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- W1978295491 abstract "Abstract A two-stage pyrolysis technique for the catalytic pyrolysis of a heavy distillate separated from Egyptian crude oil has been investigated. Five different catalysts were used (silica-alumina, amorphous silica-alumina impregnated with 2.5 wt.% La2O3 as a promoter, Degussa silica-alumina containing 20% alumina, 13X Zeolite, and chromia-alumina), as well as a series of reaction temperatures, reaction times and contact times. Two-stage catalytic pyrolysis using a chromia-alumina catalyst provides multiple advantages over non-catalytic two-stage pyrolysis techniques previously employed. The use of a chromia-alumina catalyst not only improved the yield of total unsaturated hydrocarbons (up to 45.1 wt.%) but also provided selectivity in the final products, as is reflected in the production of isopentane in a marketable amount (6.0–8.7 wt.%)." @default.
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- W1978295491 date "1995-04-01" @default.
- W1978295491 modified "2023-09-25" @default.
- W1978295491 title "Upgrading heavy ends into marketable products. New concepts and new catalysts for two-stage catalytic pyrolysis" @default.
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- W1978295491 doi "https://doi.org/10.1016/0165-2370(94)00888-8" @default.
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