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Process for conversion of lignin to reformulated, partially oxygenated gasoline

Patent ·
OSTI ID:873487
 [1];  [1];  [2]
  1. Salt Lake City, UT
  2. Golden, CO
+ Show Author Affiliations
A high-yield process for converting lignin into reformulated, partially oxygenated gasoline compositions of high quality is provided. The process is a two-stage catalytic reaction process that produces a reformulated, partially oxygenated gasoline product with a controlled amount of aromatics. In the first stage of the process, a lignin feed material is subjected to a base-catalyzed depolymerization reaction, followed by a selective hydrocracking reaction which utilizes a superacid catalyst to produce a high oxygen-content depolymerized lignin product mainly composed of alkylated phenols, alkylated alkoxyphenols, and alkylbenzenes. In the second stage of the process, the depolymerized lignin product is subjected to an exhaustive etherification reaction, optionally followed by a partial ring hydrogenation reaction, to produce a reformulated, partially oxygenated/etherified gasoline product, which includes a mixture of substituted phenyl/methyl ethers, cycloalkyl methyl ethers, C.sub.7 -C.sub.10 alkylbenzenes, C.sub.6 -C.sub.10 branched and multibranched paraffins, and alkylated and polyalkylated cycloalkanes.
Research Organization:
Sandia National Labs
Assignee:
University of Utah (Salt Lake City, UT)
Patent Number(s):
US 6172272
Application Number:
09/376,864
OSTI ID:
873487
Country of Publication:
United States
Language:
English

References (5)

Catalytic functionalities of supported sulfides IV. C$z.sbnd;O hydrogenolysis selectivity as a function of promoter type journal April 1987
Catalytic functionalities of supported sulfides V. C$z.sbnd;N bond hydrogenolysis selectivity as a function of promoter type journal September 1988
Conversion of butane over the solid superacid ZrO2/SO42$minus; in the presence of hydrogen journal September 1991
Design of Sulfur-Promoted Solid Superacid Catalyst
  • Tanabe, K.; Yamaguchi, T.
  • Successful Design of Catalysts Future Requirements and Development, Proceedings ofthe Worldwide Catalysis Seminars, July, 1988, on the Occasion of the 30th Anniversary of the Catalysis Society of Japan https://doi.org/10.1016/S0167-2991(09)61284-2
book January 1989
Selective isomerization of alkanes on supported tungsten oxide acids book January 1996

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Related Subjects

-c
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10
acid catalyst
alkoxyphenols
alkylated
alkylbenzenes
amount
aromatics
base-catalyzed
branched
catalyst
catalytic
catalytic reaction
composed
compositions
controlled
controlled amount
conversion
converting
converting lignin
cycloalkanes
cycloalkyl
depolymerization
depolymerized
etherification
etherified
ethers
exhaustive
feed
feed material
followed
gasoline
gasoline compositions
high-yield
hydrocracking
hydrogenation
hydrogenation reaction
lignin
mainly
material
methyl
mixture
multibranched
optionally
oxygen-content
oxygenated
oxygenated gas
oxygenated gasoline
paraffins
partial
partially
partially oxygenated
phenols
phenyl
polyalkylated
polymerization reaction
process
produce
produces
product
provided
quality
reaction
reaction process
reformulated
selective
stage
stage catalytic
subjected
substituted
superacid
two-stage
two-stage catalytic
utilizes
yield process