Gas separation: processes – Solid sorption – Inorganic gas or liquid particle sorbed
Reexamination Certificate
2008-07-08
2008-07-08
Lawrence, Frank M (Department: 1797)
Gas separation: processes
Solid sorption
Inorganic gas or liquid particle sorbed
C095S235000, C095S236000, C096S004000, C096S122000, C096S130000, C096S134000, C423S228000
Reexamination Certificate
active
11267715
ABSTRACT:
The present invention is directed to an improved integrated process for the removal of heavy hydrocarbons, carbon dioxide, hydrogen sulfide, and water from a raw natural gas feed stream. More specifically, the integrated process of the present invention comprises a three step process involving the adsorption of heavy hydrocarbons and water on an adsorbent bed selective for the same, a subsequent aqueous lean amine treatment for the absorptive removal of acid gases, such as carbon dioxide and hydrogen sulfide, and an adsorptive removal of water. The process of the present invention results in a highly purified dry natural gas product stream.
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BASF Catalysts LLC
Keller Raymond F.
Lawrence Frank M
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