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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
Inventors:
; ; ;
Issue Date:
OSTI Identifier:
1334666
Assignee:
Gas Technology Institute (Des Plaines, IL) DOEEE
Patent Number(s):
9,512,364
Application Number:
14/492,840
Contract Number:
EE0002873
Resource Relation:
Patent File Date: 2014 Sep 22
Research Org:
Gas Technology Institute, Des Plaines, IL (United States)
Sponsoring Org:
USDOE
Country of Publication:
United States
Language:
English
Subject:
37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY; 09 BIOMASS FUELS

Other works cited in this record:

Production of aviation fuel from renewable feedstocks
patent, October 2011

Pyrolysis of Wood/Biomass for Bio-oil: A Critical Review
journal, May 2006
  • Mohan, Dinesh; Pittman,, Charles U.; Steele, Philip H.
  • Energy & Fuels, Vol. 20, Issue 3, p. 848-889
  • DOI: 10.1021/ef0502397

The scope for generating bio-oils with relatively low oxygen contents via hydropyrolysis
journal, December 1999

Effect of H2-pressure on the structures of bio-oils from the mild hydropyrolysis of biomass
journal, January 1993

A two-stage fixed-bed reactor for direct hydrotreatment of volatiles from the hydropyrolysis of biomass: effect of catalyst temperature, pressure and catalyst ageing time on product characteristics
journal, December 1998

Release of covalently-bound alkane biomarkers in high yields from kerogen via catalytic hydropyrolysis
journal, October 1995

A new route to prepare supported nickel phosphide/silica–alumina hydrotreating catalysts from amorphous alloys
journal, July 2007

Heat transfer from vertical inserts in gas-fluidized beds
journal, November 1996

Some effects of baffles on a fluidized system
journal, March 1959
  • Overcashier, R. H.; Todd, D. B.; Olney, R. B.
  • AIChE Journal, Vol. 5, Issue 1, p. 54-60
  • DOI: 10.1002/aic.690050113

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