CN1237002C - Process for generating and purifying CO - Google Patents
Process for generating and purifying CO Download PDFInfo
- Publication number
- CN1237002C CN1237002C CNB021352321A CN02135232A CN1237002C CN 1237002 C CN1237002 C CN 1237002C CN B021352321 A CNB021352321 A CN B021352321A CN 02135232 A CN02135232 A CN 02135232A CN 1237002 C CN1237002 C CN 1237002C
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- Prior art keywords
- gas
- technology
- dewatering
- enter
- dehydration
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- 238000000034 method Methods 0.000 title claims abstract description 27
- 230000008569 process Effects 0.000 title claims abstract description 13
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 21
- 239000003513 alkali Substances 0.000 claims abstract description 11
- 238000001816 cooling Methods 0.000 claims abstract description 10
- 238000006477 desulfuration reaction Methods 0.000 claims abstract description 7
- 230000023556 desulfurization Effects 0.000 claims abstract description 7
- 238000003860 storage Methods 0.000 claims abstract description 5
- 238000002485 combustion reaction Methods 0.000 claims abstract description 4
- 230000003009 desulfurizing effect Effects 0.000 claims abstract description 4
- 239000007789 gas Substances 0.000 claims description 39
- 230000018044 dehydration Effects 0.000 claims description 17
- 238000006297 dehydration reaction Methods 0.000 claims description 17
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 12
- 229910052760 oxygen Inorganic materials 0.000 claims description 12
- 239000001301 oxygen Substances 0.000 claims description 12
- 238000004140 cleaning Methods 0.000 claims description 10
- 238000000926 separation method Methods 0.000 claims description 6
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 claims description 5
- 230000003139 buffering effect Effects 0.000 claims description 5
- 235000011089 carbon dioxide Nutrition 0.000 claims description 5
- 239000000571 coke Substances 0.000 claims description 5
- 238000001035 drying Methods 0.000 claims description 5
- 239000000428 dust Substances 0.000 claims description 5
- 238000004073 vulcanization Methods 0.000 claims description 5
- 235000003599 food sweetener Nutrition 0.000 claims description 4
- 239000003765 sweetening agent Substances 0.000 claims description 4
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 claims description 3
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 claims description 3
- 238000009833 condensation Methods 0.000 claims description 3
- 230000005494 condensation Effects 0.000 claims description 3
- 239000000284 extract Substances 0.000 claims description 3
- 229910052739 hydrogen Inorganic materials 0.000 claims description 3
- 239000001257 hydrogen Substances 0.000 claims description 3
- 238000010010 raising Methods 0.000 claims description 3
- 239000002994 raw material Substances 0.000 claims description 3
- 229910052717 sulfur Inorganic materials 0.000 claims description 3
- 239000011593 sulfur Substances 0.000 claims description 3
- 239000000203 mixture Substances 0.000 claims description 2
- BDAGIHXWWSANSR-UHFFFAOYSA-N methanoic acid Natural products OC=O BDAGIHXWWSANSR-UHFFFAOYSA-N 0.000 abstract description 6
- 230000000694 effects Effects 0.000 abstract description 4
- 239000002808 molecular sieve Substances 0.000 abstract description 4
- URGAHOPLAPQHLN-UHFFFAOYSA-N sodium aluminosilicate Chemical compound [Na+].[Al+3].[O-][Si]([O-])=O.[O-][Si]([O-])=O URGAHOPLAPQHLN-UHFFFAOYSA-N 0.000 abstract description 4
- 238000005406 washing Methods 0.000 abstract description 4
