Patent · US Active

Methods and compositions for removing sulfur from liquid hydrocarbons

US7566687B2 · kind B2 · utility

2Cited by
16References
8Claims
0Family size

Assignee

Inventors

Key dates

Filing dateOct 12, 2005
Grant dateJul 28, 2009
Priority date
Expiry dateJun 12, 2027

Classification

  • Technology area (CPC Y)Emerging Cross-Sectional Technologies
  • CPC primaryY10S507/939
  • WIPO fieldBasic materials chemistry
  • WIPO sectorChemistry

Abstract

Improved desulfurization compositions are provided for removing substantial fractions of sulfur, sulfur complexes, and sulfur compounds from liquid hydrocarbons such as crude oil and fuels. The preferred compositions comprise respective quantities of an alkylphenol ethoxylate, an amine, and an alkali metal nitrite. The compositions may be contacted with liquid hydrocarbons to achieve high levels of desulfurization.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.