GB790287A - Improvements in or relating to method for separating carbon dioxide and hydrogen sulfide from gas mixtures - Google Patents
Improvements in or relating to method for separating carbon dioxide and hydrogen sulfide from gas mixturesInfo
- Publication number
- GB790287A GB790287A GB6057/55A GB605755A GB790287A GB 790287 A GB790287 A GB 790287A GB 6057/55 A GB6057/55 A GB 6057/55A GB 605755 A GB605755 A GB 605755A GB 790287 A GB790287 A GB 790287A
- Authority
- GB
- United Kingdom
- Prior art keywords
- absorber
- steam
- solution
- regenerator
- boiling 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 6
- 239000001569 carbon dioxide Substances 0.000 title abstract 3
- 229910002092 carbon dioxide Inorganic materials 0.000 title abstract 3
- RWSOTUBLDIXVET-UHFFFAOYSA-N Dihydrogen sulfide Chemical compound S RWSOTUBLDIXVET-UHFFFAOYSA-N 0.000 title abstract 2
- 239000007789 gas Substances 0.000 title abstract 2
- 238000000034 method Methods 0.000 title abstract 2
- 229910000037 hydrogen sulfide Inorganic materials 0.000 title 1
- 239000000203 mixture Substances 0.000 title 1
- 239000000243 solution Substances 0.000 abstract 7
- 239000006096 absorbing agent Substances 0.000 abstract 6
- 238000009835 boiling Methods 0.000 abstract 5
- BWHMMNNQKKPAPP-UHFFFAOYSA-L potassium carbonate Chemical compound [K+].[K+].[O-]C([O-])=O BWHMMNNQKKPAPP-UHFFFAOYSA-L 0.000 abstract 4
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 abstract 2
- 229910000027 potassium carbonate Inorganic materials 0.000 abstract 2
- 230000008929 regeneration Effects 0.000 abstract 2
- 238000011069 regeneration method Methods 0.000 abstract 2
- LWIHDJKSTIGBAC-UHFFFAOYSA-K tripotassium phosphate Chemical compound [K+].[K+].[K+].[O-]P([O-])([O-])=O LWIHDJKSTIGBAC-UHFFFAOYSA-K 0.000 abstract 2
- JHWIEAWILPSRMU-UHFFFAOYSA-N 2-methyl-3-pyrimidin-4-ylpropanoic acid Chemical compound OC(=O)C(C)CC1=CC=NC=N1 JHWIEAWILPSRMU-UHFFFAOYSA-N 0.000 abstract 1
- 239000012670 alkaline solution Substances 0.000 abstract 1
- 238000001816 cooling Methods 0.000 abstract 1
- 238000005260 corrosion Methods 0.000 abstract 1
- 230000007797 corrosion Effects 0.000 abstract 1
- 230000002401 inhibitory effect Effects 0.000 abstract 1
- 239000000463 material Substances 0.000 abstract 1
- 229910000160 potassium phosphate Inorganic materials 0.000 abstract 1
- 235000011009 potassium phosphates Nutrition 0.000 abstract 1
- 230000001172 regenerating effect Effects 0.000 abstract 1
- 238000005201 scrubbing Methods 0.000 abstract 1
- 229910000029 sodium carbonate Inorganic materials 0.000 abstract 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10K—PURIFYING OR MODIFYING THE CHEMICAL COMPOSITION OF COMBUSTIBLE GASES CONTAINING CARBON MONOXIDE
- C10K1/00—Purifying combustible gases containing carbon monoxide
- C10K1/08—Purifying combustible gases containing carbon monoxide by washing with liquids; Reviving the used wash liquors
- C10K1/10—Purifying combustible gases containing carbon monoxide by washing with liquids; Reviving the used wash liquors with aqueous liquids
- C10K1/12—Purifying combustible gases containing carbon monoxide by washing with liquids; Reviving the used wash liquors with aqueous liquids alkaline-reacting including the revival of the used wash liquors
-
- 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
- B01D53/48—Sulfur compounds
- B01D53/52—Hydrogen sulfide
- B01D53/526—Mixtures of hydrogen sulfide and carbon dioxide
-
- 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
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Combustion & Propulsion (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Environmental & Geological Engineering (AREA)
- Biomedical Technology (AREA)
- Analytical Chemistry (AREA)
- Health & Medical Sciences (AREA)
- Organic Chemistry (AREA)
- Treating Waste Gases (AREA)
- Gas Separation By Absorption (AREA)
- Carbon And Carbon Compounds (AREA)
Abstract
<PICT:0790287/III/1> The process of the parent Specification of absorbing carbon dioxide or hydrogen sulphide from gases by alkaline solutions, particularly potassium carbonate, under superatmospheric pressure, regenerating by boiling and steam stripping at about atmospheric pressure and returning the solution to the absorber at about atmospheric boiling temperature, is modified by conducting the regeneration under sub-atmospheric pressure corresponding to a boiling temperature of 170 DEG F. and upwards. The apparatus may be the same as that of the parent Specification with the inclusion of a vacuum pump &c. to maintain sub-atmospheric pressure in the regenerator column; a separate flashing vessel immediately after the absorber may be dispensed with. Part, e.g. 2/3 , of the regenerated solution may be introduced at an intermediate level of the absorber, the remainder being cooled e.g. 30-100 DEG F. and introduced at the top. Or this minor stream, with or without subsequent cooling, may be subjected to more thorough regeneration. Fouled solution from an absorber 202 maintained e.g. at 300 lb. per sq. in. pressure passes through a letdown valve 208 to a regenerator 209 in which a sub-atmospheric pressure, e.g. corresponding to a boiling temperature of 200 DEG F. at the bottom of the column, is maintained by a vacuum pump 215 which draws off carbon dioxide &c. from a separator 212 collecting effluent from the top of column after passage through a condenser 211. Most of the regenerated solution is recycled through a line 204 to an intermediate level of the absorber. A minor quantity is pumped to a secondary regenerator 223 maintained e.g. at about 30 lb. per sq. in. pressure (boiling temperature 290 DEG F.) stripping steam being provided by means of a closed coil receiving exhaust steam from the vacuum pump turbine 217 or by direct input of steam. The regenerated solution passes through a let-down valve 229 to a flashing vessel 320 from which steam is supplied to the main regenerator and the cooled solution through a coole 234 if desired, to the top of the absorber. Corrosion inhibiting material, e.g. 0.2-0.3 p.c. of sodium dichromate by weight of the potassium carbonate may be employed. Sodium carbonate and potassium phosphate may be used as scrubbing solutions. Specifications 790,288 and 790,289 also are referred to.
