Patent · US Expired

System and process for reactivating carbon

US4347156A · kind A · utility

8Cited by

5References

5Claims

0Family size

Assignee

Lurgi GmbH · DE

Inventors

Luis A. Lombana · Belmont, US
Daniel E. Myers · Vancouver, US
Orris E. Albertson · Salt Lake City, US

Key dates

Filing date	Feb 11, 1981
Grant date	Aug 31, 1982
Priority date	—
Expiry date	Feb 11, 2001

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC01B32/36
WIPO fieldMaterials, metallurgy
WIPO sectorChemistry

Abstract

There is provided a system for reactivating wet, spent carbon including a drying device to heat the carbon to drive moisture from the carbon as steam. A multiple-hearth furnace receives the carbon from the drying device, and the carbon is baked and reactivated therein. Reactivation is accomplished in the presence of steam, at least part of which is the steam which had been driven from the wet, spent carbon.

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