Patents for F25J 3 - Processes or apparatus for separating the constituents of gaseous mixtures involving the use of liquefaction or solidification (11,467)
11/1980
11/04/1980US4231418 Cryogenic regenerator
10/1980
10/29/1980EP0018062A1 Method and apparatus for manufacturing ammonia synthesis gas from a stream of gas rich in hydrogen and a stream of nitrogen
10/29/1980EP0018028A1 Process for the separation of ammonia and carbon dioxide from mixtures containing ammonia, carbon dioxide and water
10/28/1980US4230469 Distillation of methane from a methane-containing crude gas
10/21/1980US4228845 Chiller with means for mixing hot vapors with cold or refrigerated liquid
10/21/1980US4228660 Heat exchangers
10/16/1980WO1980002192A1 Cryogenic recovery of liquids from refinery off-gases
10/15/1980EP0017538A1 Process and apparatus for obtaining substantially pure argon
10/15/1980EP0017297A1 Cryogenic process for separating synthesis gas
10/15/1980EP0017174A1 Process for separating a gaseous mixture
10/07/1980CA1087086A1 Process for treating pressurized gases to remove unwanted components
10/01/1980EP0016043A1 Cryogenic apparatus and method of removing freezing impurities from a cryogenic fluid
09/1980
09/30/1980US4225329 Natural gas liquefaction with nitrogen rejection stabilization
09/23/1980US4224045 Cryogenic system for producing low-purity oxygen
09/16/1980US4222756 Tonnage nitrogen generator
08/1980
08/19/1980US4218229 Separation of ethylene-containing hydrocarbon mixtures by low temperature rectification
08/19/1980US4217759 Cryogenic process for separating synthesis gas
08/12/1980US4216819 Enhanced condensation heat transfer device and method
07/1980
07/17/1980EP0016043A4 Cryogenic apparatus and method of removing freezing impurities from a cryogenic fluid.
07/08/1980US4211544 Compression of nitrogen overhead from high pressure column in tractionation of air
06/1980
06/24/1980CA1080115A1 Distillation of methane from a methane-containing crude gas
06/17/1980US4208199 Process of and system for liquefying air to separate its component
06/17/1980US4208198 Cryogenics
06/10/1980CA1079264A1 Enhanced condensation heat transfer device and method
06/10/1980CA1079179A1 Method for separating carbon dioxide from methane
05/1980
05/29/1980WO1980001103A1 Heat and liquid recovery using open cycle heat pump system
05/27/1980CA1078301A1 Production of liquid oxygen and/or liquid nitrogen
05/27/1980CA1078300A1 Purification of natural gas
05/20/1980US4203742 Heat exchanging, liquefaction
05/20/1980US4203741 Separate feed entry to separator-contactor in gas separation
05/14/1980EP0010939A1 Process for the recovering of ethane and heavier hydrocarbon components from methane-rich gases
05/13/1980US4202678 Air separation liquefaction process
04/1980
04/30/1980EP0010223A1 Process for decomposing a gas mixture
04/01/1980US4195979 Liquefaction of high pressure gas
03/1980
03/18/1980CA1073804A1 Hydrocarbon gas processing
03/11/1980US4192662 Process for liquefying and rectifying air
03/11/1980US4192661 Adsorbing impurities from cryogenic fluid make-up prior to admixing with feed
03/04/1980CA1072719A1 Treatment of ammonia synthesis purge gas
02/1980
02/20/1980EP0008273A1 A process for treating effluent gases arising from the reprocessing of irradiated nuclear fuels
02/19/1980US4188793 Condensation of vapor of organic liquids
01/1980
01/29/1980US4185978 Method for cryogenic separation of carbon dioxide from hydrocarbons
01/29/1980US4185977 Separation from methane and olefins
01/22/1980US4184322 Production of synthesis gas from hydrocarbon fuels, noncatalytic, multistage, multizonal
01/15/1980CA1069817A1 Low temperature process for separating propane and heavier hydrocarbons from a natural gas stream
01/01/1980US4181174 Heat exchangers
12/1979
