燃料化学学报2013，Vol.41Issue(7)：889-896,8.
噻吩在稀土离子改性Y型分子筛上吸附与催化转化研究
Adsorption and catalytic conversion of thiophene on Y-type zeolites modified with rare-earth metal ions
摘要
Abstract
Rare earth metal modified Y zeolites (L-CeY) and USY zeolites (HRSY-3) were characterized by XRD,N2 adsorption,NH3-TPD,and in-situ Py-FHR; the adsorption and catalytic conversion behavior of thiophene on the modified zeolites were investigated by using the in situ FT-IR combined with TG-MS analysis.The results indicated that the original crystal structures of the zeolites remain unchanged after the modification with the rare earth metal ions; however,the modification results in the formation of partial mesoporous structure and weak Lewis acid sites related to the rare-earth ion species as well as certain decrease of the acidic strength of the strong acid sites.Thiophene molecules can be activated via protonization upon the Br(o)nsted acid sites of the USY and HY zeolites; however,the rare earth metal ions are able to promote the hydrogen transfer and oligomerization reactions,which can then enhance the catalytic cracking of thiophene reactions.关键词
噻吩/REY/吸附/氢转移/催化裂化Key words
thiophene/ REY/ adsorption/ hydrogen transfer/ catalytic cracking分类
能源科技引用本文复制引用
秦玉才,高雄厚,裴婷婷,郑兰歌,王琳,莫周胜,宋丽娟..噻吩在稀土离子改性Y型分子筛上吸附与催化转化研究[J].燃料化学学报,2013,41(7):889-896,8.基金项目
国家重点基础研究发展规划(973计划,2007CB216403) （973计划,2007CB216403）
国家自然科学基金(20976077,21076100) （20976077,21076100）
中国石油天然气股份有限公司(10-01A-01-01-01). （10-01A-01-01-01）
