谷乐,娄鑫玉,张金颐,孟祥太,张舜光

• 1:天津理工大学 化学化工学院，天津 300384

摘要(Abstract)：

针对多级孔分子筛制备工艺复杂、易产生相分离等问题，提出采用离子液体多功能模板剂制备ZSM-11分子筛。以溴化N-丁基-N-甲基哌啶（PP_1，4Br）和溴化N-辛基-N-甲基哌啶（PP_1，8Br）离子液体为复合模板剂，硅溶胶为硅源，偏铝酸钠为铝源，采用温和水热合成方法，制得ZSM-11分子筛。在模板剂总量不变时，考察了PP_1，4Br与PP_1，8Br的物质的量比n（PP_1，4Br）：n（PP_1，8Br）在1：6~6：1变化时，制得ZSM-11分子筛的结构、酸性及催化性能。结果表明，不同n（PP_1，4Br）：n（PP_1，8Br）下制得的ZSM-11分子筛，其结构和酸性都有所不同，进一步影响了其在苯甲醇烷基化反应中的催化性能，当n（PP_1，4Br）：n（PP_1，8Br）=5：2时，ZSM-11分子筛催化剂具有丰富的微孔、介孔和适宜的酸性，其催化性能较优，与现有工艺相比，在二甲苯选择性同为35%时，其苯的转化率可达68.16%，比现有报道高出近10%。

关键词(KeyWords)： ZSM-11;离子液体;水热合成;烷基化;催化剂

Abstract:

Keywords:

基金项目(Foundation): 天津市教委科研计划项目（2018KJ138）。

作者(Author): 谷乐,娄鑫玉,张金颐,孟祥太,张舜光

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