Priority Applications (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB6759/53A GB725000A (en) | 1955-03-01 | 1953-03-11 | Improvements in or relating to method for separating carbon dioxide and hydrogen sulphide from gas mixtures |
| GB24313/56A GB790288A (en) | 1955-03-01 | 1955-03-01 | Improvements in or relating to method for separating carbon dioxide and hydrogen sulfide from gas mixtures |
| GB24314/56A GB790289A (en) | 1955-03-01 | 1955-03-01 | Improvements in or relating to method for separating carbon dioxide and hydrogen sulfide from gas mixtures |
| GB6057/55A GB790287A (en) | 1955-03-01 | 1955-03-01 | Improvements in or relating to method for separating carbon dioxide and hydrogen sulfide from gas mixtures |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB6057/55A GB790287A (en) | 1955-03-01 | 1955-03-01 | Improvements in or relating to method for separating carbon dioxide and hydrogen sulfide from gas mixtures |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB790287A true GB790287A (en) | 1958-02-05 |
Family
ID=9807630
Family Applications (4)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB6759/53A Expired GB725000A (en) | 1955-03-01 | 1953-03-11 | Improvements in or relating to method for separating carbon dioxide and hydrogen sulphide from gas mixtures |
| GB24313/56A Expired GB790288A (en) | 1955-03-01 | 1955-03-01 | Improvements in or relating to method for separating carbon dioxide and hydrogen sulfide from gas mixtures |
| GB24314/56A Expired GB790289A (en) | 1955-03-01 | 1955-03-01 | Improvements in or relating to method for separating carbon dioxide and hydrogen sulfide from gas mixtures |
| GB6057/55A Expired GB790287A (en) | 1955-03-01 | 1955-03-01 | Improvements in or relating to method for separating carbon dioxide and hydrogen sulfide from gas mixtures |
Family Applications Before (3)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB6759/53A Expired GB725000A (en) | 1955-03-01 | 1953-03-11 | Improvements in or relating to method for separating carbon dioxide and hydrogen sulphide from gas mixtures |
| GB24313/56A Expired GB790288A (en) | 1955-03-01 | 1955-03-01 | Improvements in or relating to method for separating carbon dioxide and hydrogen sulfide from gas mixtures |
| GB24314/56A Expired GB790289A (en) | 1955-03-01 | 1955-03-01 | Improvements in or relating to method for separating carbon dioxide and hydrogen sulfide from gas mixtures |
Country Status (1)
| Country | Link |
|---|---|
| GB (4) | GB725000A (en) |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1083973B (en) * | 1954-04-07 | 1960-06-23 | Chemical Construction Corp | Two-step process for removing carbon dioxide from gases |
| US2912301A (en) * | 1956-10-18 | 1959-11-10 | Kellogg M W Co | Method of removing acidic components from gaseous mixtures |
| DE2945675C2 (en) * | 1979-11-12 | 1984-08-16 | Union Rheinische Braunkohlen Kraftstoff AG, 5000 Köln | Process for the production of pure hydrogen sulfide |
| GB8431597D0 (en) * | 1984-12-14 | 1985-01-30 | Ici Plc | Treatment of gas mixtures |
| GB8432657D0 (en) * | 1984-12-27 | 1985-02-06 | Ici Plc | Separation process |
| KR20080027873A (en) | 2005-06-23 | 2008-03-28 | 지알디씨, 엘엘씨 | Efficient production of hydrogen |
| GB0715101D0 (en) * | 2007-08-03 | 2007-09-12 | Johnson Matthey Plc | Process |
| FR3087526B1 (en) * | 2018-10-18 | 2020-12-18 | Air Liquide | INSTALLATION AND PRODUCTION PROCESS OF LIQUEFIED METHANE |
-
1953
- 1953-03-11 GB GB6759/53A patent/GB725000A/en not_active Expired
-
1955
- 1955-03-01 GB GB24313/56A patent/GB790288A/en not_active Expired
- 1955-03-01 GB GB24314/56A patent/GB790289A/en not_active Expired
- 1955-03-01 GB GB6057/55A patent/GB790287A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| GB725000A (en) | 1955-03-02 |
| GB790288A (en) | 1958-02-05 |
| GB790289A (en) | 1958-02-05 |
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