摘要 |
A process for producing an alkylated aromatic compound comprises contacting an aromatic starting material and hydrogen with a plurality of catalyst particles under hydroalkylation conditions to produce an effluent comprising the alkylated aromatic compound, the catalyst comprising a composite of a solid acid, an inorganic oxide different from the solid acid and a hydrogenation metal, wherein the distribution of the hydrogenation metal in at least 60 wt% of the catalyst particles is such that the average concentration of the hydrogenation metal in the rim portion of a given catalyst particle is Crim, the average concentration of the hydrogenation metal in the outer portion of a given catalyst particle is Couter, the average concentration of the hydrogenation metal in the center portion of the given catalyst particle is Ccenter, where Crim/Ccenter ≥ 2.0 and/or Couter/Ccenter ≥ 2.0. Also disclosed are rimmed catalyst and process for making phenol and/or cyclohexanone using the catalyst. |
申请人 |
EXXONMOBIL CHEMICAL PATENTS INC. |
发明人 |
KISS, GABOR;GREEN, THOMAS, E.;HELTON, TERRY, E.;HORN, WILLIAM, C.;LAMBERTI, WILLIAM, A.;CHEN, TAN-JEN |