Preparation and desulfurization performance of LaMeOx/SBA-15 for hot coal gas

B. S. Liu; X. N. Wei; Y. P. Zhan; R. Z. Chang; Fazle Subhan; C. T. Au

doi:10.1016/j.apcatb.2010.11.020

Preparation and desulfurization performance of LaMeO_x/SBA-15 for hot coal gas

B. S. Liu^*, X. N. Wei, Y. P. Zhan, R. Z. Chang, Fazle Subhan, C. T. Au

^*Corresponding author for this work

Department of Chemistry

Research output: Contribution to journal › Journal article › peer-review

92 Citations (Scopus)

Abstract

LaMeO_x/SBA-15 (Me=Zn, Co and Fe) desulfurizers were synthesized by a sol-gel method and their performance for H₂S removal from hot coal gas was investigated. The results of eight successive desulfidation-regeneration cycles revealed that the LaFeO₃/SBA-15 desulfurizer shows high performance and stability for H₂S removal. The results of BET, XPS, HRTEM and XRD characterization suggested that the SBA-15 structure of used LaMeO_x/SBA-15 remained intact. It was found that there is only partial reduction of Fe³⁺ ions in LaFeO₃/SBA-15 by hydrogen in hot coal gas, a factor considered to be favorable for LaFeO₃/SBA-15 sulfidation. The metal oxides supported on SBA-15 can effectively suppress mechanical disintegration and improve stability of LaMeO_x/SBA-15. Among the three desulfurizers, LaFeO₃/SBA-15 performs the best.

Original language	English
Pages (from-to)	27-36
Number of pages	10
Journal	Applied Catalysis B: Environmental
Volume	102
Issue number	1-2
DOIs	https://doi.org/10.1016/j.apcatb.2010.11.020
Publication status	Published - 1 Feb 2011

Scopus Subject Areas

Catalysis
General Environmental Science
Process Chemistry and Technology

User-Defined Keywords

Desulfurizers
Hot coal gas
Rare earth metal oxides
SBA-15

Access to Document

10.1016/j.apcatb.2010.11.020

Cite this

@article{456af8d2cd8a443db2d25e3fb9e0ebdf,

title = "Preparation and desulfurization performance of LaMeOx/SBA-15 for hot coal gas",

abstract = "LaMeOx/SBA-15 (Me=Zn, Co and Fe) desulfurizers were synthesized by a sol-gel method and their performance for H2S removal from hot coal gas was investigated. The results of eight successive desulfidation-regeneration cycles revealed that the LaFeO3/SBA-15 desulfurizer shows high performance and stability for H2S removal. The results of BET, XPS, HRTEM and XRD characterization suggested that the SBA-15 structure of used LaMeOx/SBA-15 remained intact. It was found that there is only partial reduction of Fe3+ ions in LaFeO3/SBA-15 by hydrogen in hot coal gas, a factor considered to be favorable for LaFeO3/SBA-15 sulfidation. The metal oxides supported on SBA-15 can effectively suppress mechanical disintegration and improve stability of LaMeOx/SBA-15. Among the three desulfurizers, LaFeO3/SBA-15 performs the best.",

keywords = "Desulfurizers, Hot coal gas, Rare earth metal oxides, SBA-15",

author = "Liu, {B. S.} and Wei, {X. N.} and Zhan, {Y. P.} and Chang, {R. Z.} and Fazle Subhan and Au, {C. T.}",

note = "Funding Information: We are grateful to the financial support of National Natural Science Foundation of China and BAOSTEEL Group Corporation (grant no. 50876122 ). We thank the Center for Surface Analysis and Research, HKBU, for XRD and XPS analyses.",

year = "2011",

month = feb,

day = "1",

doi = "10.1016/j.apcatb.2010.11.020",

language = "English",

volume = "102",

pages = "27--36",

journal = "Applied Catalysis B: Environmental",

issn = "0926-3373",

publisher = "Elsevier",

number = "1-2",

}

TY - JOUR

T1 - Preparation and desulfurization performance of LaMeOx/SBA-15 for hot coal gas

AU - Liu, B. S.

AU - Wei, X. N.

AU - Zhan, Y. P.

AU - Chang, R. Z.

AU - Subhan, Fazle

AU - Au, C. T.

N1 - Funding Information: We are grateful to the financial support of National Natural Science Foundation of China and BAOSTEEL Group Corporation (grant no. 50876122 ). We thank the Center for Surface Analysis and Research, HKBU, for XRD and XPS analyses.

PY - 2011/2/1

Y1 - 2011/2/1

N2 - LaMeOx/SBA-15 (Me=Zn, Co and Fe) desulfurizers were synthesized by a sol-gel method and their performance for H2S removal from hot coal gas was investigated. The results of eight successive desulfidation-regeneration cycles revealed that the LaFeO3/SBA-15 desulfurizer shows high performance and stability for H2S removal. The results of BET, XPS, HRTEM and XRD characterization suggested that the SBA-15 structure of used LaMeOx/SBA-15 remained intact. It was found that there is only partial reduction of Fe3+ ions in LaFeO3/SBA-15 by hydrogen in hot coal gas, a factor considered to be favorable for LaFeO3/SBA-15 sulfidation. The metal oxides supported on SBA-15 can effectively suppress mechanical disintegration and improve stability of LaMeOx/SBA-15. Among the three desulfurizers, LaFeO3/SBA-15 performs the best.

AB - LaMeOx/SBA-15 (Me=Zn, Co and Fe) desulfurizers were synthesized by a sol-gel method and their performance for H2S removal from hot coal gas was investigated. The results of eight successive desulfidation-regeneration cycles revealed that the LaFeO3/SBA-15 desulfurizer shows high performance and stability for H2S removal. The results of BET, XPS, HRTEM and XRD characterization suggested that the SBA-15 structure of used LaMeOx/SBA-15 remained intact. It was found that there is only partial reduction of Fe3+ ions in LaFeO3/SBA-15 by hydrogen in hot coal gas, a factor considered to be favorable for LaFeO3/SBA-15 sulfidation. The metal oxides supported on SBA-15 can effectively suppress mechanical disintegration and improve stability of LaMeOx/SBA-15. Among the three desulfurizers, LaFeO3/SBA-15 performs the best.

KW - Desulfurizers

KW - Hot coal gas

KW - Rare earth metal oxides

KW - SBA-15

UR - http://www.scopus.com/inward/record.url?scp=78651457747&partnerID=8YFLogxK

U2 - 10.1016/j.apcatb.2010.11.020

DO - 10.1016/j.apcatb.2010.11.020

M3 - Journal article

AN - SCOPUS:78651457747

SN - 0926-3373

VL - 102

SP - 27

EP - 36

JO - Applied Catalysis B: Environmental

JF - Applied Catalysis B: Environmental

IS - 1-2

ER -