SCI和EI收录∣中国化工学会会刊

›› 2017, Vol. 25 ›› Issue (9): 1329-1334.DOI: 10.1016/j.cjche.2016.12.002

• Materials and Product Engineering • 上一篇    下一篇

A comparative study on H2S removal using Mg-Al spinel (MgAl2O4) and MgO/Al2O3 nanocomposites

S. M. Latifi1, J. Bakhshi Azghandi2, A. Salehirad1, M. Parvini2   

  1. 1 Department of Chemical Technology, Iranian Research Organization for Science & Technology, Tehran, Iran;
    2 Chemical Engineering, Oil & Gas, Semnan University, Semnan, Iran
  • 收稿日期:2016-10-15 修回日期:2016-12-06 出版日期:2017-09-28 发布日期:2017-10-11
  • 通讯作者: S. M. Latifi,E-mail:latifi@irost.ir
  • 基金资助:
    Supported by the National Science Foundation of Iran (INSF).

A comparative study on H2S removal using Mg-Al spinel (MgAl2O4) and MgO/Al2O3 nanocomposites

S. M. Latifi1, J. Bakhshi Azghandi2, A. Salehirad1, M. Parvini2   

  1. 1 Department of Chemical Technology, Iranian Research Organization for Science & Technology, Tehran, Iran;
    2 Chemical Engineering, Oil & Gas, Semnan University, Semnan, Iran
  • Received:2016-10-15 Revised:2016-12-06 Online:2017-09-28 Published:2017-10-11
  • Supported by:
    Supported by the National Science Foundation of Iran (INSF).

摘要: In this work MgO/Al2O3 nanocomposites with weight ratios from 5% to 25% were synthesized by precipitationimpregnation method and their structural properties were characterized. In the next step, the capability of the nanocomposites in H2S removal compared to Mg-Al spinel (MgAl2O4), synthesized through ion-pair complex precursor route and alumina samples, prepared via sol-gel precipitation methods, was investigated. The results indicated that among the studied sorbents Mg-Al spinel presents a distinctly higher H2S removal. In addition, the MgO/Al2O3 nanocomposites compared to the alumina sorbents, exhibited much better performance in H2S removal. Also CO2-TPD analysis reveals higher amounts of basic sites for Mg-Al spinel compared to 25 wt% MgO/75 wt% Al2O3 nanocomposite.

关键词: Nanomaterials, Adsorption, Alumina, Desulfurization, MgO

Abstract: In this work MgO/Al2O3 nanocomposites with weight ratios from 5% to 25% were synthesized by precipitationimpregnation method and their structural properties were characterized. In the next step, the capability of the nanocomposites in H2S removal compared to Mg-Al spinel (MgAl2O4), synthesized through ion-pair complex precursor route and alumina samples, prepared via sol-gel precipitation methods, was investigated. The results indicated that among the studied sorbents Mg-Al spinel presents a distinctly higher H2S removal. In addition, the MgO/Al2O3 nanocomposites compared to the alumina sorbents, exhibited much better performance in H2S removal. Also CO2-TPD analysis reveals higher amounts of basic sites for Mg-Al spinel compared to 25 wt% MgO/75 wt% Al2O3 nanocomposite.

Key words: Nanomaterials, Adsorption, Alumina, Desulfurization, MgO