The selective catalytic reduction of NO over Ce0.3TiOx-supported metal oxide catalysts

被引：17

作者：

Duan, Zhichen ^{[1
]}

Liu, Jian ^{[1
]}

Shi, Juan ^{[1
]}

Zhao, Zhen ^{[1
]}

Wei, Yuechang ^{[1
]}

Zhang, Xiao ^{[1
]}

Jiang, Guiyuan ^{[1
]}

Duan, Aijun ^{[1
]}

机构：

[1] China Univ Petr, Beijing Key Lab Oil & Gas Pollut Control, State Key Lab Heavy Oil Proc, Beijing 102249, Peoples R China

来源：

JOURNAL OF ENVIRONMENTAL SCIENCES | 2018年 / 65卷

基金：

中国国家自然科学基金;

关键词：

NOx; NH3-SCR; Catalyst; Selectivity; Ce-Ti oxide; LOW-TEMPERATURE SCR; NH3; FE; SO2; AMMONIA; MN; CO;

D O I：

10.1016/j.jes.2017.01.016

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

A Ce0.3TiOx oxide carrier was synthesized via a sol-gel process, and Ce0.3TiOx supported metal (M = Cd, Mn, Fe, W, Mo) oxide catalysts were prepared by the method of incipient-wetness impregnation. The catalysts were characterized by means of X-ray diffraction (XRD), Brunauer-Emmett-Teller (BET) analysis, scanning electron microscopy (SEM), transmission electron microscopy (TEM), Fourier transform infrared (FT-IR) spectroscopy, UV-Vis diffuse reflectance spectroscopy (UV-Vis DRS), and Temperature-programmed reduction with H-2 (H-2-TPR). The catalytic activities for de-NOx were evaluated by the NH3-SCR reaction. Among all the catalysts tested, the 2 wt.% Cd/Ce0.3TiOx catalyst exhibited the best NH3-SCR performance, with a wide temperature window of 250-450 degrees C for NO conversion above 90%. Moreover, the catalyst showed N-2 selectivity greater than 99% from 200 to 450 degrees C. (C) 2017 The Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences. Published by Elsevier B.V.

引用

页码：1 / 7

页数：7

共 50 条

[21] MnOx/CeO2-TiO2 mixed oxide catalysts for the selective catalytic reduction of NO with NH3 at low temperature
Lee, Sang Moon
Park, Kwang Hee
Hong, Sung Chang
CHEMICAL ENGINEERING JOURNAL, 2012, 195 : 323 - 331
[22] Catalytic ozonation of benzotriazole over alumina supported transition metal oxide catalysts in water
Roshani, Babak
McMaster, Iain
Rezaei, Ebrahim
Soltan, Jafar
SEPARATION AND PURIFICATION TECHNOLOGY, 2014, 135 : 158 - 164
[23] Three-dimensionally ordered macroporous Ce-W-Nb oxide catalysts for selective catalytic reduction of NOx with NH3
Jiang, Ye
Liu, Tianyu
Gao, Wenqian
Ge, Hongwei
Yang, Zhengda
Lin, Riyi
Wang, Xinwei
CHEMICAL ENGINEERING JOURNAL, 2022, 433
[24] Characteristics of Manganese Supported on Hydrous Titanium Oxide Catalysts for the Selective Catalytic Reduction of NOx with Ammonia
Song, Inhak
Youn, Seunghee
Kim, Do Heui
TOPICS IN CATALYSIS, 2016, 59 (10-12) : 1008 - 1012
[25] Catalytic decomposition of methane over rare earth metal (Ce and La) oxides supported iron catalysts
Pudukudy, Manoj
Yaakob, Zahira
Jia, Qingming
Takriff, Mohd Sobri
APPLIED SURFACE SCIENCE, 2019, 467 : 236 - 248
[26] Reveal of free radicals in manganese-based catalysts and their roles during selective catalytic reduction of nitrogen oxide
Hou, Luman
Wen, Yuling
Wu, Jianzhong
Yue, Yang
Zhang, Jia
Zhang, Jincang
Qian, Guangren
JOURNAL OF COLLOID AND INTERFACE SCIENCE, 2022, 628 : 193 - 204
[27] Monolayer transition metal supported on titania catalysts for the selective catalytic reduction of NO by NH3
Bourikas, K
Fountzoula, C
Kordulis, C
APPLIED CATALYSIS B-ENVIRONMENTAL, 2004, 52 (02) : 145 - 153
[28] Effects of Chlorine Addition on Nitrogen Oxide Reduction and Mercury Oxidation over Selective Catalytic Reduction Catalysts
Ji, Mingxuan
Li, Honghu
Hu, Kang
Hu, Jiangjun
ACS OMEGA, 2022, 7 (14): : 12098 - 12110
[29] The performance and mechanism of transition metal oxide (Fe, Cu, Mn, Ce) on selective catalytic reduction of NO over ZSM-5
Wang, Xuetao
Liu, Chongfei
Hu, Haipeng
Xing, Lili
Li, Haojie
Liu, Mengjie
Miao, Linfeng
ENVIRONMENTAL TECHNOLOGY, 2025,
[30] Selective Catalytic Reduction of NO with NH3 over Ce-W-Ti Oxide Catalysts Prepared by Solvent Combustion Method
Zhu, Xinbo
Wang, Yaolin
Huang, Yu
Cai, Yuxiang
APPLIED SCIENCES-BASEL, 2018, 8 (12):

← 1 2 3 4 5 →