Regeneration and sulfur poisoning behavior of In/H-BEA catalyst for NO                         x                          reduction by CH                         4

Hua Pan; Yanfei Jian; Yanke Yu; Chi He; Zhenxing Shen; Hongxia Liu

doi:10.1016/j.apsusc.2016.12.201

Regeneration and sulfur poisoning behavior of In/H-BEA catalyst for NO _x reduction by CH ₄

Hua Pan
, Yanfei Jian
, Yanke Yu
, Chi He
, Zhenxing Shen
, Hongxia Liu

School of Energy and Power Engineering

Xi'an Jiaotong University

Research output: Contribution to journal › Article › peer-review

43 Scopus citations

Abstract

Sulfur poisoning and regeneration behavior of In/H-BEA catalyst were carried out in NO _x reduction by CH ₄ . In/H-BEA catalyst exhibited a poor resistance to sulfur dioxide after addition of 200 ppm SO ₂ and 10 vol.% H ₂ O into NO reduction with CH ₄ at 450 °C for 45 h. Sulfur poisoning of In/H-BEA was attributed to the inhibition of NO _x adsorption on Brønsted acid sites, suppression of reaction intermediates generation on the active sites, and the formation of surface sulfate species. The formation of surface sulfate reduced the availability of surface active sites, blocked the pore structure and decreased the surface area of catalyst. These changes in chemical and textural properties resulted in a severe loss in the activity of sulfated In/H-BEA catalyst for NO reduction with CH ₄ . H ₂ reduction is a promising technology for regeneration of In/H-BEA deactivated by SO ₂ for removing NO _x from lean-burn and diesel exhausts. Indium sulfate could be reduced by H ₂ to InO ⁺ with In ₂ O ₃ and In(OH) ₂ ⁺ as the intermediates. The optimal parameters of H ₂ reduction was regeneration temperature of 400 °C and regeneration time of 60 min which completely recovered the catalytic activity of In/H-BEA.

Original language	English
Pages (from-to)	120-126
Number of pages	7
Journal	Applied Surface Science
Volume	401
DOIs	https://doi.org/10.1016/j.apsusc.2016.12.201
State	Published - 15 Apr 2017

Keywords

Hydrogen reduction
In/H-BEA
NO reduction by CH
Regeneration
Sulfur poisoning

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10.1016/j.apsusc.2016.12.201

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@article{4c7e385366fc48689b19b266e160d521,

title = " Regeneration and sulfur poisoning behavior of In/H-BEA catalyst for NO x reduction by CH 4 ",

abstract = " Sulfur poisoning and regeneration behavior of In/H-BEA catalyst were carried out in NO x reduction by CH 4 . In/H-BEA catalyst exhibited a poor resistance to sulfur dioxide after addition of 200 ppm SO 2 and 10 vol.\% H 2 O into NO reduction with CH 4 at 450 °C for 45 h. Sulfur poisoning of In/H-BEA was attributed to the inhibition of NO x adsorption on Br{\o}nsted acid sites, suppression of reaction intermediates generation on the active sites, and the formation of surface sulfate species. The formation of surface sulfate reduced the availability of surface active sites, blocked the pore structure and decreased the surface area of catalyst. These changes in chemical and textural properties resulted in a severe loss in the activity of sulfated In/H-BEA catalyst for NO reduction with CH 4 . H 2 reduction is a promising technology for regeneration of In/H-BEA deactivated by SO 2 for removing NO x from lean-burn and diesel exhausts. Indium sulfate could be reduced by H 2 to InO + with In 2 O 3 and In(OH) 2 + as the intermediates. The optimal parameters of H 2 reduction was regeneration temperature of 400 °C and regeneration time of 60 min which completely recovered the catalytic activity of In/H-BEA.",

keywords = "Hydrogen reduction, In/H-BEA, NO reduction by CH, Regeneration, Sulfur poisoning",

author = "Hua Pan and Yanfei Jian and Yanke Yu and Chi He and Zhenxing Shen and Hongxia Liu",

note = "Publisher Copyright: {\textcopyright} 2016 Elsevier B.V.",

year = "2017",

month = apr,

day = "15",

doi = "10.1016/j.apsusc.2016.12.201",

language = "英语",

volume = "401",

pages = "120--126",

journal = "Applied Surface Science",

issn = "0169-4332",

publisher = "Elsevier B.V.",

}

Regeneration and sulfur poisoning behavior of In/H-BEA catalyst for NO _x reduction by CH ₄ . / Pan, Hua; Jian, Yanfei; Yu, Yanke et al.
In: Applied Surface Science, Vol. 401, 15.04.2017, p. 120-126.

