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  • 62: REFRIGERATION
    • 62/928: Recovery of carbon dioxide
      • 62/929: From natural gas

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Single column distillative separation employing bottom additives U.S. Patent US5345772 | Filed: 05/14/1993 | Issued: 09/13/1994 Assignee(s): Process Systems International, Inc. | Inventor(s): Richard B. Hopewell | Agent(s): Richard P. Crowley A method for the distillative separation of hydrocarbon feed stream such as a carbon dioxide-containing feed stream in a single distillation column into a vapor carbon dioxide product stream and a ...

Cryogenic helium production system U.S. Patent US5329775 | Filed: 12/04/1992 | Issued: 07/19/1994 Assignee(s): Praxair Technology, Inc. | Inventor(s): Brian C. Fiedler + 2 | Agent(s): Stanley Ktorides A cryogenic helium production system wherein a feed which includes carbon dioxide is processed in a dual temperature system including an upstream higher temperature and higher pressure column or de...

Process for solids waste landfill gas treatment and separation of methane and carbon dioxide U.S. Patent US5642630 | Filed: 01/16/1996 | Issued: 07/01/1997 Inventor(s): Fawzy T. Abdelmalek + 1 | Agent(s): Peoples, Hale & Coleman Waste landfill gases are treated and separated by a combination of gas cleaning, gas compression, gas cooling, and gas absorption processes to produce high quality liquefied natural gas, liquefied ...

Membrane process for producing carbon dioxide U.S. Patent US6085549 | Filed: 04/08/1998 | Issued: 07/11/2000 Assignee(s): Messer Griesheim Industries, Inc. | Inventor(s): Paul A. Daus + 3 | Agent(s): Carr & Storm, L.L.P. A process for producing carbon dioxide from a gas stream containing same pretreats the incoming raw gas to remove contaminants and particularly to protect degradation of the membranes utilized for ...

Distillative separation employing bottom additives U.S. Patent USRE32068 | Filed: 02/22/1985 | Issued: 01/21/1986 Assignee(s): Koch Process Systems, Inc. | Inventor(s): James M. Ryan + 1 | Agent(s): Richard P. Crowley An improved method for the distillation of a feed stream containing hydrocarbon components, which method is directed toward the production of a bottom product stream and an overhead product stream,...

Gravitational separation of solids from liquefied natural gas U.S. Patent US4001116 | Filed: 03/05/1975 | Issued: 01/04/1977 Assignee(s): Chicago Bridge & Iron Company | Inventor(s): Yuksel Ali Selcukoglu | Agent(s): Merriam, Marshall, Shapiro & Klose A gravitational separator for separating solids from liquefied natural gas having a closed tank having a conical lower portion angled at least 60.degree. from the horizontal and terminating at the ...

Distillative separations of gas mixtures containing methane, carbon dioxide and other components U.S. Patent US4462814 | Filed: 03/18/1983 | Issued: 07/31/1984 Assignee(s): Koch Process Systems, Inc. | Inventor(s): Arthur S. Holmes + 1 | Agent(s): Richard P. Crowley Distillative separations of hydrocarbon feed mixtures containing at least methane and carbon dioxide, as well as other components, such as ethane, higher hydrocarbons, and hydrogen sulfide are disc...

Process of separating acid gases from hydrocarbons U.S. Patent US4374657 | Filed: 06/03/1981 | Issued: 02/22/1983 Assignee(s): Fluor Corporation | Inventor(s): Ronald L. Schendel + 1 | Agent(s): Lyon & Lyon A process of separating acid gases consisting of carbon dioxide and/or hydrogen sulfide from hydrocarbons is disclosed. Methane is first separated from the hydrocarbon stream to produce a substanti...

Distillative separation employing bottom additives U.S. Patent US4428759 | Filed: 01/14/1983 | Issued: 01/31/1984 Assignee(s): Koch Process Systems, Inc. | Inventor(s): James M. Ryan + 1 | Agent(s): Richard P. Crowley An improved method for the distillation of a feed stream containing hydrocarbon components, which method is directed toward the production of a bottom product stream and an overhead product stream,...

Liquid carbon dioxide recovery from gas mixtures with methane U.S. Patent US4704146 | Filed: 07/31/1986 | Issued: 11/03/1987 Assignee(s): Kryos Energy Inc. | Inventor(s): Stephen J. Markbreiter + 1 | Agent(s): Paul W. Garbo Land-fill and other gases containing principally methane and carbon dioxide have been separated into high BTU fuel gas and discard carbon dioxide containing appreciable methane. Such discard gas ca...

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