Lube hydrodewaxing method and apparatus with light product removal and enhanced lube yields

Patent · Tue Mar 10 04:00:00 EST 1987

OSTI ID:6679274

Graziani, K R; Kyan, C P

A method is described for hydrodewaxing a hydrocarbon feedstock comprising the steps of: (a) catalytically hydrodewaxing the feedstock by contact with a first intermediate pore crystalline zeolite catalyst under conditions sufficient to selectively convert waxy components comprising paraffins to produce a first effluent stream having an intermediate pour point of about 50/sup 0/ to about 70/sup 0/F, wherein the first effluent stream comprises olefins; (b) separating the first effluent stream to obtain a first vapor stream and a first liquid stream, the first liquid stream having an initial boiling point of at least 330/sup 0/F, wherein the first vapor stream comprises a portion of the olefins; and (c) catalytically hydrodewaxing the first liquid stream by contact with a second intermediate pore crystalline zeolite catalyst under conditions sufficient to selectively convert waxy components comprising paraffins to produce a second effluent stream having a pour point less than about 30/sup 0/F.

• Assignee: Mobil Oil Corp., New York, NY
• Patent Number(s): US 4648957
• OSTI ID: 6679274
• Country of Publication: United States
• Language: English

Related Subjects

02 PETROLEUM
020400* -- Petroleum-- Processing
ALKANES
ALKENES
BOILING POINTS
CATALYSTS
CHEMICAL PREPARATION
CHEMICAL REACTION YIELD
CHEMICAL REACTIONS
CRACKING
DECOMPOSITION
DEWAXING
FLUID FLOW
FLUIDS
GAS FLOW
GASES
HYDROCARBONS
HYDROCRACKING
HYDROGENATION
INORGANIC ION EXCHANGERS
ION EXCHANGE MATERIALS
LIQUID FLOW
LUBRICANTS
LUBRICATING OILS
MATERIALS
MEDIUM TEMPERATURE
MINERALS
OILS
ORGANIC COMPOUNDS
OTHER ORGANIC COMPOUNDS
PETROLEUM PRODUCTS
PHYSICAL PROPERTIES
POROSITY
POUR POINT
PYROLYSIS
SEPARATION PROCESSES
SYNTHESIS
THERMOCHEMICAL PROCESSES
THERMODYNAMIC PROPERTIES
TRANSITION TEMPERATURE
VAPORS
YIELDS
ZEOLITES