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研究了几种改性丝光沸石催化剂上甲苯选择歧化反应。试验结果表明,二甲苯中对-二甲苯含量随甲苯转化率的下降而增大。此结果与二甲苯在丝光沸石孔道中的扩散速度和物料在反应区的停留对间有关。
Toluene selective disproportionation reactions on several modified mordenite catalysts were investigated. The experimental results show that the para-xylene content in xylene increases with the decrease of toluene conversion. This result is related to the diffusion rate of xylene in the mordenite pores and the residence time of the material in the reaction zone.