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Title: Methods and apparatuses for deoxygenating pyrolysis oil

Patent ·
OSTI ID:1390227

Methods and apparatuses are provided for deoxygenating pyrolysis oil. A method includes contacting a pyrolysis oil with a deoxygenation catalyst in a first reactor at deoxygenation conditions to produce a first reactor effluent. The first reactor effluent has a first oxygen concentration and a first hydrogen concentration, based on hydrocarbons in the first reactor effluent, and the first reactor effluent includes an aromatic compound. The first reactor effluent is contacted with a dehydrogenation catalyst in a second reactor at conditions that deoxygenate the first reactor effluent while preserving the aromatic compound to produce a second reactor effluent. The second reactor effluent has a second oxygen concentration lower than the first oxygen concentration and a second hydrogen concentration that is equal to or lower than the first hydrogen concentration, where the second oxygen concentration and the second hydrogen concentration are based on the hydrocarbons in the second reactor effluent.

Research Organization:
UOP LLC. Des Plaines, IL (United States)
Sponsoring Organization:
USDOE
DOE Contract Number:
EE0002879
Assignee:
UOP LLC
Patent Number(s):
9,758,441
Application Number:
14/551,797
OSTI ID:
1390227
Resource Relation:
Patent File Date: 2014 Nov 24
Country of Publication:
United States
Language:
English

References (12)

Catalytic process for converting renewable resources into paraffins for use as diesel blending stocks patent February 2012
Methods and apparatuses for preparing upgraded pyrolysis oil patent October 2013
Production of Blended Fuel from Renewable Feedstocks patent-application October 2009
Rocess To Produce Biofuels From Biomass patent-application June 2012
Pyrolysis Fuels And Methods For Processing Pyrolysis Fuels patent-application June 2013
Optimized Process For Upgrading Bio-Oils Of Aromatic Bases patent-application December 2013
Biomass Conversion Systems Providing Integrated Stabilization Of A Hydrolysate Using A Slurry Catalyst And Methods For Use Thereof patent-application January 2014
Biomass Conversion Systems Containing A Moving Bed Catalyst For Stabilization Of A Hydrolsate And Methods For Use Thereof patent-application January 2014
Biomass Conversion Systems Having A Single-Vessel Hydrothermal Digestion Unit/Catalytic Reduction Reactor Unit For Integrated Stabilization Of A Hydrolysate And Methods For Use Thereof patent-application March 2014
Biomass Conversion Systems And Methods For Use Thereof patent-application April 2014
Ignocellulosic Biomass Conversion patent-application April 2014
Lignin Conversion Process patent-application May 2014