Hydroisomerization processes using pre-sulfided catalysts
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United States of America Patent
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Issued Date -
Jun 30, 2005
app pub date -
Dec 30, 2003
filing date -
Dec 30, 2003
priority date (Note) -
Abandoned
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Abstract
The present application relates to methods for producing a lubricant base oil from a waxy hydrocarbon feed using a pre-sulfided shape selective, intermediate pore size, noble metal-containing molecular sieve catalyst. According to the present invention, a shape selective, intermediate pore size, noble metal-containing molecular sieve catalyst is pre-sulfided to provide a sulfided catalyst, wherein the molar ratio of sulfur to noble metal in the sulfided catalyst is greater than one, and a waxy hydrocarbon feed is hydroisomerized by contacting the waxy hydrocarbon feed with the sulfided catalyst at hydroisomerization conditions, to produce a lubricant base oil.
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