Single stage, stacked bed hydrotreating process utilizing a nobl

Details Single stage, stacked bed hydrotreating process utilizing a nobl Single stage, stacked bed hydrotreating process utilizing a nobl

1997-07-31

1999-02-09

Griffin, Walter D.

Mineral oils: processes and products

Chemical conversion of hydrocarbons

Plural serial stages of chemical conversion

208 97, 208143, 208210, 208211, 208212, C10G 4504, C10G 4544

Patent

active

058689214

ABSTRACT:
A hydrocarbon distillate fraction is hydrotreated in a single stage by passing the distillate fraction downwardly over a stacked bed of two hydrotreating catalysts. The catalyst in the upper bed contains 0.1 to 15% by weight of platinum and/or palladium and also contains 2 to 40% by weight of at least one of tungsten, chromium, a Group VIIB metal, and an actinium series metal supported on an acidic refractory oxide carrier. The catalyst in the lower bed contains 1 to 15% by weight of a non-noble Group VIII metal and 1 to 25% by weight of a Group VIB metal on an amorphous, refractory oxide carrier. The liquid hydrocarbon product recovered has a reduced content of aromatics and a reduced heteroatom content.

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patent: 4776945 (1988-10-01), Washecheck et al.
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International Search Report of 25 Nov. 1997.

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