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
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Related Subjects
02 PETROLEUM
020400* -- Petroleum-- Processing
ALKALI METALS
ALUMINIUM COMPOUNDS
ALUMINIUM OXIDES
CATALYSTS
CATALYTIC EFFECTS
CHALCOGENIDES
CHEMICAL COMPOSITION
CHEMICAL PREPARATION
DEWAXING
ELEMENTS
HYDROCARBONS
INORGANIC ION EXCHANGERS
ION EXCHANGE MATERIALS
MATERIALS
METALS
MINERALS
ORGANIC COMPOUNDS
OXIDE MINERALS
OXIDES
OXYGEN COMPOUNDS
SEPARATION PROCESSES
SILICA
SILICON COMPOUNDS
SILICON OXIDES
SYNTHESIS
ZEOLITES
020400* -- Petroleum-- Processing
ALKALI METALS
ALUMINIUM COMPOUNDS
ALUMINIUM OXIDES
CATALYSTS
CATALYTIC EFFECTS
CHALCOGENIDES
CHEMICAL COMPOSITION
CHEMICAL PREPARATION
DEWAXING
ELEMENTS
HYDROCARBONS
INORGANIC ION EXCHANGERS
ION EXCHANGE MATERIALS
MATERIALS
METALS
MINERALS
ORGANIC COMPOUNDS
OXIDE MINERALS
OXIDES
OXYGEN COMPOUNDS
SEPARATION PROCESSES
SILICA
SILICON COMPOUNDS
SILICON OXIDES
SYNTHESIS
ZEOLITES