Color removal with post-hydrotreating

Mineral oils: processes and products – Refining – Sulfur removal

Patent

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Details

208210, 208216R, 208217, C10G 4904

Patent

active

054034701

ABSTRACT:
Diesel fuels are decolorized by hydrotreatment under mild conditions. The feedstock is normally severely hydrotreated to convert organosulfur or organonitrogen and the effluent passed to a smaller downstream hydrotreating zone at a lower temperature but sufficient to lighten the color of a finished product hydrocarbon.

REFERENCES:
patent: 3340183 (1967-09-01), Egan
patent: 3850744 (1974-11-01), Plundo et al.
patent: 4500424 (1985-02-01), Simpson et al.
patent: 4755280 (1988-07-01), Hudson et al.
patent: 4801373 (1989-01-01), Corman et al.
patent: 4990242 (1991-02-01), Louie et al.
patent: 5068025 (1991-11-01), Bhan
"Gas Oil Deep Desulfurization Process License Agreement", TEC Information Brochure, vol. 18, No. 1 (May 1993), p. 6.

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