Patent · US Expired

Process oil manufacturing process

US4801373A · kind A · utility

31Cited by
25References
20Claims
0Family size

Assignee

Inventors

Key dates

Filing dateMar 18, 1986
Grant dateJan 31, 1989
Priority date
Expiry dateMar 18, 2006

Classification

  • Technology area (CPC Y)Emerging Cross-Sectional Technologies
  • CPC primaryY10S208/01
  • WIPO fieldBasic materials chemistry
  • WIPO sectorChemistry

Abstract

An improved method for producing a hydrotreated oil from a naphthenic feed is described. The process comprises passing the naphthenic feed through the multistage hydrotreating process with intermediate removal of hydrogen sulfide and/or ammonia.

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