纳米薄层全硅分子筛用于气相Beckmann重排反应的催化性能研究

来源 :第十七届全国催化学术会议 | 被引量 : 0次 | 上传用户：CL87781891

【摘要】

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【作者】

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葛超刘晓臻李晓峰秦张峰窦涛樊卫斌王建国

【机构】

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中国科学院山西煤炭化学研究所煤转化国家重点实验室,太原,030024 太原理工大学精细化工研究所

【出处】

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第十七届全国催化学术会议

【发表日期】

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2014年1期

【关键词】

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Beckmann重排反应纳米薄层全硅分子筛环己酮肟己内酰胺结构导向剂

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论文部分内容阅读

采用不对称双头铵表面活性剂[C18H37-N+(CH3)2-C6H12-N+(CH3)2-C6H13](Br)2 水热合成了具有MFI 拓扑结构的纳米薄层全硅分子筛催化剂(NS),用于环己酮肟气相Beckmann 重排反应.XRD 和SEM 结果显示,所合成的纳米薄层片状结构分子筛结晶度较高;与纳米级Silicalite-1 分子筛(NM 200nm)相比,纳米薄层结构全硅分子筛在气相Beckmann 重排反应中表现出较高的催化活性、己内酰胺选择性和较长的催化寿命.在350 ℃、0.1 MPa、环己酮肟质量空速为4 h-1的条件下,反应72 h 后环己酮肟转化率依然可达94％.

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纳米薄层全硅分子筛用于气相Beckmann重排反应的催化性能研究

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