石油炼制与化工 ›› 2016, Vol. 47 ›› Issue (4): 60-64.
• 催化剂 • 上一篇 下一篇
张璐璐,詹金友,刘鹏,沈健
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摘要：
采用后合成法制备了ZSM-5/SBA-15微孔介孔复合分子筛，通过XRD、N2吸附-脱附等表征手段对催化剂结构进行分析，结果表明，ZSM-5/SBA-15既具有微孔结构又具有介孔结构。将ZSM-5/SBA-15复合分子筛应用于甲苯甲醇烷基化反应，在反应温度为400 ℃、质量空速为2 h-1、甲苯甲醇摩尔比为2的反应条件下甲苯的转化率为17.35%，对二甲苯的选择性为62.78%，对二甲苯的收率为10.89%。
关键词: ZSM-5/SBA-15, 烷基化, 对二甲苯, 反应条件
Abstract:
The micro-mesoporous composite molecular sieves of ZSM-5/SBA-15 composite sieves were prepared by post-synthesis method and characterized by XRD and N2 adsorption-desorption. The results indicated that ZSM-5/SBA-15 has both ZSM-5 microporous and SBA-15 mesoporous structure. The ZSM-5/SBA-15 composite molecular sieves used in toluene alkylation reaction of methanol, As the reaction conditions of 120 ℃, WHSV of 2 h-1, the Toluene Methanol mole ratio of 2, Toluene conversion rate was 17.35%, the selectivity and the yield of the p-xylene is 62.78% and 10.89%,respectively.
Key words: ZSM-5/SBA-15, alkylation, p-xylene, reaction condition
张璐璐 詹金友 刘鹏 沈健. ZSM-5/SBA-15催化甲苯与甲醇烷基化反应的研究[J]. 石油炼制与化工, 2016, 47(4): 60-64.
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