Patent · US Expired

Method for converting carbon-containing raw material into a combustible product gas

US4541841A · kind A · utility

68Cited by
1References
9Claims
0Family size

Assignee

Inventor

Key dates

Filing dateJun 15, 1983
Grant dateSep 17, 1985
Priority date
Expiry dateJun 15, 2003

Classification

  • Technology area (CPC C)Chemistry; Metallurgy
  • CPC primaryC10J2300/0986
  • WIPO fieldBasic materials chemistry
  • WIPO sectorChemistry

Abstract

Converting carbon-containing raw material, particularly coal, wood or crude oil, into a combustible product gas by a gasification reaction in the presence of a catalyst which is dissolved in the steam intended for the gasification reaction, forming a homogeneous gaseous solution. The ash-containing gasification residue is separated and the catalyst is extracted from the separated gasification residue by the steam intended for the gasification reaction at a temperature and a pressure, at which a homogeneous gaseous solution of the catalyst in steam is formed.

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