Method of and system for processing a slurry containing organic components
AssigneeSCW Systems B.V.
InventorsGerardus Cornelis Otto Bernard Essing, Douglas Scott Hendry
Life of this patent
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Abstract
A method of and a system for processing a slurry containing organic components, such as biomass, having a water contents of at least 50%, comprises a pump and heater or heat exchanger to bring the liquid in the slurry in a supercritical state. A reactor converts at least a part of the organic components in the slurry. A separator removes gaseous products from the converted slurry. A mixer adds fluid from the converted slurry to the slurry upstream from the reactor.
Claims13
A method of processing a slurry containing organic components and water, comprising:
- in a reducing step, reducing a percentage of water of the slurry to form an intermediate composition;
- in a mixing step, transporting the intermediate composition to a mixer and increasing the water content by mixing the intermediate composition with a hot process water to form a ready mix;
- increasing pressure and temperature of the ready mix to bring the water in the ready mix to a supercritical state;
- transporting the ready mix via a heat exchanger to a reactor;
- in a converting step in the reactor, converting through supercritical water gasification at least a part of the organic components in the ready mix to hydrogen and one or more hydrocarbons to produce a converted slurry;
- separating solids from the converted slurry into separated water and solids;
- recycling at least some of the separated water from the converted slurry as a heat exchanging counter current via said heat exchanger to a gas-liquid gas-liquid separator to separate the hydrogen and hydrocarbons;
- recycling at least some of the separated water as the hot process water in the mixing step, so as to recycles heat used in the converting step.
A method of processing a first aqueous slurry containing organic components, the method comprising:
- in a reducing step, reducing water content of the first aqueous slurry to form a second aqueous slurry;
- increasing pressure and temperature of the second aqueous slurry to bring the water in the second aqueous slurry into a supercritical state;
- in a converting step, converting through supercritical water gasification at least a part of the organic components in the second aqueous slurry to hydrogen and/or one or more hydrocarbons to produce a converted slurry while adding heat;
- processing the converted slurry through a solids trap to remove solids from the converted slurry;
- in a heat exchanging step, heat exchanging at least some of the converted slurry after being processed through the solids trap with the second aqueous slurry after the reducing step and before the converting step to recycle heat used in the converting step;
- separating the hydrogen and/or one or more hydrocarbons from the at least some of converted slurry after the heat exchanging step.
Dependencies are inferred from the claim text.