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Electrochemical processes for the removal of pollutants from waste gases can be divided into two classes: inner cell and outer cell processes. Considerations about the rates of mass transfer in electrochemical cells and in gas absorption equipment show that there are intrinsic limitations in the scale up of inner cell processes.
The pilot plant of the Ispra Mark 13A process for flue gas desulphurization at the SARAS Refinery in Sarroch represents probably the biggest scale on which, until now, an electrochemical gas purification process has been operated. Design data and operational results obtained in the pilot plant will be used for the illustration of the differences between inner cell and outer cell processes.

Additional information

Authors: VAN VELZEN D, JRC Ispra (IT)
Bibliographic Reference: Paper presented: Demonstration of the New Processes for Simultaneous Removal of SO(2) and NOx from Combustion Gases, Frankfurt (DE) June 26, 1996
Availability: Available from (1) as Paper EN 39965 ORA
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