Research output: Contribution to journal › Article › peer-review

TY - JOUR

T1 - Regeneration and sulfur poisoning behavior of In/H-BEA catalyst for NO x reduction by CH 4

AU - Pan, Hua

AU - Jian, Yanfei

AU - Yu, Yanke

AU - He, Chi

AU - Shen, Zhenxing

AU - Liu, Hongxia

PY - 2017/4/15

Y1 - 2017/4/15

N2 - Sulfur poisoning and regeneration behavior of In/H-BEA catalyst were carried out in NO x reduction by CH 4 . In/H-BEA catalyst exhibited a poor resistance to sulfur dioxide after addition of 200 ppm SO 2 and 10 vol.% H 2 O into NO reduction with CH 4 at 450 °C for 45 h. Sulfur poisoning of In/H-BEA was attributed to the inhibition of NO x adsorption on Brønsted acid sites, suppression of reaction intermediates generation on the active sites, and the formation of surface sulfate species. The formation of surface sulfate reduced the availability of surface active sites, blocked the pore structure and decreased the surface area of catalyst. These changes in chemical and textural properties resulted in a severe loss in the activity of sulfated In/H-BEA catalyst for NO reduction with CH 4 . H 2 reduction is a promising technology for regeneration of In/H-BEA deactivated by SO 2 for removing NO x from lean-burn and diesel exhausts. Indium sulfate could be reduced by H 2 to InO + with In 2 O 3 and In(OH) 2 + as the intermediates. The optimal parameters of H 2 reduction was regeneration temperature of 400 °C and regeneration time of 60 min which completely recovered the catalytic activity of In/H-BEA.

AB - Sulfur poisoning and regeneration behavior of In/H-BEA catalyst were carried out in NO x reduction by CH 4 . In/H-BEA catalyst exhibited a poor resistance to sulfur dioxide after addition of 200 ppm SO 2 and 10 vol.% H 2 O into NO reduction with CH 4 at 450 °C for 45 h. Sulfur poisoning of In/H-BEA was attributed to the inhibition of NO x adsorption on Brønsted acid sites, suppression of reaction intermediates generation on the active sites, and the formation of surface sulfate species. The formation of surface sulfate reduced the availability of surface active sites, blocked the pore structure and decreased the surface area of catalyst. These changes in chemical and textural properties resulted in a severe loss in the activity of sulfated In/H-BEA catalyst for NO reduction with CH 4 . H 2 reduction is a promising technology for regeneration of In/H-BEA deactivated by SO 2 for removing NO x from lean-burn and diesel exhausts. Indium sulfate could be reduced by H 2 to InO + with In 2 O 3 and In(OH) 2 + as the intermediates. The optimal parameters of H 2 reduction was regeneration temperature of 400 °C and regeneration time of 60 min which completely recovered the catalytic activity of In/H-BEA.

KW - Hydrogen reduction

KW - In/H-BEA

KW - NO reduction by CH

KW - Regeneration

KW - Sulfur poisoning

UR - https://www.scopus.com/pages/publications/85008950973

U2 - 10.1016/j.apsusc.2016.12.201

DO - 10.1016/j.apsusc.2016.12.201

M3 - 文章

AN - SCOPUS:85008950973

SN - 0169-4332

VL - 401

SP - 120

EP - 126

JO - Applied Surface Science

JF - Applied Surface Science

ER -

Regeneration and sulfur poisoning behavior of In/H-BEA catalyst for NO _x reduction by CH ₄

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