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:
Oct. 29, 2024
Filed:
Oct. 05, 2021
Applicant:
Conocophillips Company, Houston, TX (US);
Inventors:
Jay Locklear, Houston, TX (US);
David P. Cope, Houston, TX (US);
Assignee:
CONOCOPHILLIPS COMPANY, Houston, TX (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C10G 29/28 (2006.01); C11D 3/34 (2006.01);
U.S. Cl.
CPC ...
C10G 29/28 (2013.01); C11D 3/34 (2013.01); C10G 2300/202 (2013.01); C10G 2300/207 (2013.01); C10G 2300/4075 (2013.01);
Abstract
The invention relates to the dissolution of amorphous dithiazine (a-DTZ) or polythioformaldehyde or other polymeric by-products of the treatment of hydrocarbon products (a-DZT) to remove them from surfaces. These are solids that build up on surfaces of processing plant and are resistant to most chemical treatment. The treatment requires treating the surface with an effective amount of a mercaptan or an amine. Surfactants to keep the dissolved a-DTZ or other components from redepositing elsewhere are also described, as is the use of hydrogen sulfide to add in removal by mercaptans.