Community Research and Development Information Service - CORDIS

Abstract

The contract was carried through in the framework of the energy demonstration programme. The aim of the project was the development and construction of a WALTHER flue gas desulphurization demonstration plant according to the WALTHER wastewater- free principle including start-up and test operation of the plant, in order to prove that the WALTHER desulphurization process allows reheating of the cleaned gases as well as spray drying of the ammonium sulphate solution produced during the scrubbing stage, by utilizing the waste heat of the flue gases without need for additional energy. After an operating period of two years it may be said that the flue gas desulphurization plant on the basis of the Walther process in the power station at Mannheim has come up to expectation regarding cleaning effectivity and up to expectation regarding cleaning effectivity and up to expectation regarding cleaning effectivity and endproduct quality of the final product which is utilized as fertilizer. Thus, several different SO-2 contents were reached which are clearly below the guaranteed value of 180 mg/Nm**3 dry. Due to reheating the scrubbed flue gases by means of a regenerative heat exchanger, approximately 1 800 kg/h EL fuel oil could be saved in full-load operation. Difficulties occurred almost exclusively in the "conventional" parts of the plant and can be explained by the flowability of the ammonium sulphate powder.

Additional information

Authors: FISCHER J, WALTHER & CIE. AG, KOELN, DELLBRUECK (GERMANY);SCHULTE W WALTHER & CIE. AG, KOELN, DELLBRUECK (GERMANY), WALTHER & CIE. AG, KOELN, DELLBRUECK (GERMANY)
Bibliographic Reference: EUR 10501 EN/DE (1986) FS, 216 P., BFR 700, EUROFFICE, LUXEMBOURG, POB 1003
Availability: Can be ordered online
Record Number: 1989125035400 / Last updated on: 1987-04-01
Category: PUBLICATION
Available languages: de,en