FLUE GAS DESULPHURIZATION BY THE ISPRA MARK-13A PROCESS IN AN EXPERIMENTAL 50 KWT COAL FIRED FURNACE
The Ispra Mark 13A process for flue gas desulphurisation is a new process where sulphur dioxide is converted into sulphuric acid by reaction with a dilute bromine solution. The bromine is subsequently regenerated by electrolysis. The process thus does not consume reagents, it produces hydrogen and sulphuric acid, both valuable products and it does not generate waste solids or liquids. The present report describes the results of a test campaign at an experimental coal fired furnace at the site of the CRTN/ENEL at Livorno. The experimental work consisted of three long test runs performed with different mixtures of powdered coal from the U.S. (MacCall) and Sulcis. The flue gas glow rate was 9.5 m**3/h and the sulphur dioxide content of the untreated flue gas varied between 500 and 4600 ppm. The degree of desulphurisation was 90-95% and in spite of temporary very severe inlet conditions the process performed very well. The sulphuric acid produced is of satisfactory purity and concentration. The presence of fly ash, nitrogen oxides and halogenides in the flue gas did not lead to adverse effects in the process behaviour. It can be concluded that the Ispra Mark 13A process can be operated successfully for long periods with flue gases from a coal-fired furnace.
Bibliographic Reference: XL CONGRESSO NAZIONALE DELL'ASSOCIAZIONE TERMOTECNICO ITALIANA, TRIESTE (ITALY) SEPT 10-14, 1985 WRITE TO CEC LUXEMBOURG, DG XIII/A2, POB 1907 MENTIONING PAPER E 32274 ORA
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Record Number: 1989123114500 / Last updated on: 1987-01-01
Available languages: en