Utilising of Continually Working Filter for Syngas Cleaning

conference paper

English

Gasification is one of promising alternative technologies for heat and electricity production from renewable fuels. However, tar and dust content in the gas do not enable the direct utilization. Dolomite using for catalytic tar removal does not require gas cooling and water waste production. This work describes particularly the hot gas cleaning system studied on pilot continual-working moving bed filter coupled with a fluidized bed gasifier. The heated filter operates at temperature range of 700-1100 C in counter-current configuration with the dolomite particles as the filtration and catalytic active material. The tar and dust removal efficiency were determinated at different temperatures and flow velocities. There were achieved tar content less than 10 mg.m-3 in the gas and dust content about 50 mg.m-3. These results show that tar and dust reduction in hot filter is high efficient method of gas cleaning at high temperatures without loss in the total effectiveness. Deactivated dolomite is the only waste product and it can be removed by high-temperature oxidation. Once the operating conditions are optimised, the continuous hot catalytic filter presented will enable efficient and effective of syngas cleaning to make it usable in the combustion engine.

Biomass growing, biomass types, gasification

LISÝ, M.; BALÁŠ, M.; KOHOUT, P.; OCHRANA, L.; SKOBLIA, S.; KOUTSKÝ, B.

2006

19. 8. 2006

0-08-045056-3

World Renewable Energy Congress IX, Book of Abstract

294

299

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