Start-up of a hydrorefining process

Details Start-up of a hydrorefining process Start-up of a hydrorefining process

1989-06-05

1991-04-09

Myers, Helane

Mineral oils: processes and products

Refining

Nitrogen contaminant removal

208251H, 208216R, 208217, 208209, 208143, C10G 2300

Patent

active

050062247

ABSTRACT:
The instant invention comprises an improved hydrorefining process which comprises contacting hydrocarbonaceous oil feed and hydrogen with a catalyst comprising a hydrogenation component selected from the group consisting of Group VIB metal component, Group VIII non-noble metal component and mixtures thereof, optionally comprising a phosphorous-containing component or compound, and an alumina-containing support, at hydrorefining conditions, wherein the improvement comprises heating the catalyst at initial start-up from a temperature below about 450.degree. F. to hydrorefining temperature at an average rate of less than 30.degree. F. per hour in the presence of hydrogen and said oil feed.

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164USPQ619 in re Vogel and Vogel, pp. 619-623, Court of Customs and Pat. Appeals.

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