Patents
Sitemap › F25 - Refrigeration or cooling; Combined heating and refrigeration systems; Heat pump systems; Manufacture or storage of ice; Liquefaction or solidification of gases › F25J - Liquefaction, solidification, or separation of gases or gaseous mixtures by pressure and cold treatment › F25J 3 - Processes or apparatus for separating the constituents of gaseous mixtures involving the use of liquefaction or solidification
Patents for F25J 3 - Processes or apparatus for separating the constituents of gaseous mixtures involving the use of liquefaction or solidification (11,467)
05/1982
05/11/1982CA1123176A1 Process for the separation of ammonia and carbon dioxide from mixtures containing ammonia, carbon dioxide and water
04/1982
04/28/1982EP0050468A2 Separation of gas mixtures by partial condensation
04/20/1982US4325719 Cryogenics, ejectors
04/15/1982WO1982001242A1 Method and installation for obtaining nitrogen and oxygen
04/06/1982US4323380 Rectification of gaseous mixtures
03/1982
03/30/1982US4322225 Natural gas processing
03/30/1982US4321795 Process for the purification of gaseous chlorine
03/16/1982US4319900 For natural gas and air
03/09/1982US4318723 Solidification prevention
02/1982
02/24/1982EP0046367A2 Production of oxygen by air separation
02/24/1982EP0046366A2 Production of nitrogen by air separation
02/17/1982EP0045760A1 Method for purifying a gas mixture
01/1982
01/27/1982EP0044679A1 Method of producing gaseous oxygen and a cryogenic plant in which said method can be performed
01/26/1982US4312851 Expansion and compression using work generated in expansion
01/26/1982US4312652 Separation system
01/19/1982US4311496 Preliminary condensation of methane in the fractionation of a gaseous mixture
01/19/1982US4311495 Separating carbon dioxide and ethane by liquid-liquid extraction
12/1981
12/30/1981EP0042676A1 Method for producing gaseous oxygen and a cryogenic plant in which said method can be carried out
12/29/1981US4308043 Production of oxygen by air separation
12/15/1981US4305733 Method of treating natural gas to obtain a methane rich fuel gas
12/15/1981CA1114282A1 Tray for use in rectification column
12/08/1981US4304634 Method for producing isotopically enriched helium-4 and use of same as nuclear reactor coolant
12/01/1981US4303428 Cryogenic processes for separating air
11/1981
11/25/1981EP0040555A1 Process and apparatus for producing ammoniac-synthesis gas
11/10/1981US4299607 Process for recovering nitrogen in low pressure type air separation apparatus
11/10/1981US4299606 Recovery of HF and HCl from gaseous mixtures thereof
11/03/1981CA1111758A1 Natural gas liquefaction with nitrogen rejection stabilization
10/1981
10/29/1981WO1981003063A1 Distillative separation of carbon dioxide from hydrogen sulfide
10/28/1981EP0038686A2 Distillative separation of carbon dioxide from hydrogen sulfide
10/20/1981US4296085 Process for the production of ammonia and the corresponding synthesis gas
10/20/1981US4295945 Process for the production of liquid chlorine
10/20/1981US4295282 Heat and liquid recovery using open cycle heat pump system
10/13/1981EP0020645A4 Heat and liquid recovery using open cycle heat pump system.
