Upgrading light olefins in a turbulent fluidized catalyst bed reactor

Patent · Tue May 24 00:00:00 EDT 1988

OSTI ID:6956550

Avidan, A A; Chou, T S; Owen, H; Soto, J L; Tabak, S A

A fluidized bed catalytic process for conversion of a light olefinic gas feedstock is described comprising at least 2 mol % ethene and having a total C/sub 2/-C/sub 3/ alkene content up to 40 wt%, to hydrocarbon rich in C/sub 4/+ aliphatics and aromatics, comprising the steps of maintaining a turbulent fluidized bed in a reactor operating at a pressure in the range from about 410 to 2500 kPa, and temperature of about 315/sup 0/ to 410/sup 0/C.; passing hot light olefinic gas feedstock in the substantial absence of added propane upwardly through the fluidized catalyst bed in a single pass under turbulent flow conditions which provide reaction severity conditions sufficient to convert at least about 70% of feedstock ethene; maintaining turbulent fluidized bed conditions at a superficial feedstock velocity of about 0.3 to 2 meters per second, through the reactor bed having an average fluidized bed density, measured at the bottom of the reaction zone, in the range from about 300 to 500 kg/m/sup 3/; and recovering hydrocarbon product containing a major amount of C/sub 4/+ hydrocarbons, at least 6% isobutane, and containing propane and propene in a ratio in the range from about 0.2:1 to 5:1.

• Assignee: Mobil Oil Corp., New York, NY
• Patent Number(s): US 4746762
• OSTI ID: 6956550
• Country of Publication: United States
• Language: English

Related Subjects

2-METHYLPROPANE
37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400201* -- Chemical & Physicochemical Properties
ALKANES
ALKENES
ALUMINIUM COMPOUNDS
ALUMINIUM OXIDES
CATALYSTS
CHALCOGENIDES
CHEMICAL COMPOSITION
CHEMICAL REACTORS
CONVERSION
FLUID FLOW
FLUIDIZED BEDS
HYDROCARBONS
INORGANIC ION EXCHANGERS
ION EXCHANGE MATERIALS
MATERIALS
MINERALS
ORGANIC COMPOUNDS
OXIDES
OXYGEN COMPOUNDS
PROCESSING
PROPANE
PROPYLENE
SILICON COMPOUNDS
SILICON OXIDES
TURBULENT FLOW
ZEOLITES