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Title: Methods and apparatus for catalytic hydrothermal gasification of biomass

Abstract

Continuous processing of wet biomass feedstock by catalytic hydrothermal gasification must address catalyst fouling and poisoning. One solution can involve heating the wet biomass with a heating unit to a temperature sufficient for organic constituents in the feedstock to decompose, for precipitates of inorganic wastes to form, for preheating the wet feedstock in preparation for subsequent separation of sulfur contaminants, or combinations thereof. Treatment further includes separating the precipitates out of the wet feedstock, removing sulfur contaminants, or both using a solids separation unit and a sulfur separation unit, respectively. Having removed much of the inorganic wastes and the sulfur that can cause poisoning and fouling, the wet biomass feedstock can be exposed to the heterogeneous catalyst for gasification.

Inventors:
; ; ; ;
Issue Date:
Research Org.:
Pacific Northwest National Lab. (PNNL), Richland, WA (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1176472
Patent Number(s):
8241605
Application Number:
12/339,876
Assignee:
Battelle Memorial Institute (Richland, WA)
Patent Classifications (CPCs):
Y - NEW / CROSS SECTIONAL TECHNOLOGIES Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE Y02P - CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
C - CHEMISTRY C10 - PETROLEUM, GAS OR COKE INDUSTRIES C10J - PRODUCTION OF PRODUCER GAS, WATER-GAS, SYNTHESIS GAS FROM SOLID CARBONACEOUS MATERIAL, OR MIXTURES CONTAINING THESE GASES
DOE Contract Number:  
AC05-76RL01830
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
09 BIOMASS FUELS; 37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY

Citation Formats

Elliott, Douglas C., Butner, Robert Scott, Neuenschwander, Gary G., Zacher, Alan H., and Hart, Todd R. Methods and apparatus for catalytic hydrothermal gasification of biomass. United States: N. p., 2012. Web.
Elliott, Douglas C., Butner, Robert Scott, Neuenschwander, Gary G., Zacher, Alan H., & Hart, Todd R. Methods and apparatus for catalytic hydrothermal gasification of biomass. United States.
Elliott, Douglas C., Butner, Robert Scott, Neuenschwander, Gary G., Zacher, Alan H., and Hart, Todd R. Tue . "Methods and apparatus for catalytic hydrothermal gasification of biomass". United States. https://www.osti.gov/servlets/purl/1176472.
@article{osti_1176472,
title = {Methods and apparatus for catalytic hydrothermal gasification of biomass},
author = {Elliott, Douglas C. and Butner, Robert Scott and Neuenschwander, Gary G. and Zacher, Alan H. and Hart, Todd R.},
abstractNote = {Continuous processing of wet biomass feedstock by catalytic hydrothermal gasification must address catalyst fouling and poisoning. One solution can involve heating the wet biomass with a heating unit to a temperature sufficient for organic constituents in the feedstock to decompose, for precipitates of inorganic wastes to form, for preheating the wet feedstock in preparation for subsequent separation of sulfur contaminants, or combinations thereof. Treatment further includes separating the precipitates out of the wet feedstock, removing sulfur contaminants, or both using a solids separation unit and a sulfur separation unit, respectively. Having removed much of the inorganic wastes and the sulfur that can cause poisoning and fouling, the wet biomass feedstock can be exposed to the heterogeneous catalyst for gasification.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2012},
month = {8}
}

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Works referenced in this record:

Catalytic hydrothermal gasification of biomass
journal, January 2008


Thermochemical biofuel production in hydrothermal media: A review of sub- and supercritical water technologies
journal, January 2008


Biomass Gasification in Supercritical Water:  Influence of the Dry Matter Content and the Formation of Phenols
journal, August 2003


Chemical Processing in High-Pressure Aqueous Environments. 7. Process Development for Catalytic Gasification of Wet Biomass Feedstocks
journal, April 2004

  • Elliott, Douglas C.; Neuenschwander, Gary G.; Hart, Todd R.
  • Industrial & Engineering Chemistry Research, Vol. 43, Issue 9, p. 1999-2004
  • https://doi.org/10.1021/ie034303o

Chemical Processing in High-Pressure Aqueous Environments. 4. Continuous-Flow Reactor Process Development Experiments for Organics Destruction
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Biomass gasification in near- and super-critical water: Status and prospects
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Subcritical Water Regeneration of Supported Ruthenium Catalyst Poisoned by Sulfur
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