CN205046051U - Circulating gaseous heat carrier pyrolysis of coal system - Google Patents
Circulating gaseous heat carrier pyrolysis of coal system Download PDFInfo
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- CN205046051U CN205046051U CN201520822585.5U CN201520822585U CN205046051U CN 205046051 U CN205046051 U CN 205046051U CN 201520822585 U CN201520822585 U CN 201520822585U CN 205046051 U CN205046051 U CN 205046051U
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- pyrolysis
- gas
- coal
- circulating gaseous
- burner
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- 238000000197 pyrolysis Methods 0.000 title claims abstract description 49
- 239000003245 coal Substances 0.000 title claims abstract description 37
- 239000007787 solid Substances 0.000 claims abstract description 15
- 238000011084 recovery Methods 0.000 claims abstract description 13
- 238000000926 separation method Methods 0.000 claims abstract description 13
- 238000006243 chemical reaction Methods 0.000 claims abstract description 10
- 239000002918 waste heat Substances 0.000 claims abstract description 8
- 238000000227 grinding Methods 0.000 claims abstract description 7
- 238000003860 storage Methods 0.000 claims abstract description 7
- 238000000746 purification Methods 0.000 claims abstract description 5
- 239000007789 gas Substances 0.000 abstract description 24
- 238000005265 energy consumption Methods 0.000 abstract description 3
- 238000003912 environmental pollution Methods 0.000 abstract description 3
- 238000005979 thermal decomposition reaction Methods 0.000 abstract 1
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 12
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 11
- 238000000034 method Methods 0.000 description 9
- 239000003546 flue gas Substances 0.000 description 7
- 239000000571 coke Substances 0.000 description 5
- 239000001257 hydrogen Substances 0.000 description 5
- 229910052739 hydrogen Inorganic materials 0.000 description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 5
- 229910001868 water Inorganic materials 0.000 description 5
- 229910002091 carbon monoxide Inorganic materials 0.000 description 4
- 239000000446 fuel Substances 0.000 description 4
- 150000002431 hydrogen Chemical class 0.000 description 4
- 239000000203 mixture Substances 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 description 3
- 239000002737 fuel gas Substances 0.000 description 3
- 239000002245 particle Substances 0.000 description 3
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 2
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000006353 environmental stress Effects 0.000 description 2
- 238000009413 insulation Methods 0.000 description 2
- 239000001301 oxygen Substances 0.000 description 2
- 229910052760 oxygen Inorganic materials 0.000 description 2
- 238000010298 pulverizing process Methods 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 1
- 229910021529 ammonia Inorganic materials 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 239000003034 coal gas Substances 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000005314 correlation function Methods 0.000 description 1
- 238000013467 fragmentation Methods 0.000 description 1
- 238000006062 fragmentation reaction Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000007654 immersion Methods 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000036284 oxygen consumption Effects 0.000 description 1
- 238000010791 quenching Methods 0.000 description 1
- 230000000171 quenching effect Effects 0.000 description 1
- 238000007634 remodeling Methods 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- 238000003911 water pollution Methods 0.000 description 1
Classifications
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/10—Process efficiency
- Y02P20/129—Energy recovery, e.g. by cogeneration, H2recovery or pressure recovery turbines
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- Industrial Gases (AREA)
Abstract
The utility model relates to a circulating gaseous heat carrier pyrolysis of coal system, this pyrolysis system is including the dry coal grinding apparatus, pressure device, heat exchanger, pyrolysis / combustor, gas - solid separator device, burnt oil recovery device, cryogenic separation device and transform / the purification / synthesizer that connect gradually, gas - solid separator device still is connected with the heat exchanger through the semicoke storage tank, burnt oil recovery device still is connected with pyrolysis / combustor, pyrolysis / combustor still is connected with waste heat boiler. Its energy consumption is low, energy conversion is efficient, environmental pollution is little, the thermal decomposition product products that yield a high added value.
Description
Technical field
The utility model belongs to pyrolysis of coal technical field, relates to a kind of circulating gaseous heat-carrier pyrolysis of coal system.
Background technology
In recent years, coal resources sub-prime utilizes the new trend more and more becoming technical development in Coal Energy Source industry, receive general concern, but there are following technical problems all the time in actual use in current coal pyrolysis technology: (1) efficient energy conversion is low; (2) in pyrolysis gas, water vapour content is high, and cause tar recovery stage energy consumption large, power loss is large, and isolation technique difficulty is large; (3) loss of wet quenching Process Energy is large, and easily causes the problem such as water pollutions and semicoke immersion; (4) pyrolyzed components content is few, poor quality, affects greatly pyrolytic process economy.For this reason, need a kind of circulating gaseous heat-carrier pyrolysis of coal system and method for pyrolysis thereof, solve above-mentioned technical problem existing in prior art, can consume low, efficient energy conversion is high, environmental pollution is little, pyrolysis product added value is high.
