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Conversion of LPG hydrocarbons into distillate fuels using an integral LPG dehydrogenation-MOGD process

Patent ·
OSTI ID:6442336
;

This patent describes a process for converting lower paraffinic hydrocarbon feedstock comprising propane and/or butane into heavier hydrocarbons comprising gasoline and distillate, comprising the steps of: feeding the paraffinic feedstock to a dehydrogenation zone under conversion conditions for dehydrogenating at least a portion of the feedstock; recovering a first dehydrogenation gaseous effluent stream comprising propene and/or butene; contacting the first gaseous effluent steam with a liquid lean oil sorbent stream comprising C/sub 5//sup +/ hydrocarbons under sorption conditions to produce a C/sub 3//sup +/ rich liquid absorber stream and a light gas stream; sequentially pressurizing, heating and passing the C/sub 3//sup +/ rich liquid absorber stream to an oligomerization reactor zone at elevated temperature and pressure; contacting the C/sub 3//sup +/ rich stream with oligomerization catalyst in the oligomerization reactor zone for conversion of at least a portion of lower olefins to heavier hydrocarbons under oligomerization reaction conditions to provide a second reactor effluent stream comprising gasoline and distillate boiling range hydrocarbons; flash separating the second reactor effluent stream into a separator vapor stream comprising a major portion of the hydrocarbons which later form the lean oil stream, and a major portion of the C/sub 4//sup -/ hydrocarbons and a separator liquid stream comprising the gasoline and distillate boiling range materials produced in the oligomerization reactor zone; fractionating the separator liquid stream in a first product debutanizer tower into a first debutanizer overhead vapor stream comprising C/sub 4//sup -/ hydrocarbons and a product debutanizer liquid bottoms stream comprising C/sub 5//sup +/ gasoline and distillate boiling range hydrocarbons.

Assignee:
Mobil Oil Corp., New York, NY
Patent Number(s):
US 4675461
OSTI ID:
6442336
Country of Publication:
United States
Language:
English

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Related Subjects

02 PETROLEUM
020400* -- Petroleum-- Processing
ADSORPTION
ALKANES
ALKENES
BUTANE
CATALYSTS
CHEMICAL REACTION KINETICS
CHEMICAL REACTIONS
CHEMICAL REACTORS
DEHYDROGENATION
DISTILLATES
ENERGY SOURCES
FLUID FLOW
FLUIDS
FOSSIL FUELS
FRACTIONATION
FUELS
GAS FLOW
GASES
GASOLINE
HEATING
HYDROCARBONS
KINETICS
LIQUEFIED GASES
LIQUEFIED PETROLEUM GASES
LIQUID FUELS
LIQUIDS
NATURAL GAS LIQUIDS
ORGANIC COMPOUNDS
PETROLEUM
PETROLEUM DISTILLATES
PETROLEUM FRACTIONS
PETROLEUM PRODUCTS
POLYMERIZATION
PRESSURIZING
PROPANE
PROPYLENE
REACTION KINETICS
SEPARATION PROCESSES
SORPTION
VAPORS