CN102659102A - Technology and device for preparing industrial carbon monoxide with water gas - Google Patents
Technology and device for preparing industrial carbon monoxide with water gas Download PDFInfo
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- CN102659102A CN102659102A CN2012101647325A CN201210164732A CN102659102A CN 102659102 A CN102659102 A CN 102659102A CN 2012101647325 A CN2012101647325 A CN 2012101647325A CN 201210164732 A CN201210164732 A CN 201210164732A CN 102659102 A CN102659102 A CN 102659102A
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Abstract
The invention relates to a technology and a device for preparing industrial carbon monoxide with water gas. After heat exchange and separation of the water gas as well as three times of heat utilization, part of the water gas without heat exchange is reheated to the organic sulfur hydrolysis activity temperature, and then enters an organic sulfur hydrolysis reactor; after being exchanged heat with desalted water and circulating water, the water gas converted by the organic sulfur removes the hydrogen sulfide and carbon dioxide through NHD gas purification technology; the purified gas changes heat with the condensate separated from the water gas through condensation to be heated and then enters an organic sulfur reactor II; microcrystalline organic sulfur in the purified gas is converted into inorganic sulfur; and the converted gas is cooled through circulation water and then fine desulfuration reaction is carried out so as to produce high-quality refined gas. According to the technology, the defects of the traditional technology are overcome, raw material is saved, energy consumption is lowered, and pollutant is not discharged in producing process, so that the technology is a clean production technology route which is in accordance with the national condition, and is economical and reasonable, and advanced.
Description
Technical field
The present invention relates to a kind of technology and device for preparing carbon monoxide, belong to the chemical technique technical field.
Background technology
In order to adapt to the needs of fine chemicals development, for carbonylic synthesis technologies such as acetic acid, aceticanhydride provide the fine feed gas containing carbon monoxide, be source of the gas with water-gas, researched and developed the technology that a kind of water-gas prepares industrial carbon monoxide.
Existing C O preparation technology has two kinds, and a kind of is to be raw material with the coke, with CO
2And O
2Gas mixture adopts intermittent type fixed bed gasification technology to produce CO as vaporized chemical, and its shortcoming is that the prices of raw and semifnished materials are high, and the production cycle is long, and environmental protection pressure is big; Another kind is traditional water-gas-pressure swing adsorption technique, and plant energy consumption is high, excessive H
2Can't make full use of with portion C O, energy loss is big.
Summary of the invention
The purpose of this invention is to provide technology and device that a kind of water-gas prepares industrial carbon monoxide.
The technical scheme that the present invention takes is:
A kind of water-gas prepares the device of industrial carbon monoxide; Comprise the waste heat boiler that links to each other with the coal water slurry gasification device, waste heat boiler connects a separator, and the upper end of a separator links to each other with the solvent interchanger; The lower end links to each other with a de-salted water interchanger; One time the de-salted water interchanger connects second separator, and second separator connects vapor-water heat exchanger, and vapor-water heat exchanger connects organosulfur hydrolysis reactor I; Tempreture organic sulphur hydrolysis reactor drum I links to each other with the NHD gas purifier through secondary de-salted water interchanger, recirculated water cooler and three separators; The NHD gas purifier connects organic reaction of Salmon-Saxl device II through the condensed heat transfer fluid device, and organosulfur reactor drum II connects smart desulphurization reactor through the recirculated water cooler, and smart desulphurization reactor connects pressure-swing absorption apparatus.
Medium in the described waste heat boiler communicates with medium in de-salted water interchanger through water pump and deoxygenator one tunnel; One the tunnel with secondary de-salted water interchanger in medium communicate; Medium in the solvent interchanger communicates with the isolating solvent of NHD gas purifier, and the medium in the vapor-water heat exchanger links to each other with the coal water slurry gasification device.
