outlet.
10. A reactor for producing γ -butyrolactone according to claim 1, characterized in that: the heat exchange tubes are filled with a catalyst.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010967638.8A CN111992147A (en) | 2020-09-15 | 2020-09-15 | Reactor for producing gamma-butyrolactone |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010967638.8A CN111992147A (en) | 2020-09-15 | 2020-09-15 | Reactor for producing gamma-butyrolactone |
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| Publication Number | Publication Date |
|---|---|
| CN111992147A true CN111992147A (en) | 2020-11-27 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010967638.8A Pending CN111992147A (en) | 2020-09-15 | 2020-09-15 | Reactor for producing gamma-butyrolactone |
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| CN (1) | CN111992147A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114505018A (en) * | 2022-03-30 | 2022-05-17 | 山东彩客东奥化学有限公司 | Reaction production device for producing gamma-butyrolactone through BDO dehydrogenation |
-
2020
- 2020-09-15 CN CN202010967638.8A patent/CN111992147A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114505018A (en) * | 2022-03-30 | 2022-05-17 | 山东彩客东奥化学有限公司 | Reaction production device for producing gamma-butyrolactone through BDO dehydrogenation |
| CN114505018B (en) * | 2022-03-30 | 2023-02-28 | 山东彩客东奥化学有限公司 | BDO dehydrogenation production gamma-butyrolactone reaction apparatus for producing |
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