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Kang K, Yao X, Cao J, Li Z, Rong J, Luo W, Zhao W, Chen Y. Enhancing the K resistance of CeTiO x catalyst in NH 3-SCR reaction by CuO modification. JOURNAL OF HAZARDOUS MATERIALS 2021; 402:123551. [PMID: 32763768 DOI: 10.1016/j.jhazmat.2020.123551] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/22/2020] [Revised: 07/15/2020] [Accepted: 07/21/2020] [Indexed: 06/11/2023]
Abstract
It is generally accepted that CeTiOx catalyst owns outstanding catalytic activity for ammonia-selective catalytic reduction (NH3-SCR), but the tolerance to alkali metals is still dissatisfactory. Thus, it is of great importance to further elevate the catalytic activity and resistance to alkali metals of CeTiOx catalyst. In our work, a series of CeTiOx, CuO/CeTiOx, K-CeTiOx and K-CuO/CeTiOx catalysts were prepared to comprehensively analyze the influence of CuO modification on the physicochemical features, catalytic activity and anti-K ability of CeTiOx catalyst. The results manifest that CuO modification effectively enhances low-temperature catalytic activity and anti-K poisoning ability of CeTiOx catalyst by protecting the reduction ability and the surface acidity as well as weakening the adsorption strength of NOx.
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Affiliation(s)
- Keke Kang
- Research Center for Atmospheric Environment, Key Laboratory of Reservoir Aquatic Environment of CAS, Chongqing Institute of Green and Intelligent Technology, Chinese Academy of Sciences, Chongqing 400714, PR China; College of Resources and Environment, Chongqing School, University of Chinese Academy of Sciences (UCAS Chongqing), Chongqing 400714, PR China; School of Resources and Environment, University of Chinese Academy of Sciences, Beijing 100049, PR China
| | - Xiaojiang Yao
- Research Center for Atmospheric Environment, Key Laboratory of Reservoir Aquatic Environment of CAS, Chongqing Institute of Green and Intelligent Technology, Chinese Academy of Sciences, Chongqing 400714, PR China; College of Resources and Environment, Chongqing School, University of Chinese Academy of Sciences (UCAS Chongqing), Chongqing 400714, PR China; School of Resources and Environment, University of Chinese Academy of Sciences, Beijing 100049, PR China.
| | - Jun Cao
- Research Center for Atmospheric Environment, Key Laboratory of Reservoir Aquatic Environment of CAS, Chongqing Institute of Green and Intelligent Technology, Chinese Academy of Sciences, Chongqing 400714, PR China; College of Resources and Environment, Chongqing School, University of Chinese Academy of Sciences (UCAS Chongqing), Chongqing 400714, PR China
| | - Zhe Li
- Research Center for Atmospheric Environment, Key Laboratory of Reservoir Aquatic Environment of CAS, Chongqing Institute of Green and Intelligent Technology, Chinese Academy of Sciences, Chongqing 400714, PR China; College of Resources and Environment, Chongqing School, University of Chinese Academy of Sciences (UCAS Chongqing), Chongqing 400714, PR China; School of Resources and Environment, University of Chinese Academy of Sciences, Beijing 100049, PR China
| | - Jing Rong
- Research Center for Atmospheric Environment, Key Laboratory of Reservoir Aquatic Environment of CAS, Chongqing Institute of Green and Intelligent Technology, Chinese Academy of Sciences, Chongqing 400714, PR China; College of Resources and Environment, Chongqing School, University of Chinese Academy of Sciences (UCAS Chongqing), Chongqing 400714, PR China
| | - Wen Luo
- Research Center for Atmospheric Environment, Key Laboratory of Reservoir Aquatic Environment of CAS, Chongqing Institute of Green and Intelligent Technology, Chinese Academy of Sciences, Chongqing 400714, PR China; College of Resources and Environment, Chongqing School, University of Chinese Academy of Sciences (UCAS Chongqing), Chongqing 400714, PR China; School of Resources and Environment, University of Chinese Academy of Sciences, Beijing 100049, PR China
| | - Wanxia Zhao
- Research Center for Atmospheric Environment, Key Laboratory of Reservoir Aquatic Environment of CAS, Chongqing Institute of Green and Intelligent Technology, Chinese Academy of Sciences, Chongqing 400714, PR China; College of Resources and Environment, Chongqing School, University of Chinese Academy of Sciences (UCAS Chongqing), Chongqing 400714, PR China
| | - Yang Chen
- Research Center for Atmospheric Environment, Key Laboratory of Reservoir Aquatic Environment of CAS, Chongqing Institute of Green and Intelligent Technology, Chinese Academy of Sciences, Chongqing 400714, PR China; College of Resources and Environment, Chongqing School, University of Chinese Academy of Sciences (UCAS Chongqing), Chongqing 400714, PR China; School of Resources and Environment, University of Chinese Academy of Sciences, Beijing 100049, PR China
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2
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Kang Y, Li Z, Cui J, Geng C, Zhang C, Li P, Yang C. Addition of Ce in Cu/Three‐Dimensional Graphene Derived from Watermelon for Low Temperature NH
3
‐SCR. ChemistrySelect 2020. [DOI: 10.1002/slct.201904519] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Affiliation(s)
- Yan Kang
- College of Chemistry and Chemical EngineeringQiqihar University Qiqihar 161006, Heilongjiang China
| | - Zhifang Li
- College of Materials Science and EngineeringQiqihar University Qiqihar 161006, Heilongjiang China
- Heilongjiang Provincial Key Laboratory of Polymeric Composite Material Qiqihar 161006 Heilongjiang China
| | - Jinxing Cui
- College of Materials Science and EngineeringQiqihar University Qiqihar 161006, Heilongjiang China
- Heilongjiang Provincial Key Laboratory of Polymeric Composite Material Qiqihar 161006 Heilongjiang China
| | - Cui Geng
- College of Chemistry and Chemical EngineeringQiqihar University Qiqihar 161006, Heilongjiang China
| | - Chao Zhang
- College of Chemistry and Chemical EngineeringQiqihar University Qiqihar 161006, Heilongjiang China
| | - Peng Li
- College of Chemistry and Chemical EngineeringQiqihar University Qiqihar 161006, Heilongjiang China
| | - Changlong Yang
- College of Chemistry and Chemical EngineeringQiqihar University Qiqihar 161006, Heilongjiang China
- College of Materials Science and EngineeringQiqihar University Qiqihar 161006, Heilongjiang China
- Heilongjiang Provincial Key Laboratory of Polymeric Composite Material Qiqihar 161006 Heilongjiang China
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4
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Sun J, Chen H, Wu H, Zhou C, Yang H. Enhanced low‐temperature Selective Catalytic Reduction (SCR) of NO
x
by CuO‐CeO
2
‐MnO
x
/γ‐Al
2
O
3
mixed oxide catalysts. CAN J CHEM ENG 2019. [DOI: 10.1002/cjce.23483] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Jiaxing Sun
- School of Energy and Mechanical EngineeringNanjing Normal University Nanjing 210042 China
| | - Heng Chen
- Engineering Laboratory of Energy System Process Conversion & Emission Reduction Technology of Jiangsu Province 210042 Nanjing China
| | - Hao Wu
- School of Energy and Mechanical EngineeringNanjing Normal University Nanjing 210042 China
| | - Changsong Zhou
- Jiangsu Provincial Key Laboratory of Materials Cycling & Pollution ControlSchool of Energy and Mechanical EngineeringNanjing Normal University 210042 Nanjing China
| | - Hongmin Yang
- School of Energy and Mechanical EngineeringNanjing Normal University Nanjing 210042 China
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