Evaluation of waste pyrolysis characteristics in a pressurized fluidized bed reactor.
To obtain the distribution of fuel components to gas, tar and char in a pressurized fluidized bed waste pyrolyzer, experiments were conducted with a laboratory scale fluidized bed reactor. Waste samples were fed batchwise from the top of the reactor into the fluidized bed of silica sand and pyrolyzed by nitrogen/nitrogen-O2 gas and the effects of pressure, particle size, heating rate and oxygen addition were investigated. In the case of rubber, the char yield tended to increase a little and the tar yield decrease over the pressure of 304-709 kPa. In comparison with the thermogravimetry data it was clearly demonstrated that the char yield from fluidized bed pyrolysis is much lower. A small amount of oxygen addition decreased both tar and char yields but its further increase did not affect them very much.
Tokyo University of Agriculture and Technology Graduate School BASE, Koganei, Tokyo 184-8588, Japan.
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Ono
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Kurita
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Nagashima
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Horio
D000397:Air Pollution / Q000517:prevention & control; D005740:Gases / Q000737:chemistry; D006358:Hot Temperature; D008855:Microscopy, Electron, Scanning; D009584:Nitrogen / Q000737:chemistry; D010100:Oxygen / Q000737:chemistry; D010316:Particle Size; D011312:Pressure; D012408:Rubber / Q000737:chemistry; D012822:Silicon Dioxide; D013818:Thermogravimetry; D018505:Waste Management / Q000295:instrumentation* / Q000379:methods
D005740:Gases; D012822:Silicon Dioxide; D012408:Rubber; D009584:Nitrogen; D010100:Oxygen