Process for improving the color and oxidation stability of hydro

Details Process for improving the color and oxidation stability of hydro Process for improving the color and oxidation stability of hydro

1985-07-31

1988-07-05

Sneed, Helen M. S.

Mineral oils: processes and products

Chemical conversion of hydrocarbons

With preliminary treatment of feed

208 49, 208 57, 208 58, 208 97, 208210, 208211, 208212, 208213, C10G 6512, C10G 4500

Patent

active

047552808

ABSTRACT:
A process for improving the color and oxidation stability of feed characterized as an admixture of liquid hydrocarbon compounds, inclusive of fused multi-ring aromatic and hydroaromatic hydrocarbons. This feed, which boils within a range of from about 224.degree. C. to about 538.degree. C. and contains moderate to high concentrations of organic sulfur and organic nitrogen compounds, is (1) hydrotreated over a hydrotreating catalyst at hydrotreating conditions, or (2) hydrotreated over a hydrotreating catalyst at hydrotreating conditions and the high boiling product therefrom hydrocracked over a hydrocracking catalyst at hydrocracking conditions, to obtain a low sulfur, low nitrogen product which is contacted as a feed in the presence of hydrogen, over a catalyst comprised of elemental iron and one or more alkali or alkaline-earth metals components at hydrogen partial pressure and temperature sufficient to improve product color, or stablize the product against light and oxygen degradation, or both.

REFERENCES:
patent: 3272734 (1966-09-01), MacLaren
patent: 3718734 (1973-02-01), Christensen et al.
patent: 3899543 (1975-08-01), Cosyns et al.
patent: 4066530 (1978-01-01), Aldridge et al.
patent: 4067799 (1978-01-01), Bearden et al.
patent: 4420332 (1983-12-01), Mori et al.
patent: 4421635 (1983-12-01), Murakami et al.
patent: 4451354 (1984-05-01), Stuntz

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