Parallel hydrodesulfurization of naphtha and distillate streams

Details Parallel hydrodesulfurization of naphtha and distillate streams Parallel hydrodesulfurization of naphtha and distillate streams

1977-03-01

1978-09-26

Crasanakis, George

Mineral oils: processes and products

Refining

Sulfur removal

208218, 208364, C10G 2300

Patent

active

041168160

ABSTRACT:
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.

REFERENCES:
patent: 2866750 (1958-12-01), Mosesman
patent: 2897141 (1959-07-01), Honeycutt et al.
patent: 2953521 (1960-09-01), Bowles
patent: 3077448 (1963-02-01), Kardash et al.

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