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Title: Study on the stability of sorbents removing H{sub 2}S from hot coal gas

Abstract

Mixed metal oxide containing iron with the high-sulfur capacity and reactivity is considered as one of the most favorable sorbents for desulfurization in hot gas. The stability and life of iron-based sorbents are the main challenges for the hot gas cleanup techniques. Not only the effect of gas atmosphere but also the effect of ZnO and MgO on the stability of iron-based sorbent was studied in this work. The mechanism and factors influencing sorbent stability are discussed. The results showed that the coexistence of CO and H{sub 2} result in the instability of the zinc-iron-based sorbents. The reaction of carbon deposit is the crucial step affecting the stability of sorbent for hot gas desulfurization. ZnO in the sorbent is adverse to the physical stability of the iron-based sorbents. MgO in the sorbent hardly affects the physical stability of the iron-based sorbents but improves the capacity of removing the hydrogen sulfide from hot coal gas at 773 K. 12 refs., 8 figs., 5 tabs.

Authors:
; ; ; ;  [1]
  1. Taiyuan University of Technology, Taiyuan (China)
Publication Date:
OSTI Identifier:
21162105
Resource Type:
Journal Article
Journal Name:
Energy and Fuels
Additional Journal Information:
Journal Volume: 23; Journal Issue: 2; Other Information: fanli@tyut.edu.cn; Journal ID: ISSN 0887-0624
Country of Publication:
United States
Language:
English
Subject:
01 COAL, LIGNITE, AND PEAT; OXIDES; IRON OXIDES; COAL GAS; HOT GAS CLEANUP; ADSORBENTS; DESULFURIZATION; ZINC OXIDES; MAGNESIUM OXIDES; STABILITY; HYDROGEN SULFIDES

Citation Formats

Chang, Li-Ping, Zhang, Zong-You, Ren, Xiu-Rong, Li, Fan, and Xie, Ke-Chang. Study on the stability of sorbents removing H{sub 2}S from hot coal gas. United States: N. p., 2009. Web. doi:10.1021/ef8005838.
Chang, Li-Ping, Zhang, Zong-You, Ren, Xiu-Rong, Li, Fan, & Xie, Ke-Chang. Study on the stability of sorbents removing H{sub 2}S from hot coal gas. United States. https://doi.org/10.1021/ef8005838
Chang, Li-Ping, Zhang, Zong-You, Ren, Xiu-Rong, Li, Fan, and Xie, Ke-Chang. 2009. "Study on the stability of sorbents removing H{sub 2}S from hot coal gas". United States. https://doi.org/10.1021/ef8005838.
@article{osti_21162105,
title = {Study on the stability of sorbents removing H{sub 2}S from hot coal gas},
author = {Chang, Li-Ping and Zhang, Zong-You and Ren, Xiu-Rong and Li, Fan and Xie, Ke-Chang},
abstractNote = {Mixed metal oxide containing iron with the high-sulfur capacity and reactivity is considered as one of the most favorable sorbents for desulfurization in hot gas. The stability and life of iron-based sorbents are the main challenges for the hot gas cleanup techniques. Not only the effect of gas atmosphere but also the effect of ZnO and MgO on the stability of iron-based sorbent was studied in this work. The mechanism and factors influencing sorbent stability are discussed. The results showed that the coexistence of CO and H{sub 2} result in the instability of the zinc-iron-based sorbents. The reaction of carbon deposit is the crucial step affecting the stability of sorbent for hot gas desulfurization. ZnO in the sorbent is adverse to the physical stability of the iron-based sorbents. MgO in the sorbent hardly affects the physical stability of the iron-based sorbents but improves the capacity of removing the hydrogen sulfide from hot coal gas at 773 K. 12 refs., 8 figs., 5 tabs.},
doi = {10.1021/ef8005838},
url = {https://www.osti.gov/biblio/21162105}, journal = {Energy and Fuels},
issn = {0887-0624},
number = 2,
volume = 23,
place = {United States},
year = {Thu Jan 15 00:00:00 EST 2009},
month = {Thu Jan 15 00:00:00 EST 2009}
}