Catalytic conversion process for aromatic feedstocks with hydrogen regeneration of coke-selectivated zeolite catalyst

Patent · Tue Apr 02 04:00:00 EST 1985

OSTI ID:5425239

Haag, W O; Olson, D H; Rodewald, P G

In the process of converting an aromatic feedstock to an alkyl-substituted mono-nuclear aromatic product by contacting the feedstock with a coke-selectivated ZSM-5 type catalyst at elevated temperature under conversion process coking conditions to produce said alkyl-1-substituted mononuclear aromatic product selectively, the improvement which comprises: regenerating the process coked catalyst in contact with a non-oxidizing atmosphere comprising an effective amount of hydrogen at a temperature of about 800/sup 0/ F. to 1200/sup 0/ F. to restore activity of the catalyst while retaining selectivity. Advantageously, the conversion involves alkylation, disproportionation and/or isomerization to produce at least one lower alkyl or dialkyl benzene product.

• Assignee: Mobil Oil Corporation
• Patent Number(s): US 4508836
• OSTI ID: 5425239
• Country of Publication: United States
• Language: English

Related Subjects

02 PETROLEUM
020400* -- Petroleum-- Processing
ALKYLATION
AROMATICS
ATMOSPHERES
BENZENE
CARBONIZATION
CATALYTIC CRACKING
CATALYTIC EFFECTS
CHEMICAL REACTIONS
COKING
CONTROLLED ATMOSPHERES
CRACKING
DECOMPOSITION
ELEMENTS
HIGH TEMPERATURE
HYDROCARBONS
HYDROGEN
INORGANIC ION EXCHANGERS
ION EXCHANGE MATERIALS
ISOMERIZATION
MATERIALS
MINERALS
NONMETALS
ORGANIC COMPOUNDS
PRODUCTION
PYROLYSIS
REGENERATION
THERMOCHEMICAL PROCESSES
ZEOLITES