An Introduction to Biomass Thermochemical Conversion - NREL

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Fluid Bed Reactors Good temperature control, Char removal is usually by ejection and entrainment; separation by cyclone, Easy scaling, Well understood technology since first experiments at University of Waterloo in 1980s Small particle sizes needed, Heat transfer to bed at large scale has to be proven.
Pyrolyzer BIOMASS Circulating Fluid Beds Sand+ Char Hot sand Flue gas GAS To reactor or export Air BIO-OIL Combustor Gas recycle
Page 1 and 2:
An Introduction to Biomass Thermoch
Page 3 and 4:
Fuels, Chemicals, Materials, Heat a
Page 5:
Combustion Pyrolysis • Thermal co
Page 8 and 9:
POTENTIAL BIOMASS PRODUCTS • Pote
Page 10 and 11: Proximate (wt% as received) Poplar
Page 12 and 13: Actual HHV (Btu/lb) 12000 10000 800
Page 14 and 15: Alfalfa stems Rice straw Wood - yar
Page 16 and 17: Stages of Combustion of Solids •D
Page 18: Combustor Types •Stoker Grate •
Page 21 and 22: Biomass Technology Stoker Boiler, W
Page 23 and 24: 1.0 Fossil Energy In Life Cycle CO2
Page 25 and 26: Electricity (cents/kWh) and Steam (
Page 27 and 28: Product High Pressure Low Pressure
Page 29 and 30: Mixed Oxygenates Conventional Flash
Page 31 and 32: 1792 and all that • Murdoch (1792
Page 33 and 34: C + CO2 = 2CO C + H2O = CO + H2 C +
Page 35 and 36: Table 2: Gas composition for fluid
Page 37 and 38: Biomass Coal Oxygen Sulfur Ash Alka
Page 39 and 40: Community Power Corporation’s Cor
Page 42 and 43: Contribution to Hydrogen Price for
Page 44 and 45: Life Cycle GWP and Energy Balance f
Page 46 and 47: CRUDE OIL CRUDE TOWER ATMOS RESID H
Page 48 and 49: Net Revenue Potential of Biorefiner
Page 50 and 51: Pyrolysis
Page 52 and 53: Mechanisms of Pyrolysis Many pathwa
Page 54 and 55: Fast Pyrolysis of Biomass • Fast
Page 56 and 57: Operational Pyrolysis Units Fluid b
Page 58 and 59: Fluid Bed Heating Options 1 Hot wal
Page 62 and 63: CFB and Transported Beds • Good t
Page 64 and 65: Vacuum Moving Bed Developed at Uni
Page 66 and 67: Char Removal Char acts as a vapor c
Page 68 and 69: Fast Pyrolysis Bio-oil Bio-oil is w
Page 70 and 71: Upgrading of Bio-oils Physical Meth
Page 72 and 73: Bio-oil Cost Different claims of th
Page 74 and 75: Research Opportunities
Page 76 and 77: Biomass Thermochemical Conversion P
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An Introduction to Biomass Thermochemical Conversion - NREL

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