Pretreatment of biomass using thermo mechanical methods before gasification
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United States of America Patent
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Sep 8, 2015
Grant Date -
Sep 26, 2013
app pub date -
Mar 26, 2012
filing date -
Mar 26, 2012
priority date (Note) -
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status (Latency Note)
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Abstract
An integrated plant generates syngas from biomass, where the integrated plant includes a Thermo Mechanical Pulping (TMP) process, a biomass gasifier, a methanol synthesis process, and a liquid fuel generation process. Biomass is received as a feedstock in the TMP process. The biomass is pre-treated in the TMP process for subsequent supply to the biomass gasifier by using a combination of heat, pressure, moisture, and mechanical agitation that are applied to the biomass to make the biomass into a pulp form. The TMP process breaks down a bulk structure of the received biomass, at least in part, by applying steam to degrade bonds between lignin and hemi-cellulose from cellulose fibers of the biomass. Next, the broken down particles of the biomass are reacted in a biomass gasification reaction at a temperature of greater than 700 degrees C. to create syngas components, which are fed to a methanol synthesis process.
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International Classification(s)
- D21B:FIBROUS RAW MATERIALS OR THEIR MECHANICAL TREATMEN....
- C10L:FUELS NOT OTHERWISE PROVIDED FOR; NATURAL GAS; SYN....
- C07C:ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C10J:PRODUCTION OF PRODUCER GAS, WATER-GAS, SYNTHESIS G....
- B01J:CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS, CO....
- C10G:CRACKING HYDROCARBON OILS; PRODUCTION OF LIQUID HY....
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