- OSWFIVFLDKOXQC-UHFFFAOYSA-N 4-(3-methoxyphenyl)aniline Chemical compound COC1=CC=CC(C=2C=CC(N)=CC=2)=C1 OSWFIVFLDKOXQC-UHFFFAOYSA-N 0.000 abstract description 3
- 235000019253 formic acid Nutrition 0.000 abstract description 3
- 238000004519 manufacturing process Methods 0.000 abstract description 3
- 230000008929 regeneration Effects 0.000 abstract description 3
- 238000011069 regeneration method Methods 0.000 abstract description 3
- 238000001179 sorption measurement Methods 0.000 abstract description 2
- 239000003139 biocide Substances 0.000 abstract 1
- 239000003795 chemical substances by application Substances 0.000 abstract 1
- 238000012423 maintenance Methods 0.000 abstract 1
- 238000000746 purification Methods 0.000 abstract 1
- -1 soda monohydrate Chemical class 0.000 abstract 1
- 208000005156 Dehydration Diseases 0.000 description 13
- UCKMPCXJQFINFW-UHFFFAOYSA-N Sulphide Chemical compound [S-2] UCKMPCXJQFINFW-UHFFFAOYSA-N 0.000 description 2
- JYYOBHFYCIDXHH-UHFFFAOYSA-N carbonic acid;hydrate Chemical compound O.OC(O)=O JYYOBHFYCIDXHH-UHFFFAOYSA-N 0.000 description 2
- 235000019628 coolness Nutrition 0.000 description 2
- 238000005336 cracking Methods 0.000 description 2
- 230000006837 decompression Effects 0.000 description 2
- 239000012535 impurity Substances 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- CSJDCSCTVDEHRN-UHFFFAOYSA-N methane;molecular oxygen Chemical compound C.O=O CSJDCSCTVDEHRN-UHFFFAOYSA-N 0.000 description 1
- 238000003672 processing method Methods 0.000 description 1
- 230000001172 regenerating effect Effects 0.000 description 1
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- Carbon And Carbon Compounds (AREA)
Abstract
The present invention discloses a technology for generating and purifying CO. A technological process comprises fives parts of CO generation, water washing and alkali washing, gas holder storage, desulfurization and deoxidization, and high-pressure deep-cooling dewatering. The technology is characterized in that the technology adopts a method for incomplete combustion of soda monohydrate to generate CO, and the cost is low as compared with a formic acid splitting method. Compared with the past CO purification which adopts a pressure swing adsorption method, the technology has the advantages of less investment, simple operation, low operating cost, no need of regeneration of desulfurizing agents and killing agents, simple maintenance, large operating flexibility, etc. The dewatering part of the technology adopts a high-pressure deep-cooling dewatering technology, and the dewatering effect is stable and reliable. Molecular sieve dewatering is always adopted in the past, but a molecular sieve regeneration technology is added; the dewatering effect is unstable, and fluctuation of product quality in production is frequently caused.
Description
One, technical field: the invention discloses a kind of CO generation, purifying technique.
Two, background technology: the method for CO generation at present mainly adopts method methods such as formic acid cracking, and the method for purifying adopts pressure swing absorption process more, and two kinds of methods are in conjunction with producing CO.These two kinds of methods in actual use, the production cost height, technological equipment investment is big, trivial operations, product stability is poor.
Three, summary of the invention: purpose of the present invention is exactly the problems referred to above that exist in the existing processing method, and a kind of technology is simple, product is stable CO generation, purifying technique are provided.
