The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Mar. 02, 1999
Filed:
Oct. 05, 1995
Applicant:
Inventor:
Craig Norman Schubert, Belle Mead, NJ (US);
Assignee:
Union Carbide Chemicals & Plastics Technology Corporation, Danbury, CT (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C07C / ; C01B / ;
U.S. Cl.
CPC ...
585860 ; 423228 ;
Abstract
A method and composition for treating liquefied petroleum gas containing acid gases such as H.sub.2 S, CO.sub.2, and COS to sweeten such liquefied petroleum gas by removal of a substantial portion of such acid gases while minimizing losses of amines due to solubility in LPG and enhancing CO.sub.2 slip, said method comprising contacting said liquefied petroleum gas with an absorbent mixture comprising an aqueous solution of TEA and at least another amine preferably selected from the group consisting of MEA, DEA, MDEA, DIPA, and mixtures thereof.