Production of products from biomass
AssigneeHermal Bio Energy International Pty Ltd
InventorRonald David Goldschlager
Life of this patent
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Abstract
A process for producing products from biomass comprises pyrolysing biomass at a selected temperature and producing a bio-syngas, processing bio-syngas from pyrolysis step (a) to remove condensable constituents from the bio-syngas, and processing the non-condensable bio-syngas from bio-syngas processing step (b) and producing one or more than one product, such as bio-fuels, bio-chemicals, bio-solvents and bio-plastics.
Claims16
A process for producing products, including any one of bio-fuels, bio-chemicals, bio-solvents and bio-plastics, from biomass that comprises the following steps:
- (a) drying a biomass feed material to a required moisture content,
- (b) pyrolysing the dried feed material at a selected temperature and decomposing the feed material and producing a bio-syngas and a solid char, selecting the operating conditions including temperature and residence time to optimize and/or maximize bio-syngas production compared to solid char production, with at least 80 wt. % of the output being bio-syngas,
- (c) condensing the bio-syngas from pyrolysis step (b) and removing condensable constituents from the bio-syngas and producing a condensed bio-liquid and a non-condensable bio-syngas;
- and
- (d) splitting the non-condensable bio-syngas from condensing step (c) into two portions,
- (e) combusting one portion of the non-condensable bio-syngas as a source of energy with an air/O2 mixture and generating (i) work/power and (ii) a flue gas stream,
- (f) transferring the flue gas stream to the drying unit and using the flue gas stream to dry feed biomass, and
- (g) processing the other portion of the non-condensable bio-syngas in a bio-hydrocarbons synthesis process unit and producing one or more than one of bio-fuels, bio-chemicals, bio-solvents and bio-plastics.
A plant for producing products, including any one of bio-fuels, bio-chemicals, bio-solvents and bio-plastics, from biomass that includes:
- (a) a dryer unit for drying a biomass feed material to a required moisture content,
- (b) a pyrolyser unit for pyrolysing the dried feed material at a selected temperature and decomposing the feed material and producing a bio-syngas, wherein the pyrolyser unit includes a combustion unit for generating heat for pyrolysing the feed material,
- (c) a condenser for condensing bio-liquids from the bio-syngas from the pyrolysis unit and producing (i) condensed bio-liquids and (ii) a non-condensable bio-syngas;
- (d) a splitter for splitting the non-condensable bio-syngas into two portions;
- (e) a gas engine/turbine for generating work/power from one portion of the non-condensable bio-syngas;
- and
- (f) a bio-hydrocarbon synthesis unit for producing one or more than one bio-fuels, bio-chemicals, bio-solvents and bio-plastics, from the other portion of the non-condensable bio-syngas.
Dependencies are inferred from the claim text.