Production and conditioning of synthesis gas obtained from biomass
AssigneeEnerkem, Inc.
InventorsEsteban Chornet, Boris Valsecchi, Guillaume Drolet, Martin Gagnon, Betty Nguyen
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Abstract
A method of producing and treating synthesis gas in which a biomass-rich material is gasified in a gasifier containing a fluidized bed at a temperature that does not exceed 750° C. to produce a crude synthesis gas product. The crude synthesis gas then is quenched, scrubbed, and then subjected to at least one adsorption step to provide a clean synthesis gas. The clean synthesis gas then may be reformed catalytically to provide a synthesis gas with a desired H2:CO ratio, and/or may be employed in the synthesis of desired chemicals.
Claims18
A method of producing and treating synthesis gas, comprising:
- (a) gasifying a biomass rich material in the presence of (i) air, oxygen-enriched air, and/or oxygen and (ii) steam in a gasifier containing a fluidized bed at a temperature that does not exceed 750° C. to produce a crude synthesis gas;
- (b) subjecting said crude synthesis gas to steam reforming in the presence of steam and air, oxygen-enriched air, and/or oxygen at a temperature of from about 750° C. to about 1,000° C.;
- (c) quenching said crude synthesis gas from step (b);
- (d) scrubbing said quenched synthesis gas from step (c);
- and
- (e) subjecting said scrubbed synthesis gas to at least one adsorption step to provide a clean synthesis gas.
Dependencies are inferred from the claim text.