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:
Jan. 15, 2019
Filed:
Feb. 05, 2016
Applicant:
Chevron U.s.a. Inc., San Ramon, CA (US);
Inventors:
Dennis John O'Rear, Petaluma, CA (US);
Russell Evan Cooper, Martinez, CA (US);
Shabbir Husain, Emeryville, CA (US);
Assignee:
Chevron U.S.A. Inc., San Ramon, CA (US);
Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C10G 21/00 (2006.01); C10G 21/08 (2006.01); C04B 18/04 (2006.01); C10G 21/28 (2006.01); E21B 43/40 (2006.01);
U.S. Cl.
CPC ...
C10G 21/08 (2013.01); C04B 18/0472 (2013.01); C10G 21/28 (2013.01); E21B 43/40 (2013.01); C10G 2300/205 (2013.01);
Abstract
A method is provided for recovering mercury from a crude oil into an alkaline ammonium sulfide contacting solution. Soluble mercury complexes in the contacting solution are converted to particulate mercury. The particulate mercury can be recovered by filtering, and the ammonium sulfide in the contacting solution recycled to the aqueous contacting solution.