Fluid bed paraffin aromatization

Patent · Tue Oct 01 00:00:00 EDT 1991

OSTI ID:5677239

Soto, J L; Yurchak, S

This patent describes a method for increasing aromatics yield in a fluid bed catalytic paraffin conversion process. It comprises maintaining a fluid bed of catalyst in a reactor, the catalyst comprising a zeolite having a Constraint Index of from about 1 to about 12; determining the endothermic heat load profile of the reactor as a function of fluid bed height for a paraffinic feedstock containing at least 50% by weight of C{sub 3}-C{sub 8} paraffins under conditions of conversion temperature, average catalyst activity and weight hourly space velocity sufficient to convert the paraffinic feedstock to a product mixture containing at least 20% by weight of C{sub 5} + aromatics; contacting the selected paraffinic feedstock with the catalyst in the fluid bed under conversion conditions to convert at least a portion of the selected paraffinic feedstock to product stream containing at least 20% by weight of C{sub 5} + aromatics; and regulating the rate of heat transfer to the reactor and the location of heat transfer within the reactor in accordance with the heat load profile determined as a function of fluid bed height to increase aromatics yield by providing substantially isothermal reaction conditions within the fluid bed.

• Assignee: Mobil Oil Corp., Fairfax, VA (United States)
• Patent Number(s): US 5053570; A
• Application Number: PPN: US 7-524247
• OSTI ID: 5677239
• Resource Relation: Patent File Date: 16 May 1990
• Country of Publication: United States
• Language: English

Related Subjects

02 PETROLEUM
10 SYNTHETIC FUELS
AROMATICS
CATALYTIC CRACKING
ZEOLITES
CATALYTIC EFFECTS
AROMATIZATION
ENERGY CONVERSION
FLUIDIZED BED REACTORS
PARAFFIN
ALKANES
CHEMICAL REACTIONS
CONVERSION
CRACKING
DECOMPOSITION
FUEL DISPERSION REACTORS
HOMOGENEOUS REACTORS
HYDROCARBONS
INORGANIC ION EXCHANGERS
ION EXCHANGE MATERIALS
MATERIALS
MINERALS
ORGANIC COMPOUNDS
OTHER ORGANIC COMPOUNDS
PYROLYSIS
REACTORS
SILICATE MINERALS
THERMOCHEMICAL PROCESSES
WAXES
020400* - Petroleum- Processing
100200 - Synthetic Fuels- Production- (1990-)