Patent · US Expired

Fuel composition containing a medium substantially free of sulphur and process thereof

US7402186B2 · kind B2 · utility

4Cited by
5References
6Claims
0Family size

Assignee

Inventors

Key dates

Filing dateFeb 9, 2004
Grant dateJul 22, 2008
Priority date
Expiry dateNov 6, 2025

Classification

  • Technology area (CPC C)Chemistry; Metallurgy
  • CPC primaryC10L1/2383
  • WIPO fieldBasic materials chemistry
  • WIPO sectorChemistry

Abstract

A fuel composition contains (a) a medium substantially free of to free of sulphur; (b) a detergent/dispersant additive; and (c) a liquid fuel where the medium substantially free of to free of sulphur is an aliphatic hydrocarbon solvent, and where the aliphatic hydrocarbon solvent is present from at least about 50 wt % to about 100 wt % of the total amount of the medium. The fuel composition is prepared by a process and is useful in a process, where the fuel composition includes a medium that is a hydrocarbon or a nonhydrocarbon or a mixture thereof, to increase the efficiency of an exhaust after-treatment device of an internal combustion engine.

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