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- W3165455407 abstract "The co-processing of deoxygenated pyrolysis bio-oil with vacuum gas oil was studied in a hydroprocessing pilot plant. The bio-oil used as the biogenic component of the feed was produced by fast pyrolysis of forest biomass and pretreated via hydrodeoxygenation to improve its chemical stability. Two blends containing 5 and 7.5% deoxygenated bio-oil in hydrotreated vacuum gas oil were tested for hydrocracking at reaction temperatures of 385–400 °C, including tests with pure vacuum gas oil to establish a baseline for the study. Testing over 2154 catalyst hours showed that pyrolysis bio-oil co-processing did not impact much baseline hydrocracking selectivity, yielding similar amounts of naphtha and diesel at a given conversion of material boiling above 343 °C, but with increasing hydrogen consumption levels proportional to the amount of bio-oil in the feed. Periodic monitoring of catalyst stability during continuous operation showed no signs of enhanced catalyst aging as a result of co-processing the pyrolysis bio-oil blends. Characterization of the distillation fractions from the hydrocracked liquid products revealed differences in hydrocarbon-type composition and fuel properties for the same product streams from different bio-oil blends. The naphtha fraction from the 7.5% co-processing blend showed better octane number with respect to the other naphtha products, owing to its reduced paraffinic content. The diesel products from the two co-processing blends were slightly higher in aromatic content than the baseline diesel product, which caused a loss in cetane index. This study suggests that it is feasible to co-process pyrolysis bio-oil through hydrocracking provided that it has undergone pretreatment to stabilize reactive oxygen components." @default.
- W3165455407 created "2021-06-07" @default.
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- W3165455407 date "2021-05-26" @default.
- W3165455407 modified "2023-10-16" @default.
- W3165455407 title "Co-Processing of Deoxygenated Pyrolysis Bio-Oil with Vacuum Gas Oil through Hydrocracking" @default.
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- W3165455407 doi "https://doi.org/10.1021/acs.energyfuels.1c00822" @default.
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