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Yuan B, Qian Z, Zhangc Z, Fu L, Pan S, Hao R, Zhao Y. A critical review on the technique and mechanism of microwave-based denitrification in flue gas. J Environ Sci (China) 2022; 120:144-157. [PMID: 35623768 DOI: 10.1016/j.jes.2021.06.020] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/25/2020] [Revised: 05/31/2021] [Accepted: 06/20/2021] [Indexed: 06/15/2023]
Abstract
Microwave radiation has received extensive attention due to its significant thermal and non-thermal effects, and the development of MW-based denitrification in flue gas has become one of the most promising methods to avoid the defects of ammonia escape, high temperature and cost in traditional SCR. This review introduces the thermal and non-thermal effects of microwaves and divides MW-based denitrification methods into MW reduction and oxidation denitrification, systematically summarizes these denitrification methods, including MW discharge reduction, MW-induced catalytic reduction using active carbon, molecular sieves, metal oxides (transition metals, perovskites, etc.), MW-induced oxidation denitrification with and without additional oxidant, and discusses their removal pathway and mechanism. Finally, several research prospects and directions regarding the development of microwave-based denitrification methods are provided.
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Affiliation(s)
- Bo Yuan
- Hebei Key Lab of Power Plant Flue Gas Multi-Pollutants Control, Department of Environmental Science and Engineering, North China Electric Power University, Baoding 071003, China; MOE Key Laboratory of Resources and Environmental Systems Optimization, College of Environmental Science and Engineering, North China Electric Power University, Beijing 102206, China
| | - Zhen Qian
- Hebei Key Lab of Power Plant Flue Gas Multi-Pollutants Control, Department of Environmental Science and Engineering, North China Electric Power University, Baoding 071003, China
| | - Zili Zhangc
- Fujian Special Equipment Inspection and Research Institute, Fuzhou, Fujian 350008, China
| | - Le Fu
- Hebei Key Lab of Power Plant Flue Gas Multi-Pollutants Control, Department of Environmental Science and Engineering, North China Electric Power University, Baoding 071003, China
| | - Shihang Pan
- Hebei Key Lab of Power Plant Flue Gas Multi-Pollutants Control, Department of Environmental Science and Engineering, North China Electric Power University, Baoding 071003, China
| | - Runlong Hao
- Hebei Key Lab of Power Plant Flue Gas Multi-Pollutants Control, Department of Environmental Science and Engineering, North China Electric Power University, Baoding 071003, China; MOE Key Laboratory of Resources and Environmental Systems Optimization, College of Environmental Science and Engineering, North China Electric Power University, Beijing 102206, China.
| | - Yi Zhao
- Hebei Key Lab of Power Plant Flue Gas Multi-Pollutants Control, Department of Environmental Science and Engineering, North China Electric Power University, Baoding 071003, China; MOE Key Laboratory of Resources and Environmental Systems Optimization, College of Environmental Science and Engineering, North China Electric Power University, Beijing 102206, China
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2
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Xie P, Ji W, Li Y, Zhang C. NO direct decomposition: progress, challenges and opportunities. Catal Sci Technol 2021. [DOI: 10.1039/d0cy02041a] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The progress in catalyst R&D, challenges, and opportunities for NO direct decomposition are summarized.
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Affiliation(s)
- Pingping Xie
- Tianjin Key Laboratory of Applied Catalysis Science and Technology
- State Key Laboratory of Chemical Engineering (Tianjin University)
- School of Chemical Engineering and Technology
- Tianjin University
- Tianjin 300072
| | - Wenxue Ji
- Tianjin Key Laboratory of Applied Catalysis Science and Technology
- State Key Laboratory of Chemical Engineering (Tianjin University)
- School of Chemical Engineering and Technology
- Tianjin University
- Tianjin 300072
| | - Yongdan Li
- Tianjin Key Laboratory of Applied Catalysis Science and Technology
- State Key Laboratory of Chemical Engineering (Tianjin University)
- School of Chemical Engineering and Technology
- Tianjin University
- Tianjin 300072
| | - Cuijuan Zhang
- Tianjin Key Laboratory of Applied Catalysis Science and Technology
- State Key Laboratory of Chemical Engineering (Tianjin University)
- School of Chemical Engineering and Technology
- Tianjin University
- Tianjin 300072
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Wang Q, Xu W, Ma Z, Yu F, Chen Y, Liao H, Wang X, Zhou J. Highly Effective Direct Dehydrogenation of Propane to Propylene by Microwave Catalysis at Low Temperature over Co−Sn/NC Microwave Catalyst. ChemCatChem 2020. [DOI: 10.1002/cctc.202001640] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
Affiliation(s)
- Qige Wang
- Key Laboratory of Green Catalysis and Chemical Reaction Engineering of Hunan Province, School of Chemical Engineering Xiangtan University Xiangtan 411105 P.R. China
| | - Wentao Xu
- Key Laboratory of Green Catalysis and Chemical Reaction Engineering of Hunan Province, School of Chemical Engineering Xiangtan University Xiangtan 411105 P.R. China
- National and Local United Engineering Research Center for Chemical Process Simulation and Intensification Xiangtan University Xiangtan 411105 P.R. China
| | - Zhongchen Ma
- Key Laboratory of Green Catalysis and Chemical Reaction Engineering of Hunan Province, School of Chemical Engineering Xiangtan University Xiangtan 411105 P.R. China
| | - Fei Yu
- Key Laboratory of Green Catalysis and Chemical Reaction Engineering of Hunan Province, School of Chemical Engineering Xiangtan University Xiangtan 411105 P.R. China
| | - Yi Chen
- Key Laboratory of Green Catalysis and Chemical Reaction Engineering of Hunan Province, School of Chemical Engineering Xiangtan University Xiangtan 411105 P.R. China
| | - Huanyu Liao
- Key Laboratory of Green Catalysis and Chemical Reaction Engineering of Hunan Province, School of Chemical Engineering Xiangtan University Xiangtan 411105 P.R. China
| | - Xianyou Wang
- National Base for International Science and Technology Cooperation, School of Chemistry Xiangtan University Xiangtan 411105 P.R. China
| | - Jicheng Zhou
- Key Laboratory of Green Catalysis and Chemical Reaction Engineering of Hunan Province, School of Chemical Engineering Xiangtan University Xiangtan 411105 P.R. China
- National and Local United Engineering Research Center for Chemical Process Simulation and Intensification Xiangtan University Xiangtan 411105 P.R. China
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Liu J, Zhao Z, Xu C, Liu J. Structure, synthesis, and catalytic properties of nanosize cerium-zirconium-based solid solutions in environmental catalysis. CHINESE JOURNAL OF CATALYSIS 2019. [DOI: 10.1016/s1872-2067(19)63400-5] [Citation(s) in RCA: 72] [Impact Index Per Article: 14.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
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Xu W, Chen J, Qiu Y, Peng W, Shi N, Zhou J. Highly efficient microwave catalytic oxidation degradation of 4-nitrophenol over magnetically separable NiCo2O4-Bi2O2CO3 composite without adding oxidant. Sep Purif Technol 2019. [DOI: 10.1016/j.seppur.2018.12.061] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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Xu W, Wang Q, Peng K, Chen F, Han X, Wang X, Zhou J. Development of MgCo2O4–BaCO3 composites as microwave catalysts for the highly effective direct decomposition of NO under excess O2 at a low temperature. Catal Sci Technol 2019. [DOI: 10.1039/c9cy00797k] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The catalytic NO decomposition reaction is a hot research topic.
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Affiliation(s)
- Wentao Xu
- Key Laboratory of Green Catalysis and Chemical Reaction Engineering of Hunan Province
- School of Chemical Engineering
- Xiangtan University
- Xiangtan 411105
- P.R.China
| | - Qige Wang
- Key Laboratory of Green Catalysis and Chemical Reaction Engineering of Hunan Province
- School of Chemical Engineering
- Xiangtan University
- Xiangtan 411105
- P.R.China
| | - Kang Peng
- Key Laboratory of Green Catalysis and Chemical Reaction Engineering of Hunan Province
- School of Chemical Engineering
- Xiangtan University
- Xiangtan 411105
- P.R.China
| | - Fengtao Chen
- Key Laboratory of Green Catalysis and Chemical Reaction Engineering of Hunan Province
- School of Chemical Engineering
- Xiangtan University
- Xiangtan 411105
- P.R.China
| | - Xue Han
- Key Laboratory of Green Catalysis and Chemical Reaction Engineering of Hunan Province
- School of Chemical Engineering
- Xiangtan University
- Xiangtan 411105
- P.R.China
| | - Xianyou Wang
- National Base for International Science and Technology Cooperation
- School of Chemistry
- Xiangtan University
- Xiangtan
- 411105 China
| | - Jicheng Zhou
- Key Laboratory of Green Catalysis and Chemical Reaction Engineering of Hunan Province
- School of Chemical Engineering
- Xiangtan University
- Xiangtan 411105
- P.R.China
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Priecel P, Perez Mejia JE, Carà PD, Lopez-Sanchez JA. Microwaves in the Catalytic Valorisation of Biomass Derivatives. SUSTAINABLE CATALYSIS FOR BIOREFINERIES 2018. [DOI: 10.1039/9781788013567-00243] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
Abstract
The application of microwave irradiation in the transformation of biomass has been receiving particular interest in recent years due to the use of polar media in such processes and it is now well-known that for biomass conversion, and particularly for lignocellulose hydrolysis, microwave irradiation can dramatically increase reaction rates with no negative consequences on product selectivity. However, it is only in the last ten years that the utilisation of microwaves has been coupled with catalysis aiming towards valorising biomass components or their derivatives via a range of reactions where high selectivity is required in addition to enhanced conversions. The reduced reaction times and superior yields are particularly attractive as they might facilitate the transition towards flow reactors and intensified production. As a consequence, several reports now describe the catalytic transformation of biomass derivatives via hydrogenation, oxidation, dehydration, esterification and transesterification using microwaves. Clearly, this technology has a huge potential for biomass conversion towards chemicals and fuels and will be an important tool within the biorefinery toolkit. The aim of this chapter is to give the reader an overview of the exciting scientific work carried out to date where microwave reactors and catalysis are combined in the transformation of biomass and its derivatives to higher value molecules and products.
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Affiliation(s)
- Peter Priecel
- Stephenson Institute for Renewable Energy, Department of Chemistry, University of Liverpool Liverpool L69 7ZD UK
| | - Javier Eduardo Perez Mejia
- Stephenson Institute for Renewable Energy, Department of Chemistry, University of Liverpool Liverpool L69 7ZD UK
| | - Piera Demma Carà
- Stephenson Institute for Renewable Energy, Department of Chemistry, University of Liverpool Liverpool L69 7ZD UK
- MicroBioRefinery Facility, Department of Chemistry, University of Liverpool Liverpool L69 7ZD UK
| | - Jose A. Lopez-Sanchez
- Stephenson Institute for Renewable Energy, Department of Chemistry, University of Liverpool Liverpool L69 7ZD UK
- MicroBioRefinery Facility, Department of Chemistry, University of Liverpool Liverpool L69 7ZD UK
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Ohnishi T, Kawakami K, Nishioka M, Ogura M. Direct decomposition of NO on metal-loaded zeolites with coexistence of oxygen and water vapor under unsteady-state conditions by NO concentration and microwave rapid heating. Catal Today 2017. [DOI: 10.1016/j.cattod.2016.07.012] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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A new type of power energy for accelerating chemical reactions: the nature of a microwave-driving force for accelerating chemical reactions. Sci Rep 2016; 6:25149. [PMID: 27118640 PMCID: PMC4846869 DOI: 10.1038/srep25149] [Citation(s) in RCA: 36] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2016] [Accepted: 04/11/2016] [Indexed: 11/22/2022] Open
Abstract
The use of microwave (MW) irradiation to increase the rate of chemical reactions has attracted much attention recently in nearly all fields of chemistry due to substantial enhancements in reaction rates. However, the intrinsic nature of the effects of MW irradiation on chemical reactions remains unclear. Herein, the highly effective conversion of NO and decomposition of H2S via MW catalysis were investigated. The temperature was decreased by several hundred degrees centigrade. Moreover, the apparent activation energy (Ea’) decreased substantially under MW irradiation. Importantly, for the first time, a model of the interactions between microwave electromagnetic waves and molecules is proposed to elucidate the intrinsic reason for the reduction in the Ea’ under MW irradiation, and a formula for the quantitative estimation of the decrease in the Ea’ was determined. MW irradiation energy was partially transformed to reduce the Ea’, and MW irradiation is a new type of power energy for speeding up chemical reactions. The effect of MW irradiation on chemical reactions was determined. Our findings challenge both the classical view of MW irradiation as only a heating method and the controversial MW non-thermal effect and open a promising avenue for the development of novel MW catalytic reaction technology.
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Xu W, Zhou J, Su Z, Ou Y, You Z. Microwave catalytic effect: a new exact reason for microwave-driven heterogeneous gas-phase catalytic reactions. Catal Sci Technol 2016. [DOI: 10.1039/c5cy01802a] [Citation(s) in RCA: 42] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The microwave catalytic effect (lowering of activation energy) under microwave irradiation results in NO conversion exceeding that realized through conventional heating.
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Affiliation(s)
- Wentao Xu
- Key Laboratory of Green Catalysis and Chemical Reaction Engineering of Hunan Province
- School of Chemical Engineering
- Xiangtan University
- Xiangtan 411105
- PR China
| | - Jicheng Zhou
- Key Laboratory of Green Catalysis and Chemical Reaction Engineering of Hunan Province
- School of Chemical Engineering
- Xiangtan University
- Xiangtan 411105
- PR China
| | - Zhiming Su
- Key Laboratory of Green Catalysis and Chemical Reaction Engineering of Hunan Province
- School of Chemical Engineering
- Xiangtan University
- Xiangtan 411105
- PR China
| | - Yingpiao Ou
- Key Laboratory of Green Catalysis and Chemical Reaction Engineering of Hunan Province
- School of Chemical Engineering
- Xiangtan University
- Xiangtan 411105
- PR China
| | - Zhimin You
- Key Laboratory of Green Catalysis and Chemical Reaction Engineering of Hunan Province
- School of Chemical Engineering
- Xiangtan University
- Xiangtan 411105
- PR China
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11
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Xu W, Cai J, Zhou J, Ou Y, Long W, You Z, Luo Y. Highly Effective Direct Decomposition of Nitric Oxide by Microwave Catalysis over BaMeO3
(Me=Mn, Co, Fe) Mixed Oxides at Low Temperature under Excess Oxygen. ChemCatChem 2015. [DOI: 10.1002/cctc.201500966] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Wentao Xu
- Key Laboratory of Green Catalysis and Chemical Reaction Engineering of Hunan Province; School of Chemical Engineering; Xiangtan University; Xiangtan 411105 P.R. China
| | - Jinjun Cai
- Key Laboratory of Green Catalysis and Chemical Reaction Engineering of Hunan Province; School of Chemical Engineering; Xiangtan University; Xiangtan 411105 P.R. China
| | - Jicheng Zhou
- Key Laboratory of Green Catalysis and Chemical Reaction Engineering of Hunan Province; School of Chemical Engineering; Xiangtan University; Xiangtan 411105 P.R. China
| | - Yingpiao Ou
- Key Laboratory of Green Catalysis and Chemical Reaction Engineering of Hunan Province; School of Chemical Engineering; Xiangtan University; Xiangtan 411105 P.R. China
| | - Wei Long
- Key Laboratory of Green Catalysis and Chemical Reaction Engineering of Hunan Province; School of Chemical Engineering; Xiangtan University; Xiangtan 411105 P.R. China
| | - Zhimin You
- Key Laboratory of Green Catalysis and Chemical Reaction Engineering of Hunan Province; School of Chemical Engineering; Xiangtan University; Xiangtan 411105 P.R. China
| | - Yushang Luo
- Key Laboratory of Green Catalysis and Chemical Reaction Engineering of Hunan Province; School of Chemical Engineering; Xiangtan University; Xiangtan 411105 P.R. China
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Xu W, Zhou J, Ou Y, Luo Y, You Z. Microwave selective effect: a new approach towards oxygen inhibition removal for highly-effective NO decomposition by microwave catalysis over BaMn(x)Mg(1-x)O3 mixed oxides at low temperature under excess oxygen. Chem Commun (Camb) 2015; 51:4073-6. [PMID: 25660765 DOI: 10.1039/c4cc10288f] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A significant microwave selective effect on oxygen inhibition removal was found for NO decomposition through microwave catalysis over BaMn(x)Mg(1-x)O3 catalysts. Especially, the NO conversion and N2 selectivity were up to 99.8% and 99.9%, respectively for the BaMn(0.9)Mg(0.1)O3 catalyst even with the coexistence of 10% oxygen and low temperature of 250 °C.
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Affiliation(s)
- Wentao Xu
- Key Laboratory of Green Catalysis and Chemical Reaction Engineering of Hunan Province, School of Chemical Engineering, Xiangtan University, Xiangtan 411105, P. R. China.
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