噻吩在稀土离子改性Y型分子筛上吸附与催化转化研究

秦玉才 高雄厚 裴婷婷 郑兰歌 王琳 莫周胜 宋丽娟

引用本文: 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. shu
Citation:  QIN Yu-cai, GAO Xiong-hou, PEI Ting-ting, ZHENG Lan-ge, WANG Lin, MO Zhou-sheng, SONG Li-juan. Adsorption and catalytic conversion of thiophene on Y-type zeolites modified with rare-earth metal ions[J]. Journal of Fuel Chemistry and Technology, 2013, 41(7): 889-896. shu

噻吩在稀土离子改性Y型分子筛上吸附与催化转化研究

    通讯作者: 宋丽娟
  • 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)

摘要: 以NaY、HY、液相Ce离子交换改性Y分子筛(L-CeY)和稀土离子改性超稳Y分子筛(HRSY-3)为研究对象,运用XRD、N2吸附、NH3-TPD和Py-FTIR表征样品的物化性能;采用原位红外光谱技术与程序升温脱附-同步质谱检测联用技术(TPD-MS)研究噻吩在活性中心上的吸附及催化转化行为.结果表明,稀土离子改性不改变分子筛晶体的基本结构但改变其精细结构,并形成一定的介孔,同时降低分子筛强酸位的强度,并生成与稀土离子物种有关的弱L酸位.REY与HY均可通过B酸中心的质子化作用活化噻吩,而稀土离子物种促进氢转移反应及低聚反应的进行,进而利于噻吩裂化反应的进行.

English

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  • 收稿日期:  2013-05-29
  • 网络出版日期:  2013-06-20
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