| 季东,汪毅,刘涛,苏怡,李萍,高雄厚.高硅分子筛ZSM-23催化裂解C4烷烃制乙烯丙烯的研究[J].分子催化,2007,(3):193-199 |
| 高硅分子筛ZSM-23催化裂解C4烷烃制乙烯丙烯的研究 |
| Direct Synthesis, Characterization and Catalytic C4 Alkane Cracking Properties of Zeolite ZSM-23 |
| 投稿时间：2006-05-24 修订日期：2006-07-11 |
| DOI： |
| 中文关键词: ZSM-23,C4烷烃,催化裂解 |
| 英文关键词:ZSM-23,C4 alkane,Catalytic cracking |
| 基金项目: |
| 季东 汪毅 刘涛 苏怡 李萍 高雄厚 |
中国石油兰州化工研究中心 甘肃兰州730060(季东，汪毅，刘涛，苏怡，高雄厚)
，兰州石化公司催化剂厂 甘肃兰州730000(李萍)
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| 中文摘要: |
| 采用廉价的硅溶胶作为硅源,吡咯烷为模板剂,静态水热晶化法合成出不同硅铝比的ZSM-23分子筛.采用XRD,SEM,吡啶吸附红外光谱等技术,对合成的ZSM-23分子筛的结构、形貌、表面酸性质进行了表征.并进行了所制样品对C4烷烃催化裂解制乙烯丙烯反应催化性能的研究.本文详细考察了硅铝比、反应温度、反应空速以及催化剂稳定性等各种因素对催化性能的影响.结果表明,ZSM-23分子筛的乙烯丙烯收率达到56.0%,丁烷转化率达到88.9%. |
| 英文摘要: |
| Pure and well crystallized zeolite ZSM-23 zeolite with different Si/Al ratio were prepared under static hydrothermal conditions using pyrrolidine as template,colloidal silica as source of silica.The samples obtained were characterized by powder X-ray diffraction(XRD),N2 adsorption/desorption,scanning electron microscopy(SEM),and FTIR of adsorbed pyridine,and was very efficient and stable catalysts for the catalytic cracking of C4 alkane.The highest C4 alkane conversion of 88.9% and the total yields of ethylene and propylene of 56.0% were obteined. |
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