Production of low sulfur distillate fuel

Details Production of low sulfur distillate fuel Production of low sulfur distillate fuel

1994-08-22

1995-04-25

McFarlane, Anthony

Mineral oils: processes and products

Refining

Sulfur removal

208 58, C10G 4500, C10G 6502

Patent

active

054095999

ABSTRACT:
Low sulfur distillate fuel oils such as road diesel oil having a maximum sulfur content of 0.05 weight percent, are produced by segregation of a distillate range feed into a lower boiling fraction and higher boiling fraction with the cut point between the two fractions between about 600.degree. and 650.degree. F. (about 315.degree. to 345.degree. C.). The higher boiling fraction is hydrodesulfurized under relatively severe conditions and then combined with the lower boiling fraction to be hydrodesulfurized under less severe conditions. Operation in this manner enables the refractory dibenzothiophenes to be removed while maintaining a lower hydrogen consumption.

REFERENCES:
patent: 3617526 (1971-11-01), Coons, Jr. et al.
patent: 4302323 (1981-11-01), Chen
patent: 4738766 (1988-04-01), Fischer et al.
patent: 4990242 (1991-02-01), Louie et al.
patent: 5011593 (1991-04-01), Ware et al.
Gates, McGraw-Hill, pp. 390-411 and 443-445 Chemistry of Catalytic Processes Amos et al. pp. 93-100 Hydrocarbon Processing Jun. 1992.

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