ConocoPhillips
ELEMENTAL SULFUR DISSOLUTION AND SOLVATION
Last updated:
Abstract:
Methods for preventing elemental sulfur deposition from a hydrocarbon fluid is disclosed. A mercaptan is added to a hydrocarbon fluid that has elemental sulfur and reacted with the elemental sulfur to produce a disulfide and hydrogen sulfide. Amines and/or surfactants can assist with the process. Secondary reactions between the disulfide and the elemental sulfur result in a polysulfide and a solvated sulfur-disulfide complex. The disulfide, hydrogen sulfide, polysulfide and solvated sulfur-disulfide complex do not deposit, and can optionally be removed.
Status:
Application
Type:
Utility
Filling date:
5 Oct 2021
Issue date:
14 Apr 2022