石油化工高等学校学报

石油化工高等学校学报 ›› 2018, Vol. 31 ›› Issue (5): 17-21.DOI: 10.3969/j.issn.1006-396X.2018.05.003

• 石油化工 • 上一篇    下一篇

频率响应法研究噻吩在Hβ分子筛上的传质行为

刘金玲1，秦玉才1，惠 宇1，宋丽娟1,2   

  1. （1.辽宁石油化工大学 辽宁省石油化工催化科学与技术重点实验室，辽宁 抚顺 113001；2.中国石油大学（华东） 化学工程学院 ，山东 青岛 266555）
  • 收稿日期:2018-03-15 修回日期:2018-05-26 出版日期:2018-10-26 发布日期:2018-11-02
  • 通讯作者: 宋丽娟（1962⁃），女，博士，教授，博士生导师，从事分子筛催化性能与表征研究；E⁃mail：lsong56@263.net
  • 作者简介:刘金玲（1990?），女，硕士研究生，从事分子筛吸附扩散行为研究；E?mail：1273644809@qq.com
  • 基金资助:
    国家自然科学基金项目（U1662135，21376114）

Transfer Behavior of Thiophene on Hβ Zeolite by Frequency Response Method

Liu Jinling1，Qin Yucai1，Hui Yu1，Song Lijuan1,2   

  1. （1.Key Laboratory of Petrochemical Catalytic Science of Liaoning Province, Liaoning Shihua University,Fushun Liaoning 113001,China;2.College of Chemistry and Chemical Engineering, China University of Petroleum (East China),Qindao Shandong 266555,China)
  • Received:2018-03-15 Revised:2018-05-26 Published:2018-10-26 Online:2018-11-02

PDF

摘要： 用盐酸溶液改性Hβ分子筛，采用XRD、N2吸附⁃脱附、NH3⁃TPD等手段对Hβ分子筛晶体结构、织构性质和酸量等进行表征，以噻吩为探针分子，采用频率响应技术研究了盐酸改性Hβ分子筛对其吸附扩散性能的影响。结果表明，盐酸改性Hβ分子筛后，溶解了堵塞在Hβ分子筛孔道内的非骨架铝，增强了分子筛孔道的贯通性，提高了分子筛的传质性能。在频率响应谱图中，噻吩在改性的Hβ分子筛中传质过程的响应强度明显大于在未改性的分子筛中传质过程的响应强度，盐酸改性后Hβ分子筛的传质性能得到了改善，吸附噻吩脱硫的能力明显增强，这对催化噻吩反应、优化工业脱硫具有重要意义。

关键词: 盐酸改性, Hβ分子筛, 频率响应, 传质性能

Abstract: Hβ zeolites were modified by hydrochloric acid. The crystal structure, textual properties and total acid content of the Hβ zeolites were characterized by XRD, N2 adsorption and NH3­TPD. Using thiophene as the probe molecule, the mass transfer behavior of Hβ zeolites modified by hydrochloric acid was studied by Frequency Response. The results showed that hydrochloric acid washed away the non skeleton aluminum which blocked the pore of zeolites, enhanced the permeability of molecular sieve pore and improved the mass transfer performance of the molecular sieve. In the frequency response spectrum, the response intensity of thiophene in the modified Hβ zeolites was obviously greater than that in the unmodified zeolite. The mass transfer performance of modified Hβ zeolites was improved, and the ability to adsorb thiophene was also enhanced obviously, which was significant for catalyzing thiophene reaction and optimizing industrial desulfurization.

Key words: Modification of hydrochloric acid, H&beta, zeolite, Frequency response, Mass transfer performance

引用本文

刘金玲，秦玉才，惠 宇，宋丽娟. 频率响应法研究噻吩在Hβ分子筛上的传质行为[J]. 石油化工高等学校学报, 2018, 31(5): 17-21.

Liu Jinling，Qin Yucai，Hui Yu，Song Lijuan. Transfer Behavior of Thiophene on Hβ Zeolite by Frequency Response Method[J]. Journal of Petrochemical Universities, 2018, 31(5): 17-21.

使用本文

0
    /   /   推荐

导出引用管理器 EndNote|Ris|BibTeX

链接本文: http://journal.lnpu.edu.cn/syhg/CN/10.3969/j.issn.1006-396X.2018.05.003

               http://journal.lnpu.edu.cn/syhg/CN/Y2018/V31/I5/17



网站版权 © 2021《石油化工高等学校学报》编辑部

本系统由北京玛格泰克科技发展有限公司设计开发