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:
Jun. 10, 2025
Filed:
Jul. 06, 2021
Exxonmobil Technology and Engineering Company, Annandale, NJ (US);
Carla S. Pereira, Bridgewater, NJ (US);
Jenny P. Seagraves, Spring, TX (US);
P. Scott Northrop, Lexington, KY (US);
Michael Siskin, Westfield, NJ (US);
Thomas Ingram, Mannheim, DE;
Gerald Vorberg, Speyer, DE;
Martin Ernst, Heidelberg, DE;
Georg K. Sieder, Bad Duerkheim, DE;
ExxonMobil Technology & Engineering Company, Annandale, NJ (US);
Abstract
Capture of hydrogen sulfide from a gas mixture may be accomplished using an aqueous solution comprising an amine. Certain sterically hindered amines may selectively form a reaction product with hydrogen sulfide under kinetically controlled contacting conditions and afford a light phase and a heavy phase above a critical solution temperature, wherein the hydrogen sulfide may be present in either phase. Upon separation of the light phase from the heavy phase, processing of one of the phases may take place to remove hydrogen sulfide therefrom. Recycling of the amine to an absorber tower may then take place to promote capture of additional hydrogen sulfide.