Sorption enhanced methanation of biomass
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United States of America Patent
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May 19, 2020
Grant Date -
Aug 2, 2018
app pub date -
Sep 14, 2017
filing date -
Nov 18, 2009
priority date (Note) -
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Abstract
Disclosed embodiments provide a system and method for producing hydrocarbons from biomass. Certain embodiments of the method are particularly useful for producing substitute natural gas from forestry residues. Certain disclosed embodiments of the method convert a biomass feedstock into a product hydrocarbon by hydropyrolysis. Catalytic conversion of the resulting pyrolysis gas to the product hydrocarbon and carbon dioxide occurs in the presence of hydrogen and steam over a CO2 sorbent with simultaneous generation of the required hydrogen by reaction with steam. A gas separator purifies product methane, while forcing recycle of internally generated hydrogen to obtain high conversion of the biomass feedstock to the desired hydrocarbon product. While methane is a preferred hydrocarbon product, liquid hydrocarbon products also can be delivered.
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International Classification(s)
- C01B:NON-METALLIC ELEMENTS; COMPOUNDS THEREOF
- C10L:FUELS NOT OTHERWISE PROVIDED FOR; NATURAL GAS; SYN....
- C10K:PURIFYING OR MODIFYING THE CHEMICAL COMPOSITION OF....
- C10J:PRODUCTION OF PRODUCER GAS, WATER-GAS, SYNTHESIS G....
- B01D:SEPARATION
- C10B:DESTRUCTIVE DISTILLATION OF CARBONACEOUS MATERIALS....
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