METHOD AND SYSTEM FOR ROASTING A BIOMASS FEEDSTOCK
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Abstract
A method for roasting a load of plant biomass, includes the following stages: generation of a treatment gas stream by a thermal generating apparatus, the treatment gas stream being an inert gas consisting essentially of CO2; generation of a bed of material at high temperature, called the thermal base; treatment of the load of biomass with the treatment gas stream, the treatment gas stream being laden with gaseous components including a water steam and volatile organic compounds originating from the load of biomass during the treatment; and recycling of at least a portion of the water steam by passing at least a portion of the laden gas stream through the thermal base.
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Citations
77 Claims
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1-53. -53. (canceled)
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54. A method for roasting a load of plant biomass, comprising the following stages:
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generation of a treatment gas stream by thermal generating means, said treatment gas stream being an inert gas consisting essentially of CO2; generation of a bed of material at high temperature, called the thermal base; treatment of said load of biomass with said treatment gas stream, said treatment gas stream being laden with gaseous components comprising water steam and volatile organic compounds originating from said load of biomass during said treatment; and recycling of at least a portion of said water steam by passing at least a portion of said laden gas stream through said thermal base. - View Dependent Claims (55, 56, 57, 58, 59, 60, 61)
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62. A system for roasting a load of plant biomass, comprising:
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generating means provided for generating an inert treatment gas stream consisting essentially of CO2 and a bed of material at high temperature, called the thermal base; a treatment unit, provided for receiving and subjecting said load of biomass to said treatment gas stream, said treatment unit comprising a treatment furnace and means for feeding the load of biomass into said treatment furnace and for removing said load of biomass from said treatment furnace; and gas exchange means provided for communication between the generating means and the treatment unit. - View Dependent Claims (63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77)
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Specification