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

doi:10.1016/j.cjche.2016.12.002

›› 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 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 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/Abstract

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

S. M. Latifi, J. Bakhshi Azghandi, A. Salehirad, M. Parvini. A comparative study on H₂S removal using Mg-Al spinel (MgAl₂O₄) and MgO/Al₂O₃ nanocomposites[J]. , 2017, 25(9): 1329-1334.

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

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

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