Its technical process comprises that alkali cleaning, gas holder storage, desulfating and deoxidation, five part compositions of high pressure deep cooling dehydration take place, wash CO.Concrete technical process is: (one) is raw material with oxygen A and coke B, oxygen is sent by oxygen canister 1, enter from special CO stove 2 bottoms, coke is added by CO stove top, in stove, carry out incomplete combustion, generation concentration is 95% CO gas, contains impurity such as gas vulcanization thing, oxygen, carbonic acid gas, water and dust in the gas, must be purified; (2) this CO gas is washed through water wash column 3 earlier, to remove dust, carries out alkali cleaning through water wash column 4 again, to remove carbonic acid gas and partial vulcanization hydrogen; (3) the CO gas after the alkali cleaning enters surge tank 5, extracts out through pneumatic plant 6, enters gas holder 8 through surge tank 7 and enters storage; (4) Root's blower 9 is extracted out CO gas by gas holder, after water separation tank 10 simple dehydration, enter normal temperature thionizer 11, sweetening agent is housed in the tower, can slough inorganic sulfur, again behind heater via 12 heat temperature raisings to 60～90 ℃, enter thermally desulfurizing tower 13,, be chilled to normal temperature through water cooler 14 then with organic sulfide removal, enter normal temperature thionizer 15 once more, carry out further desulfurization; CO gas after the desulfurization is heated to 160～240 ℃ by well heater 16, enters deoxidation tower 17 subsequently, relies on the reductor in the tower to remove oxygen; (5) CO gas is collected to water separation tank 19 after the deoxidation after water cooler 18 coolings, at last CO gas is sent into supercharger 20 and be pressurized to specified pressure, drying condenser 21 carries out the condensation dehydration again, can reach desirable dehydration precision by adjusting pressure and condensing temperature, the moisture drying condenser outlet decompression of deviating from is discharged, CO gas after the dehydration enters high-pressure buffering pot 22, reaches the purified CO gas C of service requirements through purifying, again by the high-pressure buffering pot carrying device.
Process characteristic of the present invention: the unburnt method of this process using carbon oxygen produces CO, compares with the formic acid cracking process, and cost is much lower.CO pressure swing adsorption processs that adopt of purifying in the past adopt this technology to have less investment, simple to operate, advantage such as process cost is low by comparison, and sweetening agent do not need regeneration with reductor, safeguard that simply, turndown ratio is big.High pressure deep cooling dewatering process is partly adopted in the dehydration of this technology, and dehydrating effect is reliable and stable.And in the past molecular sieve dehydrations that adopt, but to set up regenerating molecular sieve technology, and the dehydrating effect instability, often cause quality product fluctuation in the production. more
Four, description of drawings: accompanying drawing is a technological principle schema of the present invention.
Five, embodiment:
Referring to accompanying drawing, this technology is made up of CO generation, washing alkali cleaning, gas holder, desulfating and deoxidation, five parts of high pressure deep cooling dehydration.Technological process is:
(1), CO takes place: with oxygen A and coke B is raw material, oxygen is sent by oxygen canister 1, enter from special CO stove 2 bottoms, coke is added by CO stove top, in stove, carry out incomplete combustion, generation concentration is 95% CO gas, contains impurity such as gas vulcanization thing, oxygen, carbonic acid gas, water and dust in the gas, must be purified.
(2) washing alkali cleaning: this CO gas is washed through water wash column 3 earlier, to remove dust, carries out alkali cleaning through water wash column 4 again, to remove carbonic acid gas and partial vulcanization hydrogen.
(3) gas holder stores: the CO gas after the alkali cleaning enters surge tank 5, extracts out through pneumatic plant (present embodiment adopts the water-circulation type pneumatic plant) 6, enters gas holder 8 through surge tank 7 and enters storage.
(4) desulfating and deoxidation: Root's blower 9 is extracted out CO gas by gas holder, after water separation tank 10 simple dehydration, enter normal temperature thionizer 11, sweetening agent is housed in the tower, can slough inorganic sulfur, again behind heater via 12 heat temperature raisings to 60～90 ℃, enter thermally desulfurizing tower 13,, be chilled to normal temperature through water cooler 14 then with organic sulfide removal, enter normal temperature thionizer 15 once more, carry out further desulfurization.CO gas after the desulfurization is heated to 160～240 ℃ by well heater 16, enters deoxidation tower 17 subsequently, relies on the reductor in the tower to remove oxygen.
