GB770493A - Improvements in or relating to two-stage carbon dioxide removal process - Google Patents
Improvements in or relating to two-stage carbon dioxide removal processInfo
- Publication number
- GB770493A GB770493A GB8446/55A GB844655A GB770493A GB 770493 A GB770493 A GB 770493A GB 8446/55 A GB8446/55 A GB 8446/55A GB 844655 A GB844655 A GB 844655A GB 770493 A GB770493 A GB 770493A
- Authority
- GB
- United Kingdom
- Prior art keywords
- alkanolamine
- carbon dioxide
- stage
- solution
- temperature
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 title abstract 10
- 239000001569 carbon dioxide Substances 0.000 title abstract 5
- 229910002092 carbon dioxide Inorganic materials 0.000 title abstract 5
- 238000000034 method Methods 0.000 title abstract 3
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 abstract 6
- BWHMMNNQKKPAPP-UHFFFAOYSA-L potassium carbonate Chemical compound [K+].[K+].[O-]C([O-])=O BWHMMNNQKKPAPP-UHFFFAOYSA-L 0.000 abstract 5
- 239000000243 solution Substances 0.000 abstract 5
- 239000007789 gas Substances 0.000 abstract 3
- 238000005201 scrubbing Methods 0.000 abstract 3
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 abstract 2
- 239000007864 aqueous solution Substances 0.000 abstract 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 abstract 2
- 229910000027 potassium carbonate Inorganic materials 0.000 abstract 2
- 230000001172 regenerating effect Effects 0.000 abstract 2
- 235000011121 sodium hydroxide Nutrition 0.000 abstract 2
- HZAXFHJVJLSVMW-UHFFFAOYSA-N 2-Aminoethan-1-ol Chemical compound NCCO HZAXFHJVJLSVMW-UHFFFAOYSA-N 0.000 abstract 1
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 abstract 1
- 238000010521 absorption reaction Methods 0.000 abstract 1
- 229910021529 ammonia Inorganic materials 0.000 abstract 1
- 230000015572 biosynthetic process Effects 0.000 abstract 1
- 230000003247 decreasing effect Effects 0.000 abstract 1
- 238000003795 desorption Methods 0.000 abstract 1
- 238000010438 heat treatment Methods 0.000 abstract 1
- 229910052739 hydrogen Inorganic materials 0.000 abstract 1
- 239000001257 hydrogen Substances 0.000 abstract 1
- 235000015320 potassium carbonate Nutrition 0.000 abstract 1
- 235000011181 potassium carbonates Nutrition 0.000 abstract 1
- 238000003786 synthesis reaction Methods 0.000 abstract 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/46—Removing components of defined structure
- B01D53/62—Carbon oxides
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B3/00—Hydrogen; Gaseous mixtures containing hydrogen; Separation of hydrogen from mixtures containing it; Purification of hydrogen
- C01B3/50—Separation of hydrogen or hydrogen containing gases from gaseous mixtures, e.g. purification
- C01B3/52—Separation of hydrogen or hydrogen containing gases from gaseous mixtures, e.g. purification by contacting with liquids; Regeneration of used liquids
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01G—COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F
- C01G49/00—Compounds of iron
- C01G49/02—Oxides; Hydroxides
-
- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25B—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES FOR THE PRODUCTION OF COMPOUNDS OR NON-METALS; APPARATUS THEREFOR
- C25B1/00—Electrolytic production of inorganic compounds or non-metals
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B2203/00—Integrated processes for the production of hydrogen or synthesis gas
- C01B2203/04—Integrated processes for the production of hydrogen or synthesis gas containing a purification step for the hydrogen or the synthesis gas
- C01B2203/0415—Purification by absorption in liquids
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B2203/00—Integrated processes for the production of hydrogen or synthesis gas
- C01B2203/04—Integrated processes for the production of hydrogen or synthesis gas containing a purification step for the hydrogen or the synthesis gas
- C01B2203/0465—Composition of the impurity
- C01B2203/047—Composition of the impurity the impurity being carbon monoxide
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B2203/00—Integrated processes for the production of hydrogen or synthesis gas
- C01B2203/04—Integrated processes for the production of hydrogen or synthesis gas containing a purification step for the hydrogen or the synthesis gas
- C01B2203/0465—Composition of the impurity
