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Title: Bubbling bed catalytic hydropyrolysis process utilizinig larger catalyst particles and small biomass particles featuring an anti-slugging reactor

This invention relates to a process for thermochemically transforming biomass or other oxygenated feedstocks into high quality liquid hydrocarbon fuels. In particular, a catalytic hydropyrolysis reactor, containing a deep bed of fluidized catalyst particles is utilized to accept particles of biomass or other oxygenated feedstocks that are significantly smaller than the particles of catalyst in the fluidized bed. The reactor features an insert or other structure disposed within the reactor vessel that inhibits slugging of the bed and thereby minimizes attrition of the catalyst. Within the bed, the biomass feedstock is converted into a vapor-phase product, containing hydrocarbon molecules and other process vapors, and an entrained solid char product, which is separated from the vapor stream after the vapor stream has been exhausted from the top of the reactor. When the product vapor stream is cooled to ambient temperatures, a significant proportion of the hydrocarbons in the product vapor stream can be recovered as a liquid stream of hydrophobic hydrocarbons, with properties consistent with those of gasoline, kerosene, and diesel fuel. Separate streams of gasoline, kerosene, and diesel fuel may also be obtained, either via selective condensation of each type of fuel, or via later distillation of the combined hydrocarbonmore » liquid.« less
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Issue Date:
OSTI Identifier:
Gas Technology Institute (Des Plaines, IL) DOEEE
Patent Number(s):
Application Number:
Contract Number:
Resource Relation:
Patent File Date: 2014 Sep 22
Research Org:
Gas Technology Institute, Des Plaines, IL (United States)
Sponsoring Org:
Country of Publication:
United States

Works referenced in this record:

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The scope for generating bio-oils with relatively low oxygen contents via hydropyrolysis
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Release of covalently-bound alkane biomarkers in high yields from kerogen via catalytic hydropyrolysis
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A new route to prepare supported nickel phosphide/silica–alumina hydrotreating catalysts from amorphous alloys
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journal, November 1996

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