A kind of water-gas prepares the technology of industrial carbon monoxide, comprises that step is following:
(1) water-gas that is made by the coal water slurry gasification device reclaims heat through waste heat boiler; And the WGR in the control water-gas reaches between 0.3 ~ 0.5; Water-gas is through gas-liquid separation then; Carry out heat exchange with the solvent in the NHD gas sweetening, again with the de-salted water heat exchange, gas gas-liquid separation once more after the heat exchange, with the water-gas heat exchange;
(2) water-gas is got into tempreture organic sulphur hydrolysis reactor drum I by re-heat to 150 ~ 170 ℃ after the heat exchange, and COS+H takes place
2O=H
2S+CO
2Reaction, organosulfur is converted into inorganic sulfur, the water-gas after organosulfur transforms respectively with de-salted water and recirculated water heat exchange after, pass through the NHD gas purifying technique and remove hydrogen sulfide and carbonic acid gas;
(3) behind isolating condensed heat transfer fluid after the condensation, be warming up to 50 ~ 70 ℃ of entering organosulfur reactor drum II through gas behind the NHD desulfurization decarbonization purification and water-gas; Further the organosulfur with trace in the purified gas changes into inorganic sulfur; Gas after the conversion through the recirculated water cooling after, under 30 ~ 45 ℃ of conditions with catalyzer, carry out smart desulphurization reaction H with a certain amount of oxygen
2S+O
2=S+H
2O, the H in the gas
2S is fixed after changing into elemental sulfur, thereby makes high-quality fine gas, wherein CO+H
2>=95%, H
2S+COS≤0.1ppm;
(4) fine gas that makes is through pressure-swing absorption apparatus separation of C O and H
2, can make purity and be higher than 98.5% industrial carbon monoxide product gas, obtain high-purity hydrogen simultaneously.
Apparatus of the present invention cycle of operation is long, and load is high, and energy consumption is low, is fit to scale operation; Water-gas CO content is under 42.5 ~ 50% situation, and the CO content after making with extra care reaches more than 98.5%.CO in the water-gas is used fully, isolating high-purity H
2Be used for methyl alcohol or Ammonia Production, effectively being so incensed that does not have any loss to make full use of.
Technology of the present invention has overcome the shortcoming of traditional technology, not only saves starting material, reduces energy consumption, and the production process non-pollutant discharge, be tally with the national condition, the process for cleanly preparing route of economical rationality and advanced technology.
Beneficial effect of the present invention is:
(1) the CO purity that makes reaches more than 98.5%, can satisfy the needs of various carbonylic synthesis technologies;
Utilize the gas phase heat of water-gas (2) five times, under the situation of no external heat source, gas has been carried out pre-treatment, sufficiently and reasonably utilized the gas phase thermal source, byproduct steam has been created income simultaneously;
(3) the novelty land productivity provides hydrolysis reaction activation energy with water-gas re-heat water-gas, has saved mass energy consumption;
(4) utilize byproduct steam and the water-gas heat regeneration thermal source as the NHD clean unit, effectively reduce product consumption, cost reduces greatly.
Description of drawings
Fig. 1 is apparatus of the present invention figure;
Wherein, 1. coal water slurry gasification device, 2. waste heat boiler, 3. a separator, 4. solvent interchanger, 5. a de-salted water interchanger; 6. second separator, 7. vapor-water heat exchanger, 8. tempreture organic sulphur hydrolysis reactor drum I, 9. secondary de-salted water interchanger, 10. recirculated water cooler; 11. three separators, 12.NHD gas purifier, 13. condensed heat transfer fluid devices, 14. organosulfur reactor drum II, 15. recirculated water coolers; 16. smart desulphurization reactor, 17. pressure-swing absorption apparatuss, 18. water pumps, 19. deoxygenators, 20. stripping towers.
Embodiment
Further specify the present invention below in conjunction with embodiment and embodiment.
A kind of water-gas prepares the device of industrial carbon monoxide; Comprise the waste heat boiler 2 that links to each other with coal water slurry gasification device 1, waste heat boiler 2 connects a separator 3, and the upper end of a separator 3 links to each other with solvent interchanger 4; The lower end links to each other with a de-salted water interchanger 5; One time de-salted water interchanger 5 connects second separator 6, and second separator 6 connects vapor-water heat exchanger 7, and vapor-water heat exchanger 7 connects organosulfur hydrolysis reactor I8; Tempreture organic sulphur hydrolysis reactor drum I8 links to each other with NHD gas purifier 12 through secondary de-salted water interchanger 9, recirculated water cooler 10 and three separators 11; NHD gas purifier 12 connects organic reaction of Salmon-Saxl device II14 through condensed heat transfer fluid device 13, and organosulfur reactor drum II14 connects smart desulphurization reactor 16 through recirculated water cooler 15, and smart desulphurization reactor 16 connects pressure-swing absorption apparatus.
Medium in the described waste heat boiler 2 communicates with medium in de-salted water interchanger 9 through water pump 18 and deoxygenator 19 one tunnel; One the tunnel with secondary de-salted water interchanger 9 in medium communicate; Medium in the solvent interchanger 4 communicates with NHD gas purifier 12 isolating solvents, and the medium in the vapor-water heat exchanger 7 links to each other with coal water slurry gasification device 1.
