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:
Nov. 01, 2011
Filed:
Apr. 08, 2009
Jianzhong Yang, Missouri City, TX (US);
Joseph J. Arensdorf, Oak Ridge North, TX (US);
Melanie V. Barker, League City, TX (US);
Jianzhong Yang, Missouri City, TX (US);
Joseph J. Arensdorf, Oak Ridge North, TX (US);
Melanie V. Barker, League City, TX (US);
Baker Hughes Incorporated, Houston, TX (US);
Abstract
Mercaptans and/or hydrogen sulfide (HS) in hydrocarbons, naphthas, gasolines, and the like may be scavenged therefrom by being brought into intimate contact with a mercaptan scavenger formulation containing at least one disubstituted azodicarboxylate of the formula ROOCN═NCOOR, where Rand Rare independently alkyl groups, alkenyl groups and aromatic groups having from 1 to 18 carbon atoms. These scavengers remove mercaptans and/or HS from hydrocarbons faster than many conventional mercaptan scavengers. An effective scavenging amount of disubstituted azodicarboxylate in the hydrocarbon fluid ranges from about 5 to about 20 parts by weight based on 1 part as sulfur of mercaptan and/or HS.