化学系学术报告

 报告题目：Modified ZSM-5 Catalyst for Methanol to Propylene
报告人：徐华龙教授复旦大学
主持人：高庆生教授
报告时间：2012年12月14日（星期五）10:30
报告地点：化学系317多媒体教室
报告人简介：
徐华龙，复旦大学化学系教授，于华东理工大学化学工程系毕业，获工学学学士、硕士学位，于复旦大学化学系获理学博士学位。1990至今在复旦大学化学系任教，2002年在荷兰TuDelft大学化工系任访问教授， 2010年在法国巴黎十一大化学系任访问教授。曾任化学系副系主任，主管化学系本科教学，2011年4月至今任化学系党委书记。研究领域主要从事工业催化研究，在高碳醇选择性催化氧化和化石能源高效转化催化剂研制及其应用方面开展了一系列研究工作。主持了科技部“863”重点项目“纳米介孔材料的研制及其在化学能源中的应用”、科技攻关项目和国家基金委“人才培养基金”项目。近5年来，在J. Catal., Applied Catal., Chem. Comm., Chem. Mater.等SCI期刊发表了相关研究论文25篇，获得中国发明专利20余项。研究成果先后获得国家科技进步奖、上海市科技进步一等奖和中国石油化工和化学工业科学技术进步奖发明一等奖。
 
报告摘要:
Modified ZSM-5 Catalysts for Methanol to Propylene
 
Hualong XU, Wei SHEN, Yi TANG, Dongyuan ZHAO, Jian LIU, Cao SUN, Junming DU
Department of Chemistry, Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials, Laboratory of Advanced Materials, Fudan University, Shanghai 200433
 
Modified high silica ZSM-5 catalysts have been designed and applied in methanol to propylene (MTP) process. The P modified ZSM-5 catalyst with high Si/Al ratio exhibited high selectivity and stability for MTP.The enhancement of propylene selectivity and stability can be attributed to partial elimination of the strong acid sites on the HZSM-5 catalyst [5]. B-Al-ZSM-5 zeolites with tunable acidity were synthesized by isomorphous substitution of boron into the zeolite framework; the catalysts exhibited prominent stability enhancement for methanol to propylene reaction [2]. A novel route for catalyst anti-deactivation enhancement through dehydrogenation inhibition within the coking process has been established in methanol to propylene (MTP) reaction over nano-gold modificated ZSM-5 catalyst, which reinforces the catalytic stability due to stabilization of dehydrogenation intermediates by nano-gold [1].
A novel route is proposed for the preparation of mesopore containing zeolite ZSM-5 via in situ hydrothermal treatment of the solution containing alkali-dissolved SBA-15 with carbonized surfactant P123 in the mesopores; it exhibited prominent stability enhancement for methanol to propylene reaction [4].The micro/mesoporous core-shell composite HZSM-5@SBA-15 (HZ@S15) was employed as a catalyst for MTP. Higher propylene to ethylene (P/E) ratio (10.7 %) compared to that for pure HZSM-5 (P/E=5-6 ), which attributes to the sacrificed strong acid sites on external surface of zeolite for the core-shell catalyst and large specific surface areas from mesoporous silica shells housing for reactants [3].
 
1．Dehydrogenation inhibition on nano-Au/ZSM-5 catalyst: a novel route for anti-coking in methanol to propylene reaction，Chem. Commun., 48(2012), 5787-5789.
2. The synthesis of endurable B-Al-ZSM-5 catalysts with tunable acidity for methanol to propylene reaction.
Catal.  Commun. , 24 (2012), 44-47
3. Controllable fabrication of uniform core–shell structured zeolite@SBA-15 composites
Chem. Sci. （http://pubs.rsc.org/en/journals/journal/sc ）, 2( 2011), 2006-2016
4. A facile route to synthesize endurable mesopore containing ZSM-5 catalyst for methanol to propylene reaction
Chem. Commun.， 46(2010), 2671-2673
5. Methanol to propylene: Effect of phosphorus on a high silica HZSM-5 catalyst
Catal.  Commun. , 10(2009), 1506-1509
 
 

作者：吉念宁