Method of and system for grinding pyrolysis of particulate carbonaceous feedstock
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United States of America Patent
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Jun 12, 2018
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app pub date -
Jun 21, 2011
filing date -
Jun 22, 2010
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Abstract
A pyrolysis plant 20 comprises a grinding pyrolyzer 22, being a machine or apparatus in which both particle size reduction and pyrolysis occur simultaneously. Plant 20 also comprises a bin (hopper) 30 for holding wet particulate biomass feedstock. Chute 32 leads from the bin 30 to a biomass dryer 34 which reduces moisture content of the feedstock as low as possible, e.g., to below about 10. Dried feedstock is conveyed from dryer 34 via line 36 to a dried biomass feedstock hopper 38. Dried feedstock is fed from hopper 38 into a chute 40 which leads to an inlet trunnion 42 of grinding pyrolyzer 22. A discharge trunnion 44 of grinding pyrolyzer 22 leads to a char holder 60 for collecting char particles and a condensation train 62 for condensing vapor generated by the pyrolysis to produce oil.
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