Process for improving the color and color stability of a hydroca

Details Process for improving the color and color stability of a hydroca Process for improving the color and color stability of a hydroca

1988-08-29

1990-01-30

Myers, Helane

Mineral oils: processes and products

Colorng treatments

208142, 208143, 208145, 208263, C10G 1700, C10G 4500

Patent

active

048971758

ABSTRACT:
This invention relates to a process for improving the color and color stability of a hydrocarbon fraction. The process involves contacting the hydrocarbon fraction with a selective hydrogenation catalyst in the presence of hydrogen at reaction conditions. This results in the selective hydrogenation of conjugated unsaturates, thereby improving the color and color stability of the hydrocarbon fraction. The process uses small quantities of hydrogen and is run under mild conditions.

REFERENCES:
patent: 2779711 (1957-01-01), Goretta
patent: 2793986 (1957-05-01), Lanning
patent: 2880166 (1959-03-01), Wilson
patent: 3050459 (1962-08-01), Schuman
patent: 3072564 (1963-01-01), Stewart, Jr.
patent: 3112259 (1963-11-01), Crawitz
patent: 3162597 (1964-12-01), Davis, Jr. et al.
patent: 3172839 (1965-03-01), Kozlowski
patent: 3189540 (1965-06-01), Kozlowski
patent: 3281352 (1966-10-01), Schuman

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