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Title: Catalytic hydrothermal liquefaction for bio-oil production

Abstract

Embodiments of a method for producing bio-oil include hydrothermal liquefaction of a biomass (e.g., a lignocellulosic biomass) feedstock to provide a process stream comprising crude oil and an aqueous fraction. The process stream is catalytically upgraded by contact with a sulfided-ruthenium catalyst, in the absence of added hydrogen, at a temperature and pressure effective to reduce an oxygen content of the crude oil, reduce a nitrogen content of the crude oil, reduce a total acid number of the crude oil, increase a H:C mole ratio of the crude oil, reduce a density of the crude oil, reduce a moisture content of the crude oil, reduce viscosity of the crude oil, or any combination thereof, thereby producing an upgraded oil and an upgraded aqueous fraction, which are subsequently separated. The catalytic upgrading process may be a plug-flow process and/or may be performed at or near liquefaction conditions.

Inventors:
; ; ;
Issue Date:
Research Org.:
Pacific Northwest National Lab. (PNNL), Richland, WA (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1493500
Patent Number(s):
10,167,430
Application Number:
15/195,553
Assignee:
Battelle Memorial Institute (Richland, WA) (United States)
DOE Contract Number:  
AC0576RL01830
Resource Type:
Patent
Resource Relation:
Patent File Date: 2016 Jun 28
Country of Publication:
United States
Language:
English
Subject:
09 BIOMASS FUELS

Citation Formats

Hart, Todd R., Elliott, Douglas C., Schmidt, Andrew J., and Hallen, Richard T. Catalytic hydrothermal liquefaction for bio-oil production. United States: N. p., 2019. Web.
Hart, Todd R., Elliott, Douglas C., Schmidt, Andrew J., & Hallen, Richard T. Catalytic hydrothermal liquefaction for bio-oil production. United States.
Hart, Todd R., Elliott, Douglas C., Schmidt, Andrew J., and Hallen, Richard T. Tue . "Catalytic hydrothermal liquefaction for bio-oil production". United States. https://www.osti.gov/servlets/purl/1493500.
@article{osti_1493500,
title = {Catalytic hydrothermal liquefaction for bio-oil production},
author = {Hart, Todd R. and Elliott, Douglas C. and Schmidt, Andrew J. and Hallen, Richard T.},
abstractNote = {Embodiments of a method for producing bio-oil include hydrothermal liquefaction of a biomass (e.g., a lignocellulosic biomass) feedstock to provide a process stream comprising crude oil and an aqueous fraction. The process stream is catalytically upgraded by contact with a sulfided-ruthenium catalyst, in the absence of added hydrogen, at a temperature and pressure effective to reduce an oxygen content of the crude oil, reduce a nitrogen content of the crude oil, reduce a total acid number of the crude oil, increase a H:C mole ratio of the crude oil, reduce a density of the crude oil, reduce a moisture content of the crude oil, reduce viscosity of the crude oil, or any combination thereof, thereby producing an upgraded oil and an upgraded aqueous fraction, which are subsequently separated. The catalytic upgrading process may be a plug-flow process and/or may be performed at or near liquefaction conditions.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2019},
month = {1}
}

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Works referenced in this record:

Hydrocarbon Liquid Production from Biomass via Hot-Vapor-Filtered Fast Pyrolysis and Catalytic Hydroprocessing of the Bio-oil
journal, August 2014

  • Elliott, Douglas C.; Wang, Huamin; French, Richard
  • Energy & Fuels, Vol. 28, Issue 9
  • DOI: 10.1021/ef501536j

Hydrothermal liquefaction of biomass: Developments from batch to continuous process
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Catalytic conversion of waste biomass by hydrothermal treatment
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Catalytic Hydrothermal Liquefaction of Soy Protein Concentrate
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Continuous production of bio-oil by catalytic liquefaction from wet distiller’s grain with solubles (WDGS) from bio-ethanol production
journal, January 2012


Renewable Chemical Commodity Feedstocks from Integrated Catalytic Processing of Pyrolysis Oils
journal, November 2010