U.S. Department of EnergyOffice of Scientific and Technical Information
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:
- Publication Date:
- Research Org.:
- Pacific Northwest National Laboratory (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. 2019.
"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 = {},
url = {https://www.osti.gov/biblio/1493500},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Tue Jan 01 00:00:00 EST 2019},
month = {Tue Jan 01 00:00:00 EST 2019}
}
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