A kind of water-gas prepares the technology of industrial carbon monoxide, comprises that step is following:
(1) water-gas that is made by the coal water slurry gasification device reclaims heat through waste heat boiler; And the WGR in the control water-gas reaches 0.3; Water-gas is through gas-liquid separation then; Carry out heat exchange with the solvent in the NHD gas sweetening, again with the de-salted water heat exchange, gas gas-liquid separation once more after the heat exchange, with the water-gas heat exchange;
(2) water-gas is got into tempreture organic sulphur hydrolysis reactor drum I by re-heat to 150 ℃ after the heat exchange, and COS+H takes place
2O=H
2S+CO
2Reaction, organosulfur is converted into inorganic sulfur, the water-gas after organosulfur transforms respectively with de-salted water and recirculated water heat exchange after, pass through the NHD gas purifying technique and remove hydrogen sulfide and carbonic acid gas;
(3) behind isolating condensed heat transfer fluid after the condensation, be warming up to 50 ℃ of entering organosulfur reactor drum II through gas behind the NHD desulfurization decarbonization purification and water-gas; Further the organosulfur with trace in the purified gas changes into inorganic sulfur; Gas after the conversion through the recirculated water cooling after, under 30 ℃ of conditions with catalyzer, carry out smart desulphurization reaction H with a certain amount of oxygen
2S+O
2=S+H
2O, the H in the gas
2S is fixed after changing into elemental sulfur, thereby makes high-quality fine gas, wherein CO+H
2>=95%, H
2S+COS≤0.1ppm;
(4) fine gas that makes is through pressure-swing absorption apparatus separation of C O and H
2, can make purity and be higher than 98.5% industrial carbon monoxide product gas, obtain high-purity hydrogen simultaneously.
A kind of water-gas prepares the technology of industrial carbon monoxide, comprises that step is following:
(1) water-gas that is made by the coal water slurry gasification device reclaims heat through waste heat boiler; And the WGR in the control water-gas reaches between 0.5; Water-gas is through gas-liquid separation then; Carry out heat exchange with the solvent in the NHD gas sweetening, again with the de-salted water heat exchange, gas gas-liquid separation once more after the heat exchange, with the water-gas heat exchange;
(2) water-gas is got into tempreture organic sulphur hydrolysis reactor drum I by re-heat to 170 ℃ after the heat exchange, and COS+H takes place
2O=H
2S+CO
2Reaction, organosulfur is converted into inorganic sulfur, the water-gas after organosulfur transforms respectively with de-salted water and recirculated water heat exchange after, pass through the NHD gas purifying technique and remove hydrogen sulfide and carbonic acid gas;
(3) behind isolating condensed heat transfer fluid after the condensation, be warming up to 70 ℃ of entering organosulfur reactor drum II through gas behind the NHD desulfurization decarbonization purification and water-gas; Further the organosulfur with trace in the purified gas changes into inorganic sulfur; Gas after the conversion through the recirculated water cooling after, under 45 ℃ of conditions with catalyzer, carry out smart desulphurization reaction H with a certain amount of oxygen
2S+O
2=S+H
2O, the H in the gas
2S is fixed after changing into elemental sulfur, thereby makes high-quality fine gas, wherein CO+H
2>=95%, H
2S+COS≤0.1ppm;
(4) fine gas that makes is through pressure-swing absorption apparatus separation of C O and H
2, can make purity and be higher than 98.5% industrial carbon monoxide product gas, obtain high-purity hydrogen simultaneously.
Claims (3)
1. a water-gas prepares the device of industrial carbon monoxide, it is characterized in that, comprises the waste heat boiler that links to each other with the coal water slurry gasification device; Waste heat boiler connects a separator; The upper end of a separator links to each other with the solvent interchanger, and the lower end links to each other with a de-salted water interchanger, and one time the de-salted water interchanger connects second separator; Second separator connects vapor-water heat exchanger; Vapor-water heat exchanger connects organosulfur hydrolysis reactor I, and tempreture organic sulphur hydrolysis reactor drum I links to each other with the NHD gas purifier through secondary de-salted water interchanger, recirculated water cooler and three separators, and the NHD gas purifier connects organic reaction of Salmon-Saxl device II through the condensed heat transfer fluid device; Organosulfur reactor drum II connects smart desulphurization reactor through the recirculated water cooler, and smart desulphurization reactor connects pressure-swing absorption apparatus.
