A three-stage biomass gasification device and method for producing combustible gas with low tar and high calorific value
A low-tar, three-stage technology, used in the manufacture of combustible gas, granular/powder fuel gasification, petroleum industry, etc., can solve the problems of high tar concentration, low calorific value of gas production, and high gasification efficiency. The effect of improving gas cleanliness and calorific value and avoiding gas back-channeling
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[0028]The three-stage biomass gasification device provided by the present invention to produce low-tar high-calorific-value combustible gas mainly consists of a fluidized bed gasification reactor 1, a cyclone reforming reactor 2, a moving bed catalytic reactor 3, and a feeder 4 composition. The upper part of the fluidized bed gasification reactor 1 communicates with the upper part of the cyclone reforming reactor 2, the lower part communicates with the lower part of the moving bed catalytic reactor 3 through the feeder 4, and the top of the cyclone reforming reactor 2 communicates with the moving bed catalytic reactor 3 connected at the top. The lower part of the fluidized bed gasification reactor 1 is also equipped with a biomass particle feeding port B and a first oxygen-enriched / steam inlet A, and a slag discharge port C is provided at the bottom; the upper part of the cyclone reforming reactor 2 is a second Oxygen-enriched / steam inlet D, the bottom is a liquid slag outlet...
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