Patent · US Active

Process and apparatus for the combustion of sulfur

US8043597B2 · kind B2 · utility

5Cited by

5References

15Claims

0Family size

Assignee

Outotec Oyj · FI

Inventors

Karl-Heinz Daum · Mainz, DE
Wolf-Christoph Rauser · Frankfurt am Main, DE
Wolfram Schalk · Bad Homburg vor der Höhe, DE

Key dates

Filing date	Feb 9, 2007
Grant date	Oct 25, 2011
Priority date	—
Expiry date	Mar 1, 2027

Classification

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

Abstract

A process for a combustion of sulfur with an oxygen-containing gas to produce sulfur dioxide. The process includes introducing the sulfur and the oxygen-containing gas to a furnace. The sulfur is evaporated and subsequently a portion of the sulfur is oxidized to sulfur dioxide under sub-stoichiometric conditions in a first portion of the furnace. The sulfur dioxide formed in the first furnace portion is introduced together with any unoxidized sulfur to a second portion of the furnace which is disposed adjacent to the first furnace portion. The sulfur dioxide and unoxidized sulfur are subjected to post-combustion with the oxygen-containing gas in an inlet of a downstream waste heat boiler.

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