Patent · US Expired

Method for operating a coal-fired power plant

US5517930A · kind A · utility

12Cited by

5References

13Claims

0Family size

Assignee

STEAG GmbH · DE

Inventors

Hermann Farwick · Dinslaken, DE
Albert Riepert · Wesel, DE

Key dates

Filing date	Mar 3, 1994
Grant date	May 21, 1996
Priority date	—
Expiry date	Mar 3, 2014

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY02A50/20
WIPO fieldChemical engineering
WIPO sectorChemistry

Abstract

A method for operating a coal-fired power plant with a dry-firing furnace includes the steps of supplying coal as a fuel and adding a Ca-containing substance to the coal. The amount of Ca-containing substance is adjusted such that such that after addition of a CaO contents of at least 0.3% is obtained. The coal with the added Ca-containing substance is burned in the dry-firing furnace whereby a flue gas is produced. The flue gas is guided through a NO.sub.x removal device, an air preheater, a particle separator, and a desulfurization device.

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