Abstract
A comparison is presented of the hydrotreatment of 4-propylguaiacol (4PG) exploring two catalysts: MoS//2 on gamma -alumina and the dual functionality MoS//2/NiS on phosphated gamma -alumina at 250 degree -450 degree C and 500 psig of hydrogen. The catalyst with acidic support was found to promote substantial dealkylation of 4PG into a number of alkylated phenols such as methyl- (predominantly meta- and para-), ethyl-, and methylpropylphenols. The main reaction product on the less acidic catalyst was 4-propylphenol. At 350 degree C, mild deoxygenation to phenols can be maximized, whereas higher temperatures favor the formation of hydrocarbons, aromatic and saturated. Higher space velocities also favor mild deoxygenation to phenols. These studies are relevant to the conversion of lignins into phenolic compounds. Transformation of phenols into methyl aryl ethers produces a suitable gasoline octane enhancer and extender.
Original language | American English |
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Pages | 249-256 |
Number of pages | 8 |
State | Published - 1987 |
Event | Production, Analysis and Upgrading of Oils from Biomass, Volume 32, No. 2 - Denver, Colorado Duration: 5 Apr 1987 → 10 Apr 1987 |
Conference
Conference | Production, Analysis and Upgrading of Oils from Biomass, Volume 32, No. 2 |
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City | Denver, Colorado |
Period | 5/04/87 → 10/04/87 |
NREL Publication Number
- ACNR/CP-234-8587