Patent · US Expired

Process of removing pollutants from exhaust gases

US4548797A · kind A · utility

35Cited by

12References

12Claims

0Family size

Assignee

Metallgesellschaft AG · DE

Inventors

Harald Sauer · Frankfurt am Main, DE
Hans-Werner Schmidt · Bayreuth, DE
Wolfgang Fennemann · Karben, DE

Key dates

Filing date	Sep 22, 1983
Grant date	Oct 22, 1985
Priority date	—
Expiry date	Sep 22, 2003

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10S423/16
WIPO fieldChemical engineering
WIPO sectorChemistry

Abstract

A process of removing pollutants from exhaust gases in a circulating fluidized bed, in which solids are circulated through a fluidized bed reactor, separated in a separator and returned via a return line, to the reactor. The exhaust gas is introduced as a fluidizing gas into a fluidized bed which consists of two solid fractions differing in particle size, namely, a coarse-grained fraction having a particle size d.sub.p 50 in the range of 150 to 500 microns and a fine-grained fraction having a particle size d.sub.p 50 below 10 microns.

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