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Process for converting heavy petroleum fractions for producing a catalytic cracking feedstrock and middle distillates with a low sulfur content
Process for converting heavy petroleum fractions for producing a catalytic cracking feedstrock and middle distillates with a low sulfur content
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机译:转化重质石油馏分的方法,以生产低硫含量的催化裂化原料油和中间馏分油
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摘要
The invention relates to a process and installation for treating heavy petroleum feedstocks for producing a gas oil fraction that has a sulfur content of less than 50 ppm and most often 10 ppm that includes the following stages: a) mild hydrocracking in a fixed catalyst bed, b) separation from hydrogen sulfide of a distillate fraction that includes a gas oil fraction and a heavier fraction than the gas oil, c) hydrotreatment (including desulfurization) of said distillate fraction, and d) separation of a gas oil fraction with less than 50 ppm of sulfur. Advantageously, the heavy fraction is sent into catalytic cracking. The process preferably operates with make-up hydrogen that is brought to stage c), and very advantageously all of the make-up hydrogen of the process in introduced in stage c).
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