(5) high pressure deep cooling dehydration: CO gas is collected to water separation tank 19 after the deoxidation after water cooler 18 coolings, at last CO gas is sent into supercharger (present embodiment adopts the diaphragm type high-pressure unit) 20 and be pressurized to specified pressure, drying condenser 21 carries out the condensation dehydration again, can reach desirable dehydration precision (the general requirement water-content is lower than 100PPm) by adjusting pressure and condensing temperature, the moisture drying condenser outlet decompression of deviating from is discharged, CO gas after the dehydration enters high-pressure buffering pot 22, reach the purified CO gas C of service requirements through purifying, again by the high-pressure buffering pot carrying device.
Claims (1)
1, CO generation, purifying technique is characterized in that this technology comprises that alkali cleaning, storage, desulfating and deoxidation, five part compositions of high pressure deep cooling dehydration take place, wash CO, and concrete technical process is:
(1), be raw material with oxygen and coke, add from roasting kiln (2) bottom and top respectively, in stove, carry out incomplete combustion, generation concentration is 95% CO gas;
(2), CO gas washes through water wash column (3) earlier, to remove dust, carries out alkali cleaning through water wash column (4) again, to remove carbonic acid gas and partial vulcanization hydrogen;
(3), the CO gas after the alkali cleaning enters surge tank (5), extracts out through pneumatic plant (6), enter gas holder (8) through surge tank (7) and store;
(4), CO gas is extracted out by gas holder, after water separation tank (10) simple dehydration, enter normal temperature thionizer (11), sweetening agent is housed in the tower, slough inorganic sulfur, again behind heater via (12) heat temperature raising to 60～90 ℃, enter thermally desulfurizing tower (13) and slough organosulfur, then through water cooler (14) to normal temperature, enter normal temperature thionizer (15) once more, carry out the secondary desulfurization, the CO gas after the desulfurization is heated to 160～240 ℃ by well heater (16), enter deoxidation tower (17) subsequently, rely on the reductor in the tower to remove oxygen;
(5), CO gas is collected to water separation tank (19) after water cooler (18) cooling after the deoxidation, at last CO gas is sent into supercharger (20) supercharging, drying condenser (21) carries out the condensation dehydration, the CO gas after the dehydration enters high-pressure buffering pot (22).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB021352321A CN1237002C (en) | 2002-06-21 | 2002-06-21 | Process for generating and purifying CO |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB021352321A CN1237002C (en) | 2002-06-21 | 2002-06-21 | Process for generating and purifying CO |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1390783A CN1390783A (en) | 2003-01-15 |
| CN1237002C true CN1237002C (en) | 2006-01-18 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB021352321A Expired - Lifetime CN1237002C (en) | 2002-06-21 | 2002-06-21 | Process for generating and purifying CO |
Country Status (1)
| Country | Link |
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| CN (1) | CN1237002C (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101302009B (en) * | 2008-06-23 | 2010-06-02 | 四川天一科技股份有限公司 | Method for transporting, purifying and purifying carbon monoxide of silicon carbide smelting furnace gas |
| CN101993075A (en) * | 2010-10-09 | 2011-03-30 | 宜兴市创新精细化工有限公司 | Method for rapidly reducing water content in carbon monoxide (CO) |
| CN104707449A (en) * | 2015-03-12 | 2015-06-17 | 福建三农化学农药有限责任公司 | Dehydration method and dehydration device of cracked gas in production of hexafluoropropylene |
-
2002
- 2002-06-21 CN CNB021352321A patent/CN1237002C/en not_active Expired - Lifetime
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| Publication number | Publication date |
|---|---|
| CN1390783A (en) | 2003-01-15 |
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Address after: 257109 No. 38 Huanghe Road, Dongying District, Dongying City, Shandong Province Patentee after: SHANDONG DONGCHANG FINE CHEMICAL TECHNOLOGY Co.,Ltd. Address before: 257109 Tianyu Yinhai Hotel, Haochun Road, Dongying City, Shandong Province Patentee before: SHANDONG DONGCHANG FINE CHEMICAL TECHNOLOGY Co.,Ltd. |
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Granted publication date: 20060118 |