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:
Nov. 08, 2022
Filed:
Apr. 29, 2021
Baker Hughes Oilfield Operations Llc, Houston, TX (US);
Sai Reddy Pinappu, Sugar Land, TX (US);
Jerry J. Weers, Richmond, TX (US);
Baker Hughes Oilfield Operations LLC, Houston, TX (US);
Abstract
A regeneration solvent comprised of one or more ethylene amines may contact an adsorbent bed that has been used to remove sulfur compounds from a hydrocarbon stream to extract adsorbed sulfur compounds from the adsorbent material in the bed to regenerate it. The one or more ethyleneamines may have structure (I), (II), or (III): where R, R, Rand Rare, to the extent chemically possible, independently H, C-Clinear or branched alkyl, amido (RRNC═O), or hydroxyalkyl, where each R in the amido group is independently H or Calkyl, where Rand Rare alkylene of from 1 to 4 carbon atoms, where x ranges from 0 to 3, y ranges from 1 to 6. The regenerated adsorbent bed may be reused, either alone or in combination with a liquid-liquid extraction column, to remove sulfur compounds from a hydrocarbon stream.