- C01B2203/0475—Composition of the impurity the impurity being carbon dioxide
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B2203/00—Integrated processes for the production of hydrogen or synthesis gas
- C01B2203/04—Integrated processes for the production of hydrogen or synthesis gas containing a purification step for the hydrogen or the synthesis gas
- C01B2203/0465—Composition of the impurity
- C01B2203/0495—Composition of the impurity the impurity being water
-
- 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
- Y02C—CAPTURE, STORAGE, SEQUESTRATION OR DISPOSAL OF GREENHOUSE GASES [GHG]
- Y02C20/00—Capture or disposal of greenhouse gases
- Y02C20/40—Capture or disposal of greenhouse gases of CO2
-
- 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
- Y02P20/151—Reduction of greenhouse gas [GHG] emissions, e.g. CO2
Abstract
Carbon dioxide is removed from hydrogen-containing gas obtained by interacting steam and methane, or from ammonia synthesis gas, by a two-stage absorption-desorption process, a major proportion of the carbon dioxide being removed in the first stage by scrubbing with a relatively large volume of an aqueous solution of potasium carbonate, preferably containing 30-40 per cent K2CO3 at a pressure of at least 90 p.s.i.g. and at a temperature of 240-270 DEG F. and regenerating the solution at a temperature within 50 DEG F. of the temperature during absorption and at a decreased pressure of not less than 10 p.s.i.g., the remaining portion of the carbon dioxide being substantially removed in the second stage by scrubbing with a relatively small volume of an aqueous solution of an alkanolamine, e.g. containing 40-60 per cent alkanolamine, at a temperature of e.g. 86-140 DEG F. and regenerating the solution by heating to e.g. 240-257 DEG F. The alkanolamine may be monoethanolamine. The potassium carbonate and alkanolamine solutions are regenerated in conventional way in regenerator towers provided with reboiler and condenser. A heat-exchanger and further cooler is provided in the alkanolamine solution circuit. A portion of the alkanolamine may be bled off and disstill with caustic soda, and then returned to the process. Residual carbon dioxide may be removed in a third stage by scrubbing the gas in a small tower with aqueous sodium hydroxide solution.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| NL226955 | 1958-04-17 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB770493A true GB770493A (en) | 1957-03-20 |
Family
ID=38707069
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB8446/55A Expired GB770493A (en) | 1958-04-17 | 1955-03-23 | Improvements in or relating to two-stage carbon dioxide removal process |
Country Status (4)
| Country | Link |
|---|---|
| BE (1) | BE577681A (en) |
| DE (1) | DE1083793B (en) |
| FR (2) | FR1128503A (en) |
| GB (1) | GB770493A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1650518A1 (en) * | 2003-07-15 | 2006-04-26 | Ngk Insulators, Ltd. | Firing furnace and method for firing |
| WO2014071511A1 (en) * | 2012-11-09 | 2014-05-15 | University Of Ontario Institute Of Technology | Systems, methods and devices for the capture and hydrogenation of carbon dioxide with thermochemical cu-cl and mg-cl-na/k-c02 cycles |
-
1955
- 1955-03-23 GB GB8446/55A patent/GB770493A/en not_active Expired
- 1955-04-05 FR FR1128503D patent/FR1128503A/en not_active Expired
-
1959
- 1959-04-14 BE BE577681A patent/BE577681A/en unknown
- 1959-04-17 DE DEM41197A patent/DE1083793B/en active Pending
- 1959-04-17 FR FR792367A patent/FR1221557A/en not_active Expired
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1650518A1 (en) * | 2003-07-15 | 2006-04-26 | Ngk Insulators, Ltd. | Firing furnace and method for firing |
| EP1650518A4 (en) * | 2003-07-15 | 2009-11-11 | Ngk Insulators Ltd | Firing furnace and method for firing |
| EP2444766A1 (en) * | 2003-07-15 | 2012-04-25 | NGK Insulators, Ltd. | Firing furnace and method for firing |
| WO2014071511A1 (en) * | 2012-11-09 | 2014-05-15 | University Of Ontario Institute Of Technology | Systems, methods and devices for the capture and hydrogenation of carbon dioxide with thermochemical cu-cl and mg-cl-na/k-c02 cycles |
Also Published As
| Publication number | Publication date |
|---|---|
| FR1128503A (en) | 1957-01-07 |
| DE1083793B (en) | 1960-06-23 |
| BE577681A (en) | 1959-07-31 |
| FR1221557A (en) | 1960-06-02 |
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