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U.S. Department of Energy
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Hydrocarbon dewaxing process using steam activiated alkali metal zeolite catalyst

Patent ·
OSTI ID:5403514
In a hydrodewaxing process wherein wax-containing hydrocarbon feedstock is passed over a zeolite dewaxing catalyst in the presence of hydrogen under dewaxing conditions of elevated temperature and pressure, said catalyst comprising alkali metal zeolites having a silica to alumina greater than about 12, a constraint index of about 1 to 12, and an initial alpha value less than about 2; the improvement which comprises: forming a mixture of the alkali metal zeolite with alumina and steaming the mixture at a temperature of at least about 300/sup 0/ C. for at least two hours to increase alpha value.
Assignee:
Mobil Oil Corporation
Patent Number(s):
US 4510045
OSTI ID:
5403514
Country of Publication:
United States
Language:
English