Chemicals from lignins by hydrogenation reactions. Final report, 1982-1983
Technical Report
·
OSTI ID:6243628
A series of screening studies on the batch hydrogenation of Kraft and organosolv lignins was performed at temperatures from 200 to 325/sup 0/C and hydrogen pressures of 350 to 2000 psig. The Kraft lignin results of Benigni and Goldstein were duplicated with the additional observation of a large number of EPA designated priority pollutants. From the head space analysis of the reactor, as much as 50% of the organosolv lignin charged was converted to methane gas. The increase of reaction temperature between 200 and 325/sup 0/C resulted in the conversion of the phenolic compounds into cyclohexyl derivatives. The bulk of the organosolv hydrogenation products were formed after three hours and the increase of treatment time to seven hours had little effect on the major products. The high pressure reactions greatly increased the formation of cyclopentanol, cyclohexanol, and substituted cyclohexanols. In the absence of catalyst, little hydrogenation took place and no methane gas was present in the head space of the reactor. However, the addition of two grams of Raney nickel catalyst increased the consumption of hydrogen five fold and the formation of methane was very significant. 27 references, 9 figures.
- Research Organization:
- Alabama Univ., University (USA). School of Mines and Energy Development
- OSTI ID:
- 6243628
- Report Number(s):
- NP-5900639; ON: TI85900639
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
09 BIOMASS FUELS
090122* -- Hydrocarbon Fuels-- Preparation from Wastes or Biomass-- (1976-1989)
140504 -- Solar Energy Conversion-- Biomass Production & Conversion-- (-1989)
ALKANES
CARBOHYDRATES
CATALYTIC EFFECTS
CHEMICAL REACTIONS
CHROMATOGRAPHY
DATA
ELEMENTS
EXPERIMENTAL DATA
GAS CHROMATOGRAPHY
HIGH PRESSURE
HIGH TEMPERATURE
HYDROCARBONS
HYDROGENATION
INFORMATION
LIGNIN
MEDIUM PRESSURE
METALS
METHANE
NICKEL
NUMERICAL DATA
ORGANIC COMPOUNDS
POLYSACCHARIDES
PRESSURE DEPENDENCE
PRODUCTION
SACCHARIDES
SEPARATION PROCESSES
TEMPERATURE DEPENDENCE
TRANSITION ELEMENTS
090122* -- Hydrocarbon Fuels-- Preparation from Wastes or Biomass-- (1976-1989)
140504 -- Solar Energy Conversion-- Biomass Production & Conversion-- (-1989)
ALKANES
CARBOHYDRATES
CATALYTIC EFFECTS
CHEMICAL REACTIONS
CHROMATOGRAPHY
DATA
ELEMENTS
EXPERIMENTAL DATA
GAS CHROMATOGRAPHY
HIGH PRESSURE
HIGH TEMPERATURE
HYDROCARBONS
HYDROGENATION
INFORMATION
LIGNIN
MEDIUM PRESSURE
METALS
METHANE
NICKEL
NUMERICAL DATA
ORGANIC COMPOUNDS
POLYSACCHARIDES
PRESSURE DEPENDENCE
PRODUCTION
SACCHARIDES
SEPARATION PROCESSES
TEMPERATURE DEPENDENCE
TRANSITION ELEMENTS