Patent · US Expired

Process for reducing the organic sulfur content of char

US4155715A · kind A · utility

3Cited by

3References

3Claims

0Family size

Assignee

Occidental Petroleum · US

Inventors

Allan Sass · Los Angeles, US
Hans Bauer · Dana Point, US
Norman W. Green · Upland, US

Key dates

Filing date	Sep 6, 1977
Grant date	May 22, 1979
Priority date	—
Expiry date	Sep 6, 1997

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC10L9/00
WIPO fieldBasic materials chemistry
WIPO sectorChemistry

Abstract

This invention covers an improved hydrodesulfurization process which significantly reduces the organic sulfur content of char by first magnetically or electrostatically removing iron sulfides and precursors of iron sulfides from char and then hydrodesulfurizing the remaining char.

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