Mineral oils: processes and products – Refining – Nitrogen contaminant removal
Patent
1989-06-05
1991-04-16
Myers, Helane
Mineral oils: processes and products
Refining
Nitrogen contaminant removal
208143, 208209, 208217, 208251H, 208216R, C10G 2300
Patent
active
050080032
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 in substantially non-sulfided form 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 a start-up hydrocarbonaceous oil feed having a sulfur content in the form of organosulfides of greater than 0.5 moles (basis elemental sulfur) per kilogram of start-up feed.
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In Re Vogal and Vogel 1644 SPQ 619, Court of Customs and Patent Appeal.
Nash Richard M.
Ryan Robert C.
Smegal John A.
Myers Helane
Shell Oil Company
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