Patent · US Expired

Apparatus and method for operating the apparatus for continuously recovering sulfur from gas containing H2S

US7776308B2 · kind B2 · utility

0Cited by

6References

7Claims

0Family size

Assignee

Lurgi GmbH · DE

Inventors

Walter Boll · Frankfurt am Main, DE
Wofgang Nehb · Frankfurt am Main, DE
Eckhard Jungst · Villefontaine, FR

Key dates

Filing date	Mar 18, 2006
Grant date	Aug 17, 2010
Priority date	—
Expiry date	Mar 18, 2026

Classification

Technology area (CPC B)Performing Operations; Transporting
CPC primaryB01J2219/182
WIPO fieldChemical engineering
WIPO sectorChemistry

Abstract

In an apparatus for continuously recovering sulfur from a gas stream containing 0.1 to 3.0 vol-% H2S, further gaseous sulfur compounds and sulfur, the gas stream first is passed over a reduction stage consisting of hydrogenation catalyst and then over a selective oxidation stage consisting of oxidation catalyst. To reduce the amount of apparatus involved, it is provided to arrange the reduction stage and the selective oxidation stage in a reaction tank and to leave a space for introducing a gaseous cooling medium into the gas stream between the two stages.

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