Poly-functional Catalyst Development for Benzene Production from Alkyl-aromatic Mixture via Hydrodealkylation |
| |
Authors: | A Karaduman E Alp H Yeniova R Alibeyli |
| |
Affiliation: |
a Department of Chemical Engineering, Ankara University, Ankara, Turkey
b Ankara University, Science and Technology Research and Application Center, Ankara, Turkey |
| |
Abstract: | Development of a poly-functional catalyst that has higher hydrodealkylation activity based on 15% Cr/γ- Al2 O3 was researched for benzene production from an alkyl-aromatic mixture via hydrodealkylation. For this goal, the effects of the promoters like Fe, Co, or Ni and their concentrations on the activity of a Cr/Al2 O3 catalyst were investigated. Toluene + n-heptane + tetrahydrotiophene (89:10:1 w%) model mixture, which has the same content as industrial aromatics, was used as feedstock. The activities of catalysis in reactions of hydrodealkylation, hydrocracking, and hydrogenolize with respect to conversions of toluene, heptane, and tetrahydrotiophene were tested, respectively. As to the obtained results, the catalyst including 5% Fe has a higher hydrodealkylation activity, compared to the catalyst including Co, and especially to the alumocrom catalyst not including a promoter, while it has a lower coke formation and reduced activity to the catalyst including Ni. |
| |
Keywords: | alumocrom catalyst benzene hydrocracking hydrodealkylation hydrogenolize polyfunctional catalyst promoter |
本文献已被 InformaWorld 等数据库收录! |
|