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:
Dec. 20, 2016
Filed:
Sep. 09, 2014
Applicants:
Dennis John O'rear, Petaluma, CA (US);
Russell Evan Cooper, Martinez, CA (US);
Inventors:
Dennis John O'Rear, Petaluma, CA (US);
Russell Evan Cooper, Martinez, CA (US);
Assignee:
Chevron U.S.A. Inc., San Ramon, CA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C10G 7/00 (2006.01); C10G 29/02 (2006.01); C10G 29/10 (2006.01); C10G 29/28 (2006.01);
U.S. Cl.
CPC ...
C10G 29/02 (2013.01); C10G 7/00 (2013.01); C10G 29/10 (2013.01); C10G 29/28 (2013.01); C10G 2300/205 (2013.01); C10G 2300/206 (2013.01);
Abstract
Mercury in distilled products from a distillation column is removed and extracted as soluble mercury compounds with the injection of a complexing agent into the overhead sections of the column. Examples of complexing agents include polysulfides such as sodium polysulfide or ammonium polysulfide. In one embodiment, the complexing agent is injected into the inlet pipe just before the overhead condenser, converting the volatile elemental mercury into a species that is soluble in the sour water stream that collected in the overhead sections.