08146661 is referenced by 56 patents and cites 1144 patents.

Systems and methods of treating a gas stream are described. A method of treating a gas stream includes cryogenically separating a first gas stream to form a second gas stream and a third stream. The third stream is cryogenically contacted with a carbon dioxide stream to form a fourth and fifth stream. A majority of the second gas stream includes methane and/or molecular hydrogen. A majority of the third stream includes one or more carbon oxides, hydrocarbons having a carbon number of at least 2, one or more sulfur compounds, or mixtures thereof. A majority of the fourth stream includes one or more of the carbon oxides and hydrocarbons having a carbon number of at least 2. A majority of the fifth stream includes hydrocarbons having a carbon number of at least 3 and one or more of the sulfur compounds.

Title
Cryogenic treatment of gas
Application Number
12/250378
Publication Number
8146661 (B2)
Application Date
October 13, 2008
Publication Date
April 3, 2012
Inventor
Harold J Vinegar
Bellaire
TX, US
Albert Destrehan Harvey III
Kingwood
TX, US
Jose Luis Bravo
Houston
TX, US
Assignee
Shell Oil Company
TX, US
IPC
E21B 43/22
E21B 43/34
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