1
Arthur S Holmes, James M Ryan: Distillative separations of gas mixtures containing methane, carbon dioxide and other components. Koch Process Systems, Richard P Crowley, July 31, 1984: US04462814 (96 worldwide citation)

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 disclosed. In the separations described, methane is preferably separated from an acid gas under conditions ...


2
John V O Brien, Arthur S Holmes, Richard B Hopewell: Process for the separation of landfill gas. Koch Process Systems, Richard P Crowley, July 21, 1987: US04681612 (90 worldwide citation)

A recycle process for the separation of landfill gas containing a wide variety of impurities into a carbon dioxide product stream and a fuel-grade-pressurized methane product stream, the process providing for the removal of both the impurities and the carbon dioxide in a cryogenic column as a bottom ...


3
Arthur S Holmes, James M Ryan: Cryogenic distillative separation of acid gases from methane. Koch Process Systems, Hamilton Brook Smith and Reynolds, March 9, 1982: US04318723 (77 worldwide citation)

A method of eliminating solids formation in a cryogenic distillative separation of acid gases from methane is disclosed. This method comprises adding a solids-preventing agent to the solids potential zone of the distillation column. Typical solids-preventing agents are one or more C.sub.2 -C.sub.5 a ...


4
Arthur S Holmes, James M Ryan: Distillative separation of carbon dioxide from light hydrocarbons. Koch Process Systems, Richard P Crowley, September 21, 1982: US04350511 (54 worldwide citation)

An improved distillative separation of carbon dioxide and light hydrocarbons is disclosed in which the formation of an azeotrope between these components is prevented by addition of an agent to said distillation column and in which prevention of the azeotrope allows a more complete separation to be ...


5
James M Ryan, Arthur S Holmes: Distillative separation of carbon dioxide from hydrogen sulfide. Helix Technology Corporation, Hamilton Brook Smith and Reynolds, October 6, 1981: US04293322 (15 worldwide citation)

A distillative separation of carbon dioxide and hydrogen sulfide is improved by adding a C.sub.3 -C.sub.6 alkane, a mixture of C.sub.3 -C.sub.6 alkanes, SO.sub.2 or SO.sub.3 to a distillation column to increase the relative volatility of carbon dioxide to hydrogen sulfide. Increasing the relative vo ...


6
James M Ryan, Arthur S Holmes: Distillative separation of carbon dioxide from hydrogen sulfide. Koch Process Systems, Richard P Crowley, May 17, 1983: US04383841 (9 worldwide citation)

A distillative separation of carbon dioxide and hydrogen sulfide is improved by adding a C.sub.3 -C.sub.6 alkane, a mixture of C.sub.3 -C.sub.6 alkanes, SO.sub.2 or SO.sub.3 to a distillation column to increase the relative volatility of carbon dioxide to hydrogen sulfide. Increasing the relative vo ...



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