12/27/1979WO1979001167A1 Cryogenic apparatus and method of removing freezing impurities from a cryogenic fluid
12/25/1979US4180123 Mixed-component refrigeration in shell-tube exchanger
12/25/1979US4179897 Liquefaction
12/04/1979US4176713 Plate-type heat exchanger
11/1979
11/06/1979USRE30140 Method for cooling a gaseous mixture to a low temperature
10/1979
10/23/1979US4171964 Hydrocarbon gas processing
09/1979
09/11/1979US4167402 Ethylene separation process
08/1979
08/14/1979US4164452 Pressure responsive fractionation control
08/14/1979US4164451 Demethanization of natural gas
08/07/1979US4163652 Refrigerative fractionation of cracking-gases in ethylene production plants
07/1979
07/31/1979CA1059425A1 Process for manufacturing liquefied methane
06/1979
06/19/1979US4158556 Low temperature rectification
06/12/1979US4157905 Heat-exchanger trays and system using same
06/12/1979US4157904 Cooling at high pressure
05/1979
05/22/1979US4155729 Liquid flash between expanders in gas separation
05/15/1979US4154294 Enhanced condensation heat transfer device and method
05/15/1979CA1054509A1 Ethylene production with utilization of lng refrigeration
05/08/1979CA1054048A1 Process for isentropic expansion of gases
05/01/1979US4152130 Compressed air expands and cools system through heat exchanger
05/01/1979US4152129 Method for separating carbon dioxide from methane
05/01/1979CA1053568A1 Process for the liquefaction of natural gas
04/1979
04/24/1979US4150962 Pretreatment of raw natural gas prior to liquefaction
04/24/1979US4150548 Air pollution control
04/17/1979US4149864 High pressure, low temperature
03/1979
03/13/1979CA1050414A1 Natural gas thermal extraction process and apparatus
03/13/1979CA1050413A1 Process for cooling a gaseous mixture and plant therefor
03/06/1979US4142876 Recovery of natural gas liquids by partial condensation
02/1979
02/27/1979CA1049559A1 Recovery of acrylonitrile or methacrylonitrile by condensation
02/20/1979US4140504 Hydrocarbon gas processing
02/13/1979CA1048398A1 Hydrocarbon gas processing
02/13/1979CA1048397A1 Hydrocarbon gas processing
02/13/1979CA1048396A1 Method and apparatus with a single rectifying column for air fractionation
01/1979
01/30/1979US4137056 Process for low-temperature separation of air
01/30/1979CA1047387A1 Separation of liquid hydrocarbons from natural gas
01/30/1979CA1047386A1 Refrigerative fractionation of cracking-gases in ethylene production plants
01/09/1979US4133663 Heat exchanging, condensation/physical/
01/09/1979US4133662 Separation from air, compression
01/09/1979CA1045967A1 Adsorption-distillation system for separation of radioactive krypton and xenon
12/1978
12/05/1978US4128410 Natural gas treatment
12/05/1978US4128409 Chlorine recovery process
11/1978
11/28/1978US4127163 Freezer-sublimer for gaseous diffusion plant
11/07/1978US4124496 High pressure, multistage flashing
11/07/1978US4124069 Heat exchanger with spirally wound sheets
10/1978
10/24/1978US4121917 Liquefied natural gas
10/24/1978CA1041004A1 Separation of carbon dioxide and other acid gas components from hydrocarbon feeds
10/24/1978CA1041003A1 Hydrocarbon gas processing
10/17/1978CA1040525A1 Chlorine recovery process
09/1978
09/26/1978US4116821 Method and apparatus for processing a petroleum production stream
09/26/1978US4116270 Tubular coiled heat exchanger and device for manufacturing same
09/19/1978US4115086 Recovery of light hydrocarbons from refinery gas
09/12/1978US4112700 Heat exchanging
08/1978
08/29/1978US4110091 Process for the separation of a gaseous mixture consisting of water vapor, hydrocarbons, and air
07/1978
07/25/1978US4102659 Hydrogen, carbon monoxide; countercurrent absorption
07/18/1978US4101375 Distillation of liquified natural gas source halium, use as nuclear reactor coolant
07/11/1978US4099945 Efficient air fractionation