波谱学杂志 ›› 1999, Vol. 16 ›› Issue (6): 521-524.

• 研究论文 • 上一篇    下一篇

固体13C NMR谱编辑方法研究改性丝光沸石结炭

艾选军1, 周建威1, 叶朝辉1, 潘履让2, 郭振亚3, 王旭4, 王敬中2, 丁大同3   

  1. 1. 中国科学院武汉物理与数学研究所 波谱与原子分子物理国家重点实验室, 武汉 430071;
    2. 南开大学化学系, 天津 300171;
    3. 南开大学物理系, 天津 300171;
    4. 南开大学催化剂厂, 天津 300071
  • 收稿日期:1999-07-01 修回日期:1999-08-18 出版日期:1999-12-05 发布日期:2018-01-13
  • 作者简介:艾选军,男,1970年出生,硕士生
  • 基金资助:
    国家自然科学基金资助项目(项目编号:29673056)

CHARACTERIZATION OF COKE ON MODIFIED H-MORDENITE ZEOLITE BY 13C NMR SPECTRAL EDITING METHOD

AI Xuanjun1, ZHOU Jianwei1, YE Chaohui1, PAN Lurang2, GUO Zhenpe3, WANG Xu4, WANG Jingzhon2, DING Datong3   

  1. 1. State Key Laboratory of Magenetic Resonance and Atomic and Molecular Physics, Wuhan Institute of Physics and Mathematics, The Chinese Academy of sciences, Wuhan 430071;
    2. Department of Chemistry, NanKai University, Tianjin 300071;
    3. Department of Physics, NanKai University, Tianjin 300071;
    4. Catalyst Factory, NanKai University, Tianjin 300071
  • Received:1999-07-01 Revised:1999-08-18 Online:1999-12-05 Published:2018-01-13

摘要: 通过13C CP/MASNMR技术,对经MgO改性后丝光沸石的结炭组成进行的研究表明,结炭的组成主要为缩聚程度较低的支链芳烃和少量烯烃;在保持分子筛活性的条件下分子筛的抗结炭能力较强,这可能与MgO改性后分子筛的酸性变化或孔径改变有关.

关键词: 丝光沸石, 改性分子筛, 结炭, 13C CP/MASNMR

Abstract: The components of coke, which were deposited on the MgO modified H-Mordenite zeolite, were studied by the 13C CP/MAS NMR spectral editing method in the present paper.The result shows that the major coke components were alkyl carbon and aromatic carbon,and the amount of deposited coke was dramatically reduced by the modified H-Mordenite zeolite.

Key words: Coke, Modified zeolite, 13C NMR Correspondence author