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Parallel hydrodesulfurization of naphtha and distillate streams with passage of distillate overhead as reflux to the naphtha distillation zone
Parallel hydrodesulfurization of naphtha and distillate streams with passage of distillate overhead as reflux to the naphtha distillation zone
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机译：石脑油和馏出物流进行并行加氢脱硫，馏出塔顶馏出物回流至石脑油蒸馏区
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摘要
In a hydrodesulfurization process having separate naphtha and distillate hydrodesulfurization zones, volatile fractions of the distillate hydrodesulfurization effluent are recycled to the naphtha feed stream before it combines with the hydrogen stream and enters the hydrodesulfurization zone and heavy fractions separated from the naphtha hydrodesulfurization effluent are combined with a diesel fuel oil fraction separated from the distillate hydrodesulfurization effluent. Alternatively, light fractions separated from the distillate hydrodesulfurization effluent are combined with a condensed liquid stream being returned to a distillation fractionation zone separating light fractions from the naphtha hydrodesulfurization effluent.
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