Utility model content
The purpose of this utility model is to provide a kind of circulating gaseous heat-carrier pyrolysis of coal system and method for pyrolysis thereof, solve above-mentioned technical problem existing in prior art, can consume low, efficient energy conversion is high, environmental pollution is little, pyrolysis product added value is high.
For achieving the above object, the utility model provides a kind of circulating gaseous heat-carrier pyrolysis of coal system on the one hand, comprises the dry coal-grinding apparatus, pressurizing device, interchanger, pyrolysis/burner, gas-solid separating device, tar recovery system, cryogenic separation device and the conversion/purification/synthesizer that connect successively; Gas-solid separating device is also connected with interchanger by semicoke storage tank.
In above scheme preferably, tar recovery system is also connected with pyrolysis/burner.
Can also preferably, pyrolysis/burner is also connected with waste heat boiler.
The utility model on the other hand, a kind of working method of circulating gaseous heat-carrier pyrolysis of coal system is, by coal through super-dry coal-grinding apparatus, carry out predrying, pulverizing grinder and make certain granularity, enter pressurizing device, improve the environmental stress of coal, make it enter interchanger and high-temperature semi-coke carries out heat exchange, as output of products after semicoke temperature reduces, after coal particle is heated, be delivered to pyrolysis/burner, carry out the concurrent heat-dissipating solution of heat exchange with high-temperature flue gas, produce mixture.
In above scheme preferably, mixture enters gas-solid separating device, isolates solid-state high-temperature semi-coke and is delivered to semicoke storage tank.
Can also preferably, the remaining gas of gas solid separation comprises methane, carbon monoxide, hydrogen, gaseous state tar component, water vapour.
Can also preferably, the part of the remaining gas of gas solid separation enters pyrolysis/burner as fuel gas as fuel and oxygenant such as oxygen burns, and enters waste heat boiler carry out UTILIZATION OF VESIDUAL HEAT IN with the flue tail gas after feed coal heat exchange.
Can also be preferably, another part of the remaining gas of gas solid separation carries out product separation as thick gas product, first tar recovery system is entered, isolate tar products, surplus products gas enters cryogenic separation device, isolate methane product, remaining product gas component is carbon monoxide, hydrogen, water vapour, and this gas carries out converting/purify/synthesizer output chemical.
Compared with prior art, the utility model has the following advantages:
The utility model provides a kind of circulating gaseous heat-carrier pyrolysis of coal system, and its tool has the following advantages: (1) effectively utilizes smalls resource, carries out sub-prime utilization to coal resources, improves transformation efficiency; (2) coal gas utilizing pyrolysis to produce is as pyrolysis thermal source; (3) pyrolyzer and fuel burner are unified, and avoid transmission and the insulation of high-temperature flue gas, realize higher heat exchange efficiency; (4) pyrolytic process produces the product such as methane, tar of high heating value; (5) in pyrolysis gas, vapour content is few, and tar recovery stage energy consumption is low.
Accompanying drawing explanation
Fig. 1 is the structural representation of circulating gaseous heat-carrier pyrolysis of coal system of the present utility model.
In figure, 1 is dry coal-grinding apparatus, and 2 is pressurizing device, and 3 is interchanger, and 4 is pyrolysis/burner, and 5 is gas-solid separating device, and 6 is semicoke storage tank, and 7 is waste heat boiler, and 8 is tar recovery system, and 9 is cryogenic separation device, and 10 is conversion/purification/synthesizer.
Embodiment
In order to understand the utility model better, below in conjunction with specific embodiment, the utility model is explained in detail.But, obviously can carry out different modification and remodeling to the utility model and not exceed the wider spirit and scope of the utility model of appended claims.Therefore, following examples have exemplary and hard-core implication.
Embodiment 1:
A kind of circulating gaseous heat-carrier pyrolysis of coal system, as shown in Figure 1, the dry coal-grinding apparatus, pressurizing device, interchanger, pyrolysis/burner, gas-solid separating device, tar recovery system, cryogenic separation device and the conversion/purification/synthesizer that connect successively is comprised; Gas-solid separating device is also connected with interchanger by semicoke storage tank; Tar recovery system is also connected with pyrolysis/burner; Pyrolysis/burner is also connected with waste heat boiler.
