Process for conversion of lignin to reformulated hydrocarbon gasoline
Patent
·
OSTI ID:872546
- Salt Lake City, UT
- Golden, CO
A process for converting lignin into high-quality reformulated hydrocarbon gasoline compositions in high yields is disclosed. The process is a two-stage, catalytic reaction process that produces a reformulated hydrocarbon gasoline product with a controlled amount of aromatics. In the first stage, a lignin material is subjected to a base-catalyzed depolymerization reaction in the presence of a supercritical alcohol as a reaction medium, to thereby produce a depolymerized lignin product. In the second stage, the depolymerized lignin product is subjected to a sequential two-step hydroprocessing reaction to produce a reformulated hydrocarbon gasoline product. In the first hydroprocessing step, the depolymerized lignin is contacted with a hydrodeoxygenation catalyst to produce a hydrodeoxygenated intermediate product. In the second hydroprocessing step, the hydrodeoxygenated intermediate product is contacted with a hydrocracking/ring hydrogenation catalyst to produce the reformulated hydrocarbon gasoline product which includes various desirable naphthenic and paraffinic compounds.
- Research Organization:
- Sandia National Labs
- Assignee:
- University of Utah Research Foundation (Salt Lake City, UT)
- Patent Number(s):
- US 5959167
- Application Number:
- 09/136,336
- OSTI ID:
- 872546
- Country of Publication:
- United States
- Language:
- English
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 |
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Related Subjects
/585/
alcohol
amount
aromatics
base-catalyzed
catalyst
catalytic
catalytic reaction
compositions
compounds
contacted
controlled
controlled amount
conversion
converting
converting lignin
depolymerization
depolymerized
desirable
disclosed
gasoline
gasoline compositions
high-quality
hydrocarbon
hydrocarbon gas
hydrocarbon gasoline
hydrocracking
hydrodeoxygenated
hydrodeoxygenation
hydrogenation
hydrogenation catalyst
hydroprocessing
intermediate
intermediate product
lignin
material
medium
naphthenic
paraffinic
polymerization reaction
presence
process
processing step
produce
produces
product
reaction
reaction medium
reaction process
reformulated
reformulated hydrocarbon
sequential
stage
step
subjected
supercritical
two-stage
two-step
various
yields
alcohol
amount
aromatics
base-catalyzed
catalyst
catalytic
catalytic reaction
compositions
compounds
contacted
controlled
controlled amount
conversion
converting
converting lignin
depolymerization
depolymerized
desirable
disclosed
gasoline
gasoline compositions
high-quality
hydrocarbon
hydrocarbon gas
hydrocarbon gasoline
hydrocracking
hydrodeoxygenated
hydrodeoxygenation
hydrogenation
hydrogenation catalyst
hydroprocessing
intermediate
intermediate product
lignin
material
medium
naphthenic
paraffinic
polymerization reaction
presence
process
processing step
produce
produces
product
reaction
reaction medium
reaction process
reformulated
reformulated hydrocarbon
sequential
stage
step
subjected
supercritical
two-stage
two-step
various
yields