Process for the production of low-sulfur diesel gas oil

Details Process for the production of low-sulfur diesel gas oil Process for the production of low-sulfur diesel gas oil

1992-07-15

1994-05-31

Breneman, R. Bruce

Mineral oils: processes and products

Refining

Sulfur removal

208 15, 208210, 208217, C10G 4504

Patent

active

053166582

ABSTRACT:
A process for the production of a low-sulfur diesel gas oil having a sulfur content of 0.05% by weight or lower and having a Saybolt color number of -10 or higher, from a petroleum distillate having a sulfur content of 0.1 to 2.0% by weight and having an inferior color and inferior oxidation stability comprises contacting the petroleum distillate with hydrogen in the presence of a hydro-treating catalyst which has at least one metal supported on said porous carrier, at a temperature of 350.degree. to 450.degree. C., and a pressure of 45 to 100 kg/cm.sup.2 in the first step to thereby produce materials having a sulfur content of 0.05% by weight or lower, and contacting further the materials issued from the first step with hydrogen in the presence of a hydro-treating catalyst which has at least one metal supported on said porous carrier, at a temperature of 200.degree. to 300.degree. C., and a pressure of 45 to 100 kg/cm.sup.2 in the second step to thereby produce the finished low-sulfur diesel gas oil.

REFERENCES:
patent: 3392112 (1968-07-01), Bercik et al.
patent: 3841995 (1974-10-01), Bertolacini et al.
patent: 3844932 (1974-10-01), Gomi et al.
patent: 4048060 (1977-09-01), Riley
patent: 4629553 (1986-12-01), Hudson et al.

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