| 摘要 |
Process for hydrodealkylating an alkylaromatic hydrocarbon charge at a temperature from 400 DEG to 650 DEG C under a pressure from 1 to 30 kg/cm2 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 m2/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 DEG C. under 300 mm Hg. |
