Patent · US Expired

Process for low temperature carbonization of hydrogenation residues

US4512873A · kind A · utility

9Cited by

3References

10Claims

0Family size

Assignee

Veba Oel Entwicklungs-Gesellschaft mbH · DE

Inventors

Gert Escher · Gelsenkirchen, DE
Rolf Holighaus · Haltern, DE
Hans-Peter Wenning · Raesfeld, DE

Key dates

Filing date	Jan 6, 1984
Grant date	Apr 23, 1985
Priority date	—
Expiry date	Jan 6, 2004

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC10G1/02
WIPO fieldBasic materials chemistry
WIPO sectorChemistry

Abstract

The residues obtained in the hydrogenation of oil, especially heavy oil, or of coal are subjected to low temperature carbonization in a drum, preferably a rotary drum, at temperatures between approximately 400.degree. C. and approximately 600.degree. C., by means of a carbonization gas after the separation of the condensable portions and heating to temperatures between approximately 600.degree. C. and approximately 950.degree. C. which is introduced into the low temperature carbonization drum. The gas is heated to temperatures between approximately 600.degree. C. and approximately 950.degree. C. indirectly by flue gases arising from the combustion of oil or gas, for example, of excess carbonization gas. The residue to be carbonized at low temperature is introduced into the hot gas in a finely dispersed state and preferably atomized.

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