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)
11/1989
11/29/1989EP0343421A1 Ultra pure liquid oxygen cycle
11/28/1989US4883519 Recovery from a gas stream through a recycling process
11/28/1989US4883518 Process for air fractionation by low-temperature rectification
11/28/1989US4883517 Air separation
11/28/1989US4883516 Air separation
11/23/1989EP0343065A1 Method of producing nitrogen gas
11/23/1989EP0342436A2 Low-temperature air separation process
11/23/1989DE3815866A1 Process for purifying a crude gas for the ammonia synthesis by means of a nitrogen scrub
11/21/1989US4881960 Scrubbing
11/21/1989CA1263085A1 Method and apparatus for cryogenic fractionation of a gaseous feed
11/16/1989DE3816401A1 Process for purifying raw gas for ammonia synthesis
11/15/1989EP0341879A1 Hydrogen and carbon dioxide coproduction
11/15/1989EP0341854A1 Air separation process using packed columns for oxygen and argon recovery
11/15/1989EP0341512A1 Control method to maximize argon recovery from cryogenic air separation units
11/09/1989DE3814293A1 Process for recovering carbon monoxide
11/09/1989DE3814187A1 Method for air fractionation by cryogenic rectification
11/09/1989DE3813976A1 Process for recovering a helium-rich helium/hydrogen mixture
11/08/1989EP0340465A2 Hydrocarbon separation process
11/08/1989EP0195065B1 Nitrogen production by low energy distillation
11/07/1989US4878932 Heat exchanging
11/07/1989US4878931 Two stage vapor recovery system
11/07/1989EP0338022A4 Air partial expansion refrigeration for cryogenic air separation.
11/02/1989EP0333384A2 Air separation
11/02/1989EP0241817B1 Process and apparatus for the production of nitrogen
10/1989
10/25/1989EP0338022A1 Air partial expansion refrigeration for cryogenic air separation.
10/25/1989CN1036544A Industrial process for separation and recovery of chlorine
10/18/1989EP0337150A1 Structured column packing with liquid holdup
10/17/1989US4874592 Adsorption, desorption liquid oxygen mixture
10/12/1989DE3811132A1 Separation of nitrogen from CO2-containing natural gas
10/11/1989CN1005381B Separation co2 from other gas of mixture
10/10/1989US4872893 Process for the production of high pressure nitrogen
10/03/1989US4871382 Structured packing in the low pressure and argon sidearm columns of a three column distillation system
09/1989
09/28/1989DE3908505A1 Process for producing liquid pig iron in a smelting gasifier
09/27/1989EP0334114A2 Membrane process for hydrocarbon liquid recovery
09/26/1989US4869742 High and low pressure distillation
09/26/1989US4869741 Cryogenic distillation
09/26/1989US4869740 Hydrocarbon gas processing
09/26/1989EP0318564A4 Enhanced argon recovery from intermediate linboil.
09/26/1989CA1261588A1 Ammonia synthesis
09/19/1989US4867773 Separation of air
09/19/1989US4867772 Distillation
09/19/1989CA1259500A1 Parallel wrapped tube heat exchanger
09/13/1989CN1035440A Processing nitrogen-rich, hydrogen-rich, and olefin-rich gases with physical solvents
09/06/1989EP0331028A1 Process for the purification of crude argon
08/1989
08/29/1989US4861369 Process for gaining electric energy in addition to producing molten pig iron and an arrangement for carrying out the process
08/29/1989US4861361 Cryogenic distillation to separate, pressure swing adsorption, gas diffusion zone
08/29/1989US4861360 Carbon dioxide absorption methanol process
08/22/1989USRE33026 Process and device for vaporizing a liquid by heat exchange with a second fluid and their application in an air distillation installation
08/16/1989EP0328239A1 Air separation
08/16/1989EP0328112A2 Double column air separation apparatus and process with hybrid upper column
08/10/1989WO1989007229A1 Optimized intermediate height reflux for multipressure air distillation
08/08/1989US4854955 Separation
08/08/1989US4854954 Rectifier liquid generated intermediate reflux for subambient cascades
08/02/1989EP0325956A2 Process for cleaning a gaseous mixture
08/01/1989US4853015 Cryogenic liquefaction of compressed air
07/1989
07/27/1989DE3801712A1 Process for purifying a gas mixture
07/25/1989US4851020 From natural gas
07/18/1989US4848996 Nitrogen generator with waste distillation and recycle of waste distillation overhead
07/18/1989CA1257535A1 Separation of co.sub.2 from a gaseous mixture
07/18/1989CA1257460A1 Cascade heat recovery with coproduct gas production
07/11/1989US4846863 Methane separation, distillation
07/04/1989US4843828 Distillation, heat exchanging
06/1989
06/27/1989US4842625 Control method to maximize argon recovery from cryogenic air separation units
06/22/1989DE3741906A1 Process for isolating H2 and CO
06/21/1989EP0321163A2 Separating argon/oxygen mixtures
06/21/1989EP0320885A2 Suitable distillation packing for the cryogenic separation of air
06/21/1989EP0315645A4 Air distillation improvements for high purity oxygen.
