Patent · US Active

Process for the production of carbonaceous adsorption agents doped with elementary sulfur and a process for waste gas cleaning using such adsorption agents

US8133304B2 · kind B2 · utility

0Cited by

5References

9Claims

0Family size

Assignee

RWE Power Aktiengesellschaft · DE

Inventors

Wolfgang Heschel · Freiberg, DE
Bernd Meyer · Freiberg, DE
Maik Werner · Freiberg, DE
Jurgen Wirling · Bad Mergentheim, DE

Key dates

Filing date	Apr 28, 2008
Grant date	Mar 13, 2012
Priority date	—
Expiry date	Oct 16, 2029

Classification

Technology area (CPC B)Performing Operations; Transporting
CPC primaryB01D2257/602
WIPO fieldChemical engineering
WIPO sectorChemistry

Abstract

The invention concerns a process for the production of carbonaceous adsorption agents doped with elementary sulfur, in which sulfur is mixed with the adsorption agent, the mixture is heated to a temperature of between 120° C. and 150° C. and the temperature is maintained over a period of about an hour. The process is distinguished in that heating of the mixture is effected under a controlled oxygen-bearing atmosphere. The invention further concerns a process for waste gas cleaning using carbonaceous absorption agents doped with elementary sulfur. Preferably brown coal coke is used as the adsorption agent.

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