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US 10,995,274 B2Granted
Biocoal fuel product and processes and systems for the production thereof
AssigneeBritish Columbia Biocarbon Ltd.
InventorPhil Marsh
Life of this patent
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Abstract
A single pass method of production of an improved biocoal product according to which biomass is thermo-chemically broken down into its constituent components, the components are modified, and selected components are recombined to form a much more valuable fuel product which is more waterproof, more durable, and has a higher energy density than the original biomass. Other non-selected components may be used to provide energy to the biocoal production process.
Claims11
A process for producing a fuel product containing solid phase char and tar components comprising:
- pyrolyzing a biomass in a carbonizer to produce a solid phase char and a tar-laden gas;
- transferring the solid phase char from the carbonizer to a mixer;
- transferring the tar-laden gas from the carbonizer to a condenser;
- condensing the tar-laden gas to produce a liquid phase tar, the liquid phase tar containing heavier liquid phase tar and lighter liquid phase tar stratified in the condenser along a thermal gradient;
- extracting the heavier liquid phase tar from the condenser;
- transferring the heavier liquid phase tar to the mixer;
- mixing the heavier liquid phase tar with the solid phase char in the mixer;
- and
- forming the fuel product including both char and tar components by compacting a mixture produced by the mixing into briquettes or pellets,
- wherein between the condensing and the mixing, the tar is maintained at a temperature above a softening point of the tar and the fuel product is not subject to further pyrolysis.
7 more elements
Dependencies are inferred from the claim text.