2. a kind of water-gas according to claim 1 prepares the device of industrial carbon monoxide; It is characterized in that; Medium in the described waste heat boiler communicates with medium in de-salted water interchanger through water pump and deoxygenator one tunnel; One the tunnel with secondary de-salted water interchanger in medium communicate, the medium in the solvent interchanger communicates with the isolating solvent of NHD gas purifier, the medium in the vapor-water heat exchanger links to each other with the coal water slurry gasification device.
3. a water-gas prepares the technology of industrial carbon monoxide, it is characterized in that, comprises that step is following:
(1) water-gas that is made by the coal water slurry gasification device reclaims heat through waste heat boiler; And the WGR in the control water-gas reaches between 0.3 ~ 0.5; Water-gas is through gas-liquid separation then; Carry out heat exchange with the solvent in the NHD gas sweetening, again with the de-salted water heat exchange, gas gas-liquid separation once more after the heat exchange, with the water-gas heat exchange;
(2) water-gas is got into tempreture organic sulphur hydrolysis reactor drum I by re-heat to 150 ~ 170 ℃ after the heat exchange, and COS+H takes place
2O=H
2S+CO
2Reaction, organosulfur is converted into inorganic sulfur, the water-gas after organosulfur transforms respectively with de-salted water and recirculated water heat exchange after, pass through the NHD gas purifying technique and remove hydrogen sulfide and carbonic acid gas;
(3) behind isolating condensed heat transfer fluid after the condensation, be warming up to 50 ~ 70 ℃ of entering organosulfur reactor drum II through gas behind the NHD desulfurization decarbonization purification and water-gas; Further the organosulfur with trace in the purified gas changes into inorganic sulfur; Gas after the conversion through the recirculated water cooling after, under 30 ~ 45 ℃ of conditions with catalyzer, carry out smart desulphurization reaction H with a certain amount of oxygen
2S+O
2=S+H
2O, the H in the gas
2S is fixed after changing into elemental sulfur, thereby makes high-quality fine gas, wherein CO+H
2>=95%, H
2S+COS≤0.1ppm;
(4) fine gas that makes is through pressure-swing absorption apparatus separation of C O and H
2, can make purity and be higher than 98.5% industrial carbon monoxide product gas, obtain high-purity hydrogen simultaneously.
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| CN201210164732.5A CN102659102B (en) | 2012-05-24 | 2012-05-24 | Technology and device for preparing industrial carbon monoxide with water gas |
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|---|---|---|---|
| CN201210164732.5A CN102659102B (en) | 2012-05-24 | 2012-05-24 | Technology and device for preparing industrial carbon monoxide with water gas |
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| CN102659102B CN102659102B (en) | 2014-07-30 |
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Cited By (3)
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| CN105419882A (en) * | 2016-01-13 | 2016-03-23 | 兖矿集团有限公司 | Water gas desulfurization method and system thereof |
| CN105567340A (en) * | 2014-10-17 | 2016-05-11 | 中国石油化工股份有限公司 | NHD purification system for IGCC power station |
| CN110331008A (en) * | 2019-05-22 | 2019-10-15 | 湖南衡钢百达先锋能源科技有限公司 | A kind of gas desulfurizer and method |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105567340A (en) * | 2014-10-17 | 2016-05-11 | 中国石油化工股份有限公司 | NHD purification system for IGCC power station |
| CN105419882A (en) * | 2016-01-13 | 2016-03-23 | 兖矿集团有限公司 | Water gas desulfurization method and system thereof |
| CN105419882B (en) * | 2016-01-13 | 2018-04-13 | 兖矿集团有限公司 | A kind of desulfurization of water gas method and its system |
| CN110331008A (en) * | 2019-05-22 | 2019-10-15 | 湖南衡钢百达先锋能源科技有限公司 | A kind of gas desulfurizer and method |
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| CN102659102B (en) | 2014-07-30 |
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Effective date of registration: 20170928 Address after: Zaozhuang City, Shandong province 277527 Mu Shi Zhen Tengzhou City high-tech Lunan Chemical Industrial Park Patentee after: Yankuang Lunan Chemical Co., Ltd. Address before: Zaozhuang City, Shandong province 277527 wood and stone town Tengzhou City Patentee before: Yankuang Lunan Chemical Fertiliser Plant |