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:
Jul. 31, 1979
Filed:
Mar. 08, 1978
Applicant:
Inventors:
Claude Blanc, Pau, FR;
Jean-Yves Chenard, Pau, FR;
Jean-Jacques Delpuech, Laxou, FR;
Olivier Oliveau, Lescar, FR;
Assignee:
Societe Nationale Elf Aquitaine (Production), Paris, FR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B01D / ;
U.S. Cl.
CPC ...
55 73 ;
Abstract
The present invention is related to a process for absorbing acid gases from industrial gaseous mixtures by washing under pressure with a solvent. The invention is concerned more particularly with the use of hexamethyl phosphorotriamide OP[N(CH.sub.3).sub.2 ].sub.3, pure or mixed with water, as a physical solvent of acid gases. This new physical solvent is of particular interest in the treatment of natural acid gases and refinery gases.