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Advantages of hydrocracking reaction6/2/2023 This keeps the reactor temperature from cooling to the point that cracking will not occur and from rising too high as to jeopardize the safety of the operation. Hydrogen is also used to control the temperature of the reactor-it is fed into the reactor at different points. The saturation of the lighter hydrocarbons releases heat and causes the feed and products to heat up as they proceed through the reactor. A 6lump kinetic model and a reaction network of 11 individual steps is proposed to describe the hydrocracking of the HDPE/VGO blend ().Please note that VGO is mainly formed by HCO lump as it was described above ().The reaction scheme consists of a seriesparallel reaction network where all the lumps are hydrocracked in cascade from the heaviest to the lightest lump. The catalytic cracking of the heavier hydrocarbons uses heat and causes the feed to be cooled as it progresses through the reactor. There are two main chemical reactions occurring in the hydrocracker: catalytic cracking of heavy hydrocarbons into lighter unsaturated hydrocarbons and the saturation of these newly formed hydrocarbons with hydrogen. The hydrocracker upgrades low-quality heavy gas oils from the atmospheric or vacuum distillation tower, the fluid catalytic cracker, and the coking units into high-quality, clean-burning jet fuel, diesel, and gasoline. The two main chemical reactions in a hydrocracker are the catalytic cracking of heavy hydrocarbons into lighter unsaturated hydrocarbons and saturation of these. Source: Millennium Global, Inc., used with permission.Ī hydrocracking unit, or hydrocracker, takes gas oil, which is heavier and has a higher boiling range than distillate fuel oil, and cracks the heavy molecules into distillate and gasoline in the presence of hydrogen and a catalyst.
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