Efficient catalytic oxidation of HCl to recycle Cl2 over the CuO-CeO2 composite oxide supported on Y type zeolite

Zhaoyang Fei; Haoyue Liu; Yong Dai; Weijie Ji; Xian Chen; Jihai Tang; Mifen Cui; Xu Qiao

doi:10.1016/j.cej.2014.07.033

Efficient catalytic oxidation of HCl to recycle Cl₂ over the CuO-CeO₂ composite oxide supported on Y type zeolite

Zhaoyang Fei, Haoyue Liu, Yong Dai, Weijie Ji, Xian Chen, Jihai Tang, Mifen Cui, Xu Qiao

College of Chemical Engineering

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

30 Scopus citations

Abstract

The CuO-CeO₂ composite oxides supported on Y-zeolite were prepared by means of wet-impregnation method. The derived catalysts exhibited excellent activities and high stabilities for gas-phase HCl catalytic oxidation to Cl₂. 90% conversion of HCl can be accomplished at a reaction temperature as low as 390°C. Comparing with the results reported in literature, the CuO(12)-CeO₂(13)/Y catalyst developed in the current study showed exceptionally high space time yield for Cl₂ (62.7mmolg_cat^-¹h^-¹ at 410°C). A correlation between the characterization results and the activities of CuO-CeO₂/Y suggested that higher content of well dispersed CuO species and intensive CuO-CeO₂ association (the formed Cu_xCe₁_-_xO₂_-_y and surface oxygen spillover) are critical to determine high activity.

Original language	English
Pages (from-to)	273-280
Number of pages	8
Journal	Chemical Engineering Journal
Volume	257
DOIs	https://doi.org/10.1016/j.cej.2014.07.033
State	Published - 1 Dec 2014

Keywords

Chlorination
Chlorine recycling
CuO-CeO composite catalyst
HCl oxidation
Synergetic effect

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10.1016/j.cej.2014.07.033

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title = "Efficient catalytic oxidation of HCl to recycle Cl2 over the CuO-CeO2 composite oxide supported on Y type zeolite",

abstract = "The CuO-CeO2 composite oxides supported on Y-zeolite were prepared by means of wet-impregnation method. The derived catalysts exhibited excellent activities and high stabilities for gas-phase HCl catalytic oxidation to Cl2. 90% conversion of HCl can be accomplished at a reaction temperature as low as 390°C. Comparing with the results reported in literature, the CuO(12)-CeO2(13)/Y catalyst developed in the current study showed exceptionally high space time yield for Cl2 (62.7mmolgcat-1h-1 at 410°C). A correlation between the characterization results and the activities of CuO-CeO2/Y suggested that higher content of well dispersed CuO species and intensive CuO-CeO2 association (the formed CuxCe1-xO2-y and surface oxygen spillover) are critical to determine high activity.",

keywords = "Chlorination, Chlorine recycling, CuO-CeO composite catalyst, HCl oxidation, Synergetic effect",

author = "Zhaoyang Fei and Haoyue Liu and Yong Dai and Weijie Ji and Xian Chen and Jihai Tang and Mifen Cui and Xu Qiao",

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year = "2014",

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doi = "10.1016/j.cej.2014.07.033",

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T1 - Efficient catalytic oxidation of HCl to recycle Cl2 over the CuO-CeO2 composite oxide supported on Y type zeolite

AU - Fei, Zhaoyang

AU - Liu, Haoyue

AU - Dai, Yong

AU - Ji, Weijie

AU - Chen, Xian

AU - Tang, Jihai

AU - Cui, Mifen

AU - Qiao, Xu

PY - 2014/12/1

Y1 - 2014/12/1

N2 - The CuO-CeO2 composite oxides supported on Y-zeolite were prepared by means of wet-impregnation method. The derived catalysts exhibited excellent activities and high stabilities for gas-phase HCl catalytic oxidation to Cl2. 90% conversion of HCl can be accomplished at a reaction temperature as low as 390°C. Comparing with the results reported in literature, the CuO(12)-CeO2(13)/Y catalyst developed in the current study showed exceptionally high space time yield for Cl2 (62.7mmolgcat-1h-1 at 410°C). A correlation between the characterization results and the activities of CuO-CeO2/Y suggested that higher content of well dispersed CuO species and intensive CuO-CeO2 association (the formed CuxCe1-xO2-y and surface oxygen spillover) are critical to determine high activity.

AB - The CuO-CeO2 composite oxides supported on Y-zeolite were prepared by means of wet-impregnation method. The derived catalysts exhibited excellent activities and high stabilities for gas-phase HCl catalytic oxidation to Cl2. 90% conversion of HCl can be accomplished at a reaction temperature as low as 390°C. Comparing with the results reported in literature, the CuO(12)-CeO2(13)/Y catalyst developed in the current study showed exceptionally high space time yield for Cl2 (62.7mmolgcat-1h-1 at 410°C). A correlation between the characterization results and the activities of CuO-CeO2/Y suggested that higher content of well dispersed CuO species and intensive CuO-CeO2 association (the formed CuxCe1-xO2-y and surface oxygen spillover) are critical to determine high activity.

KW - Chlorination

KW - Chlorine recycling

KW - CuO-CeO composite catalyst

KW - HCl oxidation

KW - Synergetic effect

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U2 - 10.1016/j.cej.2014.07.033

DO - 10.1016/j.cej.2014.07.033

M3 - 文章

AN - SCOPUS:84918820048

SN - 1385-8947

VL - 257

SP - 273

EP - 280

JO - Chemical Engineering Journal

JF - Chemical Engineering Journal

ER -

Efficient catalytic oxidation of HCl to recycle Cl₂ over the CuO-CeO₂ composite oxide supported on Y type zeolite

Abstract

Keywords

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