• The reduction-deposition method allows the formation of small Ru particles. Ru-Co/Al 2 O 3 displays up to five times higher CO conversion than that recorded with Ru/Al . Ru-Fe/Al also exhibits and -CH - production rates display a high oxygenates, mainly alcohols. have been prepared by method. This approach favours interaction between Fe or Co in final catalysts, while increasing surface enric...

Abstract The conversion of biomass-derived oxygenates over zeolite catalysts constitutes a challenge for the efficient production bio-based chemicals and fuels due to difficulty in controlling selectivity high coke formation such reactions. This is partly attributed microstructure catalyst which affects products derived from oxygenates. In this study, deactivation characteristics three differen...

Pyrolysis bio-oil is unsuitable as transportation fuel due to its chemical composition and high oxygen (>30 wt%) water (>20 content rendering the upgrading essential prior any downstream use. The current work investigates of a flash pyrolysis via mild hydrotreatment (HDT), targeting potential intermediate refinery feed. Various operating parameters HDT were tested, including three temperatures ...

Brevibacterium sp. strain DPO 1361 oxygenates dibenzofuran in the unusual angular position. The 3-(2-hydroxyphenyl)catechol thus generated is subject to meta ring cleavage in the proximal position, yielding 2-hydroxy-6-(2-hydroxyphenyl)-6-oxo-2,4-hexadienoic acid, which is hydrolyzed to 2-oxo-4-pentenoate and salicylate by 2-hydroxy-6-oxo-6-phenyl-2,4-hexadienoic acid hydrolase. The proximal mo...

In the present work, renewable oxygenates 2,5-dimethylfuran (DMF) and dimethyl ether (DME) are considered as alternatives to fossil fuels for gasoline engines. The effects of blending DMF DME on combustion surrogate numerically studied. is toluene primary reference fuel (TPRF) mixtures containing iso-octane, n-heptane, toluene. Two skeletal mechanisms proposed analysis: mechanism A with 504 spe...

Concerns for atmospheric pollution from auto exhaust have led to the blending of "oxygenates" with motor fuels. The most common oxygenate, methyl tert-butyl ether (MTBE) is currently required within several metropolitan areas (Denver and Phoenix) in the range of 12% of the motor fuel. Amendments to the Clean Air Act may expand this requirement to as many as 44 other areas of the United States i...