Process for hydrodealkylating alkylaromatic hydrocarbons

Details Process for hydrodealkylating alkylaromatic hydrocarbons Process for hydrodealkylating alkylaromatic hydrocarbons

1974-12-13

1976-06-29

Gantz, Delbert E.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

208135, 208136, 208138, C07C 358

Patent

active

039668339

ABSTRACT:
Process for hydrodealkylating an alkylaromatic hydrocarbon charge at a temperature from 400.degree. to 650.degree.C under a pressure from 1 to 30 kg/cm.sup.2 at a space velocity from 1 to 10 by reacting said charge with hydrogen in a molar proportion with respect to the effluent of the reactor in the range from 1 to 10, in the presence of a catalyst containing alumina and at least one metal selected from ruthenium, osmium, palladium, rhodium, iridium, platinum and manganese in an amount from 0.05 to 5 % of the catalyst, said catalyst having a specific surface from 1 to 100 m.sup.2 /g., a total pore volume of 0.2-0.8 g/cc and a heat of neutralization lower than 10 calories per gram are measured by ammonia adsorption at 320.degree. C. under 300 mm Hg.

REFERENCES:
patent: 2838444 (1958-06-01), Teter et al.
patent: 3291850 (1966-12-01), Carson
patent: 3306944 (1967-02-01), Pollitzer
patent: 3595932 (1971-07-01), Maslyansky et al.
patent: 3649707 (1972-03-01), Lester
patent: 3833516 (1974-09-01), Sawyer
patent: 3857780 (1974-12-01), Gustafson

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