A neutral and coordination regeneration method of Ca-poisoned V2O5-WO3/TiO2 SCR catalyst

Xiansheng Li; Changdong Liu; Xiang Li; Yue Peng; Junhua Li

doi:10.1016/j.catcom.2017.06.034

A neutral and coordination regeneration method of Ca-poisoned V₂O₅-WO₃/TiO₂ SCR catalyst

Xiansheng Li
, Changdong Liu
, Xiang Li
, Yue Peng^*
, Junhua Li

^*Corresponding author for this work

Tsinghua University
Zhejiang Zheneng Catalyst Technology Co., Ltd.

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

45 Scopus citations

Abstract

Polyether surfactant was employed for the regeneration of a poisoned by calcium V₂O₅-WO₃/TiO₂ catalyst. The OP-10 (alkylphenol polyoxyethylene (10) ether) surfactant exhibited better CaO removal performance than EL-60 (cremophor EL 60) and AEO9 (polyethyleneglycol (9) mono-dodecyl ether). The Ca^2 +-aromatic interactions developed in OP-10 increased the solubility of CaO in water and Ca^2 + could be removed by washing. The high Ca^2 + removal rate by OP-10 surfactant led to the reversible improvement of surface acid sites and active oxygen species. Compared with the traditional method of dilute sulfuric acid solution, the OP-10 presented higher Ca^2 + removal rate with lower V₂O₅ loss, which is expected to be a facile and environmental benign method for the regeneration of Ca^2 +-poisoned NH₃-SCR industrial catalysts.

Original language	English
Pages (from-to)	112-116
Number of pages	5
Journal	Catalysis Communications
Volume	100
DOIs	https://doi.org/10.1016/j.catcom.2017.06.034
State	Published - 2017
Externally published	Yes

Keywords

Ca poisoning
Coordination interaction
Mechanism
NH-SCR
Regeneration

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10.1016/j.catcom.2017.06.034

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title = "A neutral and coordination regeneration method of Ca-poisoned V2O5-WO3/TiO2 SCR catalyst",

abstract = "Polyether surfactant was employed for the regeneration of a poisoned by calcium V2O5-WO3/TiO2 catalyst. The OP-10 (alkylphenol polyoxyethylene (10) ether) surfactant exhibited better CaO removal performance than EL-60 (cremophor EL 60) and AEO9 (polyethyleneglycol (9) mono-dodecyl ether). The Ca2 +-aromatic interactions developed in OP-10 increased the solubility of CaO in water and Ca2 + could be removed by washing. The high Ca2 + removal rate by OP-10 surfactant led to the reversible improvement of surface acid sites and active oxygen species. Compared with the traditional method of dilute sulfuric acid solution, the OP-10 presented higher Ca2 + removal rate with lower V2O5 loss, which is expected to be a facile and environmental benign method for the regeneration of Ca2 +-poisoned NH3-SCR industrial catalysts.",

keywords = "Ca poisoning, Coordination interaction, Mechanism, NH-SCR, Regeneration",

author = "Xiansheng Li and Changdong Liu and Xiang Li and Yue Peng and Junhua Li",

note = "Publisher Copyright: {\textcopyright} 2017 Elsevier B.V.",

year = "2017",

doi = "10.1016/j.catcom.2017.06.034",

language = "英语",

volume = "100",

pages = "112--116",

journal = "Catalysis Communications",

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T1 - A neutral and coordination regeneration method of Ca-poisoned V2O5-WO3/TiO2 SCR catalyst

AU - Li, Xiansheng

AU - Liu, Changdong

AU - Li, Xiang

AU - Peng, Yue

AU - Li, Junhua

PY - 2017

Y1 - 2017

N2 - Polyether surfactant was employed for the regeneration of a poisoned by calcium V2O5-WO3/TiO2 catalyst. The OP-10 (alkylphenol polyoxyethylene (10) ether) surfactant exhibited better CaO removal performance than EL-60 (cremophor EL 60) and AEO9 (polyethyleneglycol (9) mono-dodecyl ether). The Ca2 +-aromatic interactions developed in OP-10 increased the solubility of CaO in water and Ca2 + could be removed by washing. The high Ca2 + removal rate by OP-10 surfactant led to the reversible improvement of surface acid sites and active oxygen species. Compared with the traditional method of dilute sulfuric acid solution, the OP-10 presented higher Ca2 + removal rate with lower V2O5 loss, which is expected to be a facile and environmental benign method for the regeneration of Ca2 +-poisoned NH3-SCR industrial catalysts.

AB - Polyether surfactant was employed for the regeneration of a poisoned by calcium V2O5-WO3/TiO2 catalyst. The OP-10 (alkylphenol polyoxyethylene (10) ether) surfactant exhibited better CaO removal performance than EL-60 (cremophor EL 60) and AEO9 (polyethyleneglycol (9) mono-dodecyl ether). The Ca2 +-aromatic interactions developed in OP-10 increased the solubility of CaO in water and Ca2 + could be removed by washing. The high Ca2 + removal rate by OP-10 surfactant led to the reversible improvement of surface acid sites and active oxygen species. Compared with the traditional method of dilute sulfuric acid solution, the OP-10 presented higher Ca2 + removal rate with lower V2O5 loss, which is expected to be a facile and environmental benign method for the regeneration of Ca2 +-poisoned NH3-SCR industrial catalysts.

KW - Ca poisoning

KW - Coordination interaction

KW - Mechanism

KW - NH-SCR

KW - Regeneration

UR - https://www.scopus.com/pages/publications/85021415322

U2 - 10.1016/j.catcom.2017.06.034

DO - 10.1016/j.catcom.2017.06.034

M3 - 文章

AN - SCOPUS:85021415322

SN - 1566-7367

VL - 100

SP - 112

EP - 116

JO - Catalysis Communications

JF - Catalysis Communications

ER -

A neutral and coordination regeneration method of Ca-poisoned V₂O₅-WO₃/TiO₂ SCR catalyst

Abstract

Keywords

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