- 作者: 柯安男 ; 郭清通
- 作者服務機構: 東海大學化學系
- 中文摘要: The conversion of 1,2,4-trimethylbenzene (1,2,4-TMB) over HY zeolite was studied at atmospheric pressure and 200- 300.degree.C by using a fixed-bed, integral-flow reactor. The types and initial selectivities of various products were obtained from plots of product selectivity according to the time-on-stream theory. The primary reaction included the isomerization and the disproportionation; the former led to the simultaneous formation of 1,2,3- and 1,3,5-TMB whereas the latter produced all isomers of xylene and tetramethyl-benzene. The relative initial rate of disproportionation to isomerization decreased from 12.6 at 200.degree.C to 5.47 at 300.degree.C. The activation energies for the primary reactions were estimated and compared with those in the reaction of 1,2,3-TMB.
- 英文摘要: --
- 中文關鍵字: Trimethylbenzene; Hy Zeolite; Isomerization; Disproportionation; Activation Energy
- 英文關鍵字: 三甲基苯;HY沸石;異構化;不勻化;活化能