Fluidized Bed Gasification of Biomass for Small Scale

Fluidized Bed Gasification of Biomass for Small Scale

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Large scale boilers and gasifiers are often designed with a fluidized bed at present time. The fluidized bed offers significant advantages leading to higher efficiency and lower rates of air pollutants. Good ability of process controlling is the main advantage of fluidized bed technology. This ability is connected with structure of the fluidized bed. The fluidized bed is formed by a lot of particles rapidly moving in a limited room. Intensive particles movement allows intensive transfer of heat in whole room of the fluidized bed. Fluidized bed parameters are directly connected with air distribution and geometry of a reactor. This paper deals with utilizing of gas obtained from gasification of biomass. Direct utilizing of produced LHV gas in internal combustion engines is unacceptable due to high level of tar in produced gas. This issue has to be coupe for a long life of engines and minimal maintenance guarantee. From that follows, gas cleaning is necessary before utilizing of produced gas in a CHP unit.

Large scale boilers and gasifiers are often designed with a fluidized bed at present time. The fluidized bed offers significant advantages leading to higher efficiency and lower rates of air pollutants. Good ability of process controlling is the main advantage of fluidized bed technology. This ability is connected with structure of the fluidized bed. The fluidized bed is formed by a lot of particles rapidly moving in a limited room. Intensive particles movement allows intensive transfer of heat in whole room of the fluidized bed. Fluidized bed parameters are directly connected with air distribution and geometry of a reactor. This paper deals with utilizing of gas obtained from gasification of biomass. Direct utilizing of produced LHV gas in internal combustion engines is unacceptable due to high level of tar in produced gas. This issue has to be coupe for a long life of engines and minimal maintenance guarantee. From that follows, gas cleaning is necessary before utilizing of produced gas in a CHP unit.

fluidized bed, biomass

fluidized bed, biomass

POSPÍŠIL, J.; OCHRANA, L.; SKÁLA, Z.

29.08.2004

Elsevier

Denver, Colorado USA

008-044470-9

World Renewable Energy Congres

1

BM13

5