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:
Feb. 07, 1989
Filed:
Jan. 28, 1987
Philip K Hodgson, Walton-on-Thames, GB;
Julie A McShea, Shepperton, GB;
Edward J Tinely, Farnham, GB;
The British Petroleum Company p.l.c., London, GB;
Abstract
Hydrogen sulphide is scavenged from a feedstock comprising crude oil and hydrogen sulphide by adding a compound of general formula: ##STR1## to the feedstock. X and Y are carbon or nitrogen atoms and the interatomic bond is triple or double as appropriate. Any two or more of R.sup.1 -R.sup.4 are organic groups containing electronegative functional groups. The remaining two or less of R.sup.1 -R.sup.4 are hydrocarbyl groups, hydrogen atoms or zero. Preferred scavengers include di-isopropylazo dicarboxylate and dimethylacetylene dicarboxylate.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile