{"title":"利用活性氮化合物实现氮循环经济。","authors":"Dr. Tatsuo Kimura","doi":"10.1002/tcr.202400094","DOIUrl":null,"url":null,"abstract":"<p>Nitrogen oxides (NO<sub><i>x</i></sub>) should be purified according to environmental regulations, being restricted increasingly year by year. A wide variety of denitration technologies, such as selective catalytic reduction (SCR) of NO<sub><i>x</i></sub> to nitrogen (N<sub>2</sub>) and NO<sub><i>x</i></sub> storage reduction (NSR) to N<sub>2</sub> by injecting reducing agents like ammonia (NH<sub>3</sub>), has so far been developed practically. Sophisticated catalytic approaches are perhaps mandatory for the sustainability in energy including complete purification of NO<sub><i>x</i></sub>. As one of the solutions to overcome problems for environment and resource simultaneously, this concept article focuses on the utilization of reactive nitrogen (N<sub><i>r</i></sub>) compounds, mainly NO<sub><i>x</i></sub>, for encouraging an opening to consider nitrogen circular economy. For the recycling of NO<sub><i>x</i></sub> via NH<sub>3</sub>, a challenging but rational catalytic technology can be proposed by an alternate switching the inlet gas between NO<sub><i>x</i></sub> containing oxidative gas and H<sub>2</sub> containing reductive one without an operation to change the reaction temperature. Considering the reactivity of NO<sub><i>x</i></sub> higher than that of N<sub>2</sub>, this kind of NO<sub><i>x</i></sub> to NH<sub>3</sub> (NTA) process is promising for synthesizing NH<sub>3</sub>, being valuable not only as fertilizer but also as fuel in near future.</p>","PeriodicalId":10046,"journal":{"name":"Chemical record","volume":"24 8","pages":""},"PeriodicalIF":7.0000,"publicationDate":"2024-08-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Utilization of Reactive Nitrogen Compounds for Nitrogen Circular Economy\",\"authors\":\"Dr. Tatsuo Kimura\",\"doi\":\"10.1002/tcr.202400094\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<p>Nitrogen oxides (NO<sub><i>x</i></sub>) should be purified according to environmental regulations, being restricted increasingly year by year. A wide variety of denitration technologies, such as selective catalytic reduction (SCR) of NO<sub><i>x</i></sub> to nitrogen (N<sub>2</sub>) and NO<sub><i>x</i></sub> storage reduction (NSR) to N<sub>2</sub> by injecting reducing agents like ammonia (NH<sub>3</sub>), has so far been developed practically. Sophisticated catalytic approaches are perhaps mandatory for the sustainability in energy including complete purification of NO<sub><i>x</i></sub>. As one of the solutions to overcome problems for environment and resource simultaneously, this concept article focuses on the utilization of reactive nitrogen (N<sub><i>r</i></sub>) compounds, mainly NO<sub><i>x</i></sub>, for encouraging an opening to consider nitrogen circular economy. For the recycling of NO<sub><i>x</i></sub> via NH<sub>3</sub>, a challenging but rational catalytic technology can be proposed by an alternate switching the inlet gas between NO<sub><i>x</i></sub> containing oxidative gas and H<sub>2</sub> containing reductive one without an operation