GB918479A - - Google Patents
Info
- Publication number
- GB918479A GB918479A GB918479DA GB918479A GB 918479 A GB918479 A GB 918479A GB 918479D A GB918479D A GB 918479DA GB 918479 A GB918479 A GB 918479A
- Authority
- GB
- United Kingdom
- Prior art keywords
- methane
- gas
- exchanger
- duct
- slurry
- 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.)
- Active
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25J—LIQUEFACTION, SOLIDIFICATION OR SEPARATION OF GASES OR GASEOUS OR LIQUEFIED GASEOUS MIXTURES BY PRESSURE AND COLD TREATMENT OR BY BRINGING THEM INTO THE SUPERCRITICAL STATE
- F25J3/00—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification
- F25J3/08—Separating gaseous impurities from gases or gaseous mixtures or from liquefied gases or liquefied gaseous mixtures
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D3/00—Distillation or related exchange processes in which liquids are contacted with gaseous media, e.g. stripping
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C7/00—Purification; Separation; Use of additives
-
- 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
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Organic Chemistry (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Combustion & Propulsion (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Mechanical Engineering (AREA)
- Thermal Sciences (AREA)
- General Engineering & Computer Science (AREA)
- General Chemical & Material Sciences (AREA)
- Physics & Mathematics (AREA)
- Analytical Chemistry (AREA)
- Water Supply & Treatment (AREA)
- Separation By Low-Temperature Treatments (AREA)
Abstract
918,479. Cold separation of gas mixtures. CONCH INTERNATIONAL METHANE Ltd. Oct. 11, 1961, No. 36442/61. Addition to 894,102. Class 8(2). Removal of solidifiable impurities e.g., hydrogen sulphide and carbon dioxide from a crude gas e.g., methane as claimed in the parent Specification is accompanied by removal of a contaminant gas of lower boiling point than methane e.g., nitrogen or hydrogen which is effected by liquefying the crude gas without solidifying the impurities e.g., by expansion in a turbine 2, cooling in a heat exchanger 4 traversed by cold separated constituents, expansion of crude liquid gas containing uncondensed nitrogen at a valve 8 into a chamber 9 so as to form a slurry of solid impurities, a flash-off vapour and gaseous nitrogen which is vented through a valved duct 42; the flashed off vapour being condensed by heat exchange at 10 with purified liquid methane and returning it to the slurry which is then expanded at a valve 20 into a separator 21 from which a concentrated slurry of solid impurities is withdrawn through a duct 32, pure liquid methane is withdrawn through a duct 25 and is forced by a pump 26 through the condenser 10 and by a second pump 28 through a duct 31 and the exchanger 4 to a discharge duct, and pure methane gas is withdrawn through a duet 22 and traverses the exchanger 4. In the event of the crude methane containing 7 mol per cent or more of hydrogen sulphide the liquefied gas leaving the exchanger 4 comprises two liquid phases which are separated in a decanter 6 into an upper methane rich layer of liquid which is expanded into chambers 9, 13-18 in series and into a lower layer rich in hydrogen sulphide which is expanded into a chamber 37 to form a concentrated slurry and a flash-off methane gas containing about 3% hydrogen sulphide; the cold content of the slurry and gas being recovered in exchanger 4. Flash-off vapour from separator 21 traverses an exchanger 23 in countercurrent to a minor portion of purified liquid methane leaving the pump 28 through a line 29 for return to line 27 and the so-warmed vapour is then passed through the exchanger 4 and a compressor 24 driven by the turbine 2.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB171361A GB894102A (en) | 1961-01-16 | 1961-01-16 | Purification of gases |
| GB3644261 | 1961-10-11 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB918479A true GB918479A (en) |
Family
ID=26236922
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB918479D Active GB918479A (en) | 1961-01-16 | ||
| GB171361A Expired GB894102A (en) | 1961-01-16 | 1961-01-16 | Purification of gases |
Family Applications After (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB171361A Expired GB894102A (en) | 1961-01-16 | 1961-01-16 | Purification of gases |
Country Status (2)
| Country | Link |
|---|---|
| DE (1) | DE1444939A1 (en) |
| GB (2) | GB894102A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2152835A (en) * | 1983-11-10 | 1985-08-14 | Linde Ag | Process for the separation of gas and/or liquid mixtures |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105716372B (en) * | 2016-03-01 | 2018-05-25 | 神华集团有限责任公司 | The method of raw gas decarbonization, desulfuration |
-
0
- GB GB918479D patent/GB918479A/en active Active
-
1961
- 1961-01-16 GB GB171361A patent/GB894102A/en not_active Expired
-
1962
- 1962-01-15 DE DE19621444939 patent/DE1444939A1/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2152835A (en) * | 1983-11-10 | 1985-08-14 | Linde Ag | Process for the separation of gas and/or liquid mixtures |
| US4604107A (en) * | 1983-11-10 | 1986-08-05 | Linde Aktiengesellschaft | Low temperature separation of fluids by formation of phases having different densities |
Also Published As
| Publication number | Publication date |
|---|---|
| DE1444939A1 (en) | 1968-12-12 |
| GB894102A (en) | 1962-04-18 |
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