06/21/1989EP0313581A4 Nitrogen partial expansion refrigeration for cryogenic air separation.
06/14/1989EP0306518A4 Production of high purity oxygen with low energy and increased delivery pressure.
06/14/1989EP0235295B1 Oxygen gas production unit
06/13/1989US4838913 Reduced feed compression; crude argon recovery
06/13/1989US4838912 Method and apparatus for the purification and recirculation of gases
06/13/1989CA1255583A1 Gas-liquid contact apparatus and method of making it
06/07/1989EP0318564A1 Enhanced argon recovery from intermediate linboil.
06/07/1989EP0318504A1 Process for separating higher hydrocarbons from a gas mixture.
06/06/1989US4836836 Separating argon/oxygen mixtures using a structured packing
06/01/1989WO1989004942A1 Air fractionation improvements for nitrogen production
05/1989
05/31/1989EP0317851A2 Process and apparatus for separating a gas mixture
05/30/1989US4834785 Cryogenic nitrogen generator with nitrogen expander
05/24/1989EP0316768A2 Air separation process by low temperature rectification
05/24/1989EP0316478A1 Process for recovery and purification of c3-c4+ hydrocarbons using segregated phase separation and dephlegmation
05/23/1989US4832719 Enhanced argon recovery from intermediate linboil
05/23/1989US4832718 Processing nitrogen-rich, hydrogen-rich, and olefin-rich gases with physical solvents
05/18/1989WO1989004444A1 Process for liquefying, concentrating and purifying nitrogen trifluoride
05/17/1989EP0315645A1 Air distillation improvements for high purity oxygen.
05/16/1989CA1254126A1 Integrated gas separation process
05/09/1989CA1253818A1 Purification of carbon dioxide for use in brewing
05/09/1989CA1253787A1 Process for recovery and purification of c.sub.3- c in4 xxhydrocarbons using segregated phase separation and dephlegmation
05/03/1989EP0313883A2 Hydrogen-carbonmonoxide separation process using partial condensation at low temperatures
05/03/1989EP0313581A1 Nitrogen partial expansion refrigeration for cryogenic air separation.
05/02/1989CA1253430A1 Process and apparatus for fractionation of a gaseous mixture
04/1989
04/26/1989EP0191098B1 Low energy high purity oxygen plus argon
04/25/1989US4824453 Process and apparatus for air separation by rectification
04/18/1989US4822395 Air separation process and apparatus for high argon recovery and moderate pressure nitrogen recovery
04/18/1989US4822394 On site wet oxidation of municipal wastes producing carbon dioxide
04/18/1989US4822393 Natural gas pretreatment prior to liquefaction
04/11/1989CA1252298A1 Gas turbine and steam power-generating plant with integrated coal gasification plant
04/06/1989WO1989003009A1 Processing nitrogen-rich, hydrogen-rich, and olefin-rich gases with physical solvents
04/06/1989DE3732364A1 Method and device for air fractionation
04/06/1989DE3732363A1 Method and device for restarting a gas fractionation plant
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