Abstract Isomerization studies have been carried out to improve the physical properties of tetrahydrotricyclopentadiene (THTCPD), which has been attracting attention as a liquid fuel for aviation and military use. However, there have been few studies on heterogeneous catalysts for environmentally friendly process until now. In this study, the isomerization activities over various alumino-silicate catalysts (ZSM-5, MOR, HY, Cu-HY, Al-MCM-41) were evaluated using a batch reactor, and the catalytic properties suitable for the reaction were investigated. The catalytic performances were significantly affected by the microchannel or pore size, acid strength and acid type of each catalyst. N2 adsorption-desorption, NH3-temperature-programmed-desorption and pyridine Fourier-transform-infra-red analyses indicated that the pore size of the catalyst and the acid strength on the catalyst surface affected the conversion rate of endo-THTCPD, and the type of acid on the catalyst surface affected the exo-THTCPD selectivity. The HY catalyst showed the highest yield and productivity among all of the catalysts evaluated. The study of the time-on-stream reaction over the HY catalyst showed that some by-products continued to increase during the reaction time, and there was an optimum reaction time to obtain the highest yield.

中文翻译：

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在硅铝酸盐催化剂上异构化内-外-四氢三环戊二烯

摘要 为了改善四氢三环戊二烯（THTCPD）的物理性能，已经进行了异构化研究，四氢三环戊二烯作为航空和军事用途的液体燃料一直受到关注。然而，迄今为止，关于用于环境友好过程的多相催化剂的研究很少。在这项研究中，使用间歇反应器评估了各种铝硅酸盐催化剂（ZSM-5、MOR、HY、Cu-HY、Al-MCM-41）的异构化活性，并研究了适合该反应的催化性能。催化性能受每种催化剂的微通道或孔径、酸强度和酸类型的显着影响。N2吸附-解吸，NH3-程序升温脱附和吡啶傅里叶变换-红外分析表明，催化剂的孔径和催化剂表面的酸强度影响endo-THTCPD的转化率，以及催化剂上酸的类型表面影响exo-THTCPD选择性。在所有评估的催化剂中，HY 催化剂显示出最高的产率和生产率。对HY催化剂的在线反应时间研究表明，在反应过程中，部分副产物不断增加，存在获得最高产率的最佳反应时间。在所有评估的催化剂中，HY 催化剂显示出最高的产率和生产率。对HY催化剂的在线反应时间研究表明，在反应过程中，部分副产物不断增加，存在获得最高产率的最佳反应时间。在所有评估的催化剂中，HY 催化剂显示出最高的产率和生产率。对HY催化剂的在线反应时间研究表明，在反应过程中，部分副产物不断增加，存在获得最高产率的最佳反应时间。