Patent · US Expired

Process for reduction of sulfur dioxide to sulfur

US4117100A · kind A · utility

20Cited by

7References

20Claims

0Family size

Assignee

Davy Powergas, Inc. · US

Inventors

Lars Hellmer · Regen, DE
Gerald Koller · Cologne, DE
Ghazi Rashid Al Muddarris · Cologne, DE
Kuldip Kumar Sud

Key dates

Filing date	Mar 29, 1977
Grant date	Sep 26, 1978
Priority date	—
Expiry date	Mar 29, 1997

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY02P20/129
WIPO fieldMaterials, metallurgy
WIPO sectorChemistry

Abstract

In accordance with the invention sulfur dioxide in sulfur dioxide-containing gases is converted under selective conditions to provide elemental sulfur in an efficient and economically-acceptable manner for present day industrial operations. The conversion involves the thermal reduction of sulfur dioxide in a zone at relatively moderate temperatures maintained by the combustion of carbonaceous fuel in the zone to provide elemental sulfur and to provide a gaseous thermal reduction effluent which is acceptable for further processing to recover additional sulfur values therefrom.

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