Embodiment 2:
A kind of working method of circulating gaseous heat-carrier pyrolysis of coal system, as shown in Figure 1, coal S1 is through super-dry coal-grinding apparatus 1, carry out predrying, pulverizing grinder makes certain granularity, enter pressurizing device 2, improve the environmental stress of coal, enter interchanger 3 and carry out heat exchange with high-temperature semi-coke S7, semicoke temperature exports as product S8 after reducing, pyrolysis/burner 4 is delivered to after coal particle is heated, the concurrent heat-dissipating solution of heat exchange is carried out with high-temperature flue gas, produce mixture S5, mixture enters gas-solid separating device 5, isolate solid-state high-temperature semi-coke S6 and be delivered to semicoke storage tank 6, the remaining gas of gas solid separation mainly comprises methane, carbon monoxide, hydrogen, gaseous state tar component, water vapour etc., a part enters pyrolysis/burner 4 as fuel gas S9 as fuel and burns with oxygenant S15 such as oxygen, enter waste heat boiler 7 with the flue tail gas S11 after feed coal heat exchange and carry out UTILIZATION OF VESIDUAL HEAT IN, another part carries out product separation as thick gas product S10, first tar recovery system 8 is entered, isolate tar products S16, surplus products gas enters cryogenic separation device 9, isolate methane product S14, remaining product gas component is mainly carbon monoxide, hydrogen, water vapour, and this gas carries out converting/purify/synthesizer 10 output chemical S17, can be methyl alcohol, synthetic ammonia etc.
The correlation function of the utility model pyrolyzer/burner 4 can realize at an equipment, the high-temperature flue gas conveying after the unstripped gas burning avoided like this and insulation Related Technical Issues; In pyrolysis/burner 4, feed coal and high-temperature flue gas carry out indirect heat exchange, and feed coal is at tube side, and high-temperature flue gas is at shell side, and feed coal realizes air conveying high-speed motion in pipe, improves heat exchange efficiency, also improves production capacity simultaneously; Whole technical process uses the fuel of system self output as thermal source; Coal carries out pyrolytic reaction after fragmentation, and have coal particle specific surface area large, pyrolysis time is short, and heat exchange efficiency is high, the pyrolysis technological merit such as fully; Coal carries out heat exchange with high-temperature semi-coke before pyrolysis, realizes the cooling of semicoke and the intensification of feed coal, saves a large amount of heats; Coal carries out pyrolytic reaction after the pressurizing, has methane content in product, hydrogen content advantages of higher; In pyrolysis product, a part of gas carries out burning generation high-temperature flue gas as fuel gas, and pyrolysis product temperature is high, does not need temperature-fall period directly to burn, and its temperature of combustion is high, and oxygen consumption is little; Waste heat boiler 7 is used to reclaim heat.
Claims (3)
1. a circulating gaseous heat-carrier pyrolysis of coal system, comprises the dry coal-grinding apparatus (1), pressurizing device (2), interchanger (3), pyrolysis/burner (4), gas-solid separating device (5), tar recovery system (8), cryogenic separation device (9) and the conversion/purification/synthesizer (10) that connect successively; It is characterized in that: gas-solid separating device (5) is also connected with interchanger (3) by semicoke storage tank (6).
2. circulating gaseous heat-carrier pyrolysis of coal system as claimed in claim 1, is characterized in that: tar recovery system (8) is also connected with pyrolysis/burner (4).
3. circulating gaseous heat-carrier pyrolysis of coal system as claimed in claim 2, is characterized in that: pyrolysis/burner (4) is also connected with waste heat boiler (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520822585.5U CN205046051U (en) | 2015-10-22 | 2015-10-22 | Circulating gaseous heat carrier pyrolysis of coal system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520822585.5U CN205046051U (en) | 2015-10-22 | 2015-10-22 | Circulating gaseous heat carrier pyrolysis of coal system |
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| Publication Number | Publication Date |
|---|---|
| CN205046051U true CN205046051U (en) | 2016-02-24 |
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| CN201520822585.5U Active CN205046051U (en) | 2015-10-22 | 2015-10-22 | Circulating gaseous heat carrier pyrolysis of coal system |
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| CN (1) | CN205046051U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105199763A (en) * | 2015-10-22 | 2015-12-30 | 航天长征化学工程股份有限公司 | Circulating gas heat carrier coal pyrolysis system and pyrolysis method thereof |
| CN106995709A (en) * | 2017-05-21 | 2017-08-01 | 杨玉昆 | The method that straw low temperature pyrogenation prepares combustible gas |
| CN113789186A (en) * | 2021-10-25 | 2021-12-14 | 李冶 | A fluidized bed dry distillation device and method thereof |
-
2015
- 2015-10-22 CN CN201520822585.5U patent/CN205046051U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105199763A (en) * | 2015-10-22 | 2015-12-30 | 航天长征化学工程股份有限公司 | Circulating gas heat carrier coal pyrolysis system and pyrolysis method thereof |
| CN106995709A (en) * | 2017-05-21 | 2017-08-01 | 杨玉昆 | The method that straw low temperature pyrogenation prepares combustible gas |
| CN113789186A (en) * | 2021-10-25 | 2021-12-14 | 李冶 | A fluidized bed dry distillation device and method thereof |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |