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US 10,370,605 B2Granted
Coaxial gasifier for enhanced hydrogen production
AssigneeV-GRID Energy Systems
InventorMichael Cheiky
Life of this patent
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Abstract
Embodiments of the invention are directed toward a coaxial gasifier for enhanced hydrogen production, comprising: downdraft gasifier comprising a hot zone for converting biomass to synthesis gas; and a coaxial gas converter disposed within the downdraft gasifier, the coaxial gas converter comprising a biochar inlet valve, a coaxial char tube, and a biochar and ash outlet valve.
Claims22
A coaxial gas converter for a downdraft gasifier, the coaxial gas converter comprising:
- a char tube coaxially located from a top to a bottom of the gasifier;
- a biochar inlet valve coaxially located with the char tube and configured to meter biochar into the char tube at the top of the gasifier;
- a reduction bell having an opening for passage of the char tube;
- a biochar and ash outlet valve coaxially located with the char tube and configured to periodically dump ash out of the bottom of the gasifier to prevent ash buildup in the char tube,
- wherein the downdraft gasifier comprises a plurality of air inlet jets configured to create an extended hot zone in the reduction bell.
2 more elements
Apparatus, comprising:
- a downdraft gasifier having a coaxial gas converter, the coaxial gas converter comprising:
- a char tube coaxially located from a top to a bottom of the gasifier;
- a biochar inlet valve coaxially located with the char tube and configured to meter biochar into the char tube at the top of the gasifier;
- a reduction bell having an opening for passage of the char tube;
- and
- a biochar and ash outlet valve coaxially located with the char tube and configured to periodically dump ash out of the bottom of the gasifier to prevent ash buildup in the char tube,
- wherein the downdraft gasifier comprises a plurality of air inlet jets configured to create an extended hot zone in the reduction bell.
4 more elements
Dependencies are inferred from the claim text.