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Title: 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
DOE Contract Number:
XAC-5-14411-01; AU-8876
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 (4)

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

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Related Subjects

process
conversion
lignin
reformulated
partially
oxygenated
gasoline
high-yield
converting
compositions
quality
provided
two-stage
catalytic
reaction
produces
product
controlled
amount
aromatics
stage
feed
material
subjected
base-catalyzed
depolymerization
followed
selective
hydrocracking
utilizes
superacid
catalyst
produce
oxygen-content
depolymerized
mainly
composed
alkylated
phenols
alkoxyphenols
alkylbenzenes
exhaustive
etherification
optionally
partial
hydrogenation
etherified
mixture
substituted
phenyl
methyl
ethers
cycloalkyl
-c
10
branched
multibranched
paraffins
polyalkylated
cycloalkanes
stage catalytic
partially oxygenated
acid catalyst
feed material
catalytic reaction
reaction process
controlled amount
two-stage catalytic
oxygenated gasoline
hydrogenation reaction
oxygenated gas
gasoline compositions
yield process
polymerization reaction
converting lignin
/585/44/208/999/