10/06/1981US4293322 Distillative separation of carbon dioxide from hydrogen sulfide
10/01/1981WO1981002776A1 Distillative separation of acid gases from light hydrocarbons
09/1981
09/30/1981EP0036733A1 Distillative separation of carbon dioxide from light hydrocarbons
09/22/1981CA1109388A1 Process and apparatus for liquefying natural gas
09/15/1981US4289515 Compression, reverse heat exchanging
09/08/1981CA1108522A1 Cryogenic recovery of liquids from refinery off-gases
08/1981
08/25/1981US4285709 Liquefaction of waste gases for use as fuels
08/25/1981US4285708 Precooling treatment to conserve energy; natural gas liquids
08/20/1981WO1981002291A1 Method for purifying a gas mixture
08/18/1981US4284423 Separation of carbon dioxide and other acid gas components from hydrocarbon feeds containing admixtures of methane and hydrogen
08/18/1981CA1107190A1 Hydrocarbon recovery
08/11/1981US4283367 Plant for separating krypton and xenon from radioactive waste gases
08/11/1981CA1106751A1 Rectification of natural gas
08/04/1981US4281970 Turbo-expander control
08/04/1981CA1106148A1 Pretreatment of raw natural gas prior to liquefaction
07/1981
07/21/1981US4279631 Process and apparatus for the production of oxygen by two-stage low-temperature rectification of air
07/15/1981EP0032096A2 Process for producing ammonia and corresponding synthesis gas
07/14/1981US4278457 Hydrocarbon gas processing
07/07/1981US4277363 Method for processing a mixture of air and rare gases, especially xenon and krypton
06/1981
06/30/1981US4276057 Methane, propane
06/23/1981US4274851 Gas recovery of sulphur hexafluoride
06/23/1981US4274850 Rectification of natural gas
06/16/1981US4273566 Method and system for the fractionation of ethane-propane mixtures
06/09/1981US4272270 Compression, separation
06/09/1981US4272269 For hydrocarbons, absorption
06/03/1981EP0029678A1 Recovery of C2 hydrocarbons from demethanizer overhead
06/03/1981EP0029656A1 Method and cryogenic plant for producing gaseous oxygen
06/02/1981US4270940 Condensation, rectification in dephlegmator, return to demethanizer
06/02/1981US4270939 By condensation
06/02/1981US4270938 Processes for decontaminating nuclear process off-gas streams
06/02/1981US4270937 Absorbing sulfur-containing gases with carbon dioxide
05/1981
05/28/1981WO1981001459A1 Cryogenic distillative separation of acid gases from methane
05/27/1981EP0029324A1 A distillative method of separating a methane overhead product from a mixture thereof with an acid gas, and the products thus obtained
05/26/1981CA1101787A1 Separation of multicomponent mixtures
05/12/1981CA1100863A1 Cryogenic system for producing low-purity oxygen
04/1981
04/28/1981CA1100031A1 Liquefaction of high pressure gas
04/14/1981US4261719 Method of and apparatus for controlling rate of material air supply to air separation plant
04/08/1981EP0026229A1 Cryogenic recovery of liquids from refinery off-gases
03/1981
03/24/1981US4257794 Method of and apparatus for separating a gaseous hydrocarbon mixture
03/17/1981US4256476 Low temperature process for the recovery of ethane from thermal hydrocracking vent gases
03/17/1981US4256471 Distillation, desorption
03/17/1981CA1097564A1 Process for the recovery of ethane and heavier hydrocarbon components from methane-rich gases
03/11/1981EP0024962A1 Cryogenic air separation process with production of high-pressure oxygen
03/10/1981US4255406 Hydrogen recovery
03/10/1981US4254629 Cryogenic system for producing low-purity oxygen
03/03/1981CA1096624A1 Method for cryogenic separation of carbon dioxide from hydrocarbons
02/1981
02/24/1981US4252548 By scrubbing with cold methanol
02/17/1981US4251249 Which also contains methane and ethane by cooling, expansion and distillation
02/17/1981US4251248 Method and apparatus for automatic change of operations in air separation plant
02/17/1981US4251247 Method and apparatus for cooling a gaseous mixture
02/17/1981US4250704 Combined gas-steam power plant with a fuel gasification device
02/11/1981EP0023838A1 Separation of gas mixtures
02/10/1981US4249595 Plate type heat exchanger with bar means for flow control and structural support
01/1981
01/27/1981CA1094444A1 Liquid flash between expanders in gas separation
01/20/1981US4246015 Freeze-wash method for separating carbon dioxide and ethane
01/13/1981CA1093455A1 Cryogenic systems for producing low purity oxygen
01/07/1981EP0020645A1 Heat and liquid recovery using open cycle heat pump system.
01/06/1981US4242875 Hydrogen cryogenic purification system
12/1980
12/16/1980US4239647 Method and apparatus for manufacturing ammonia synthesis gas from a stream of gas rich in hydrogen and a stream of nitrogen
12/16/1980CA1091614A1 Pressure responsive fractionation control
12/10/1980EP0019905A1 Apparatus for the separation of a gas mixture by rectification
12/09/1980US4238211 Method of employing a first contaminant to prevent freeze-out of a second contaminant during cryogenic processing of a gaseous stream
12/02/1980CA1090697A1 Ethylene separation process
11/1980
11/26/1980EP0019508A1 Thermal-exchange assembly of the plate heat exchanger type
11/26/1980EP0019303A2 Process for extracting xenon and/or krypton from a carrier gas
11/18/1980US4234510 Direct cooling with a water stream followed by indirect cooling; gas flow
11/12/1980EP0018623A1 Process for the production of liquid chlorine
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