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:
Apr. 22, 2014
Filed:
Sep. 16, 2010
Applicants:
Darrell L. Gallup, Houston, TX (US);
Sujin Yean, Houston, TX (US);
Inventors:
Darrell L. Gallup, Houston, TX (US);
Sujin Yean, Houston, TX (US);
Assignee:
Chevron U.S.A. Inc., San Ramon, CA (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C10G 21/16 (2006.01); C10G 21/24 (2006.01); C10G 21/00 (2006.01);
U.S. Cl.
CPC ...
C10G 21/16 (2013.01); C10G 21/24 (2013.01); C10G 21/00 (2013.01); C10G 2300/205 (2013.01); C10G 2300/44 (2013.01);
Abstract
Trace levels of heavy metals in fluids such as crude oil are reduced by contacting the crude oil with a composition comprising a compound of Formula (I), wherein X is an anion of valency n, the number of phosphonium cations present. In one embodiment, the composition further comprises a complexing additive comprising an amine or corresponding ammonium derivative. Upon contact with the crude oil, the heavy metals form soluble complexes with the compound of Formula (I) for subsequent removal from the crude oil via phase separation.