Patent · US Expired

Process for treating wastes and the like by low temperature carbonization and further processing of the low temperature carbonization oil

US4983782A · kind A · utility

13Cited by

7References

24Claims

0Family size

Assignee

Veba Oel Entwicklungs-Gesellschaft mbH · DE

Inventors

Ludwig Merz · Recklinghausen, DE
Klaus Niemann · Oberhausen, DE
Hans-Peter Wenning · Raesfeld, DE

Key dates

Filing date	Feb 27, 1989
Grant date	Jan 8, 1991
Priority date	—
Expiry date	Feb 27, 2009

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC10G47/00
WIPO fieldBasic materials chemistry
WIPO sectorChemistry

Abstract

Liquid phase hydrogenation of the liquid products of the low temperature carbonization of waste yields products which are free of polycyclic aromatic hydrocarbons and chlorinated hydrocarbons. The hydrogenation may be catalyzed by the low temperature coke produced in the low temperature carbonization.

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