期刊
RENEWABLE & SUSTAINABLE ENERGY REVIEWS
卷 155, 期 -, 页码 -出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.rser.2021.111916
关键词
NOx; N2O; Denitrification; Selective catalytic reduction; Catalytic decomposition; Selective non-catalytic reduction; Electron beam; Electrochemical reduction
资金
- Laboratory for Process Engineering, Environment, Biotechnology and Energy - LEPABE - national funds through the FCT/MCTES (PIDDAC)
- Portuguese National Agency of Innovation (ANI-Agencia Nacional de Inovacao) through the P2020| COMPETE - Projetos em Copromocao - programme [POCI-01-0247-FEDER-039926]
- Centro Portugal Regional Operational Programme (Centro 2020), under the PORTUGAL 2020 Partnership Agreement, through the European Regional Development Fund (ERDF) [UIDB/00481/2020, UIDP/00481/2020, CENTRO-01-0145-FEDER-022083]
- Portuguese Foundation for Science and Technology (FCT-Fundacao para a Ciencia e Tecnologia) [2020.10008. BD, PD/BDE/142837/2018]
- [2020.10008]
- [UIDB/00511/2020]
- Fundação para a Ciência e a Tecnologia [2020.10008.BD, PD/BDE/142837/2018, UIDB/00511/2020, UIDB/00481/2020] Funding Source: FCT
This article provides an overview of various technologies for NOx and N2O emissions mitigation, including selective catalytic reduction, catalytic decomposition, and selective non-catalytic reduction. These technologies have limitations, which has spurred interest in the development of new strategies. Electron beam irradiation and electrochemical reduction are identified as promising technologies with potential for innovation in this field.
Mitigation of NOx and N2O emissions is a major concern as these substances can cause extensive damages to the atmosphere, soil, water, and humans. Selective catalytic reduction is currently the most effective and widespread technology to remove nitrogen oxides from flue streams. Other methods are also used on a case-by-case basis, most noticeably i) Catalytic decomposition of NOx and N2O, in which nitrogen oxides are decomposed in the absence of other reactants, and ii) selective non-catalytic reduction, which is generally applied when the use of catalytic beds is limited or impossible. Currently, all these technologies suffer limitations, a situation that has led to an interest in the conceptualization and development of new strategies. Electron beam irradiation and electrochemical reduction are some of the most promising prospective technologies, which have the potential to contribute to a rethinking of the state of the art in NOx and N2O mitigation. The current article provides an overview of all these technologies, considering process specifics and the advantages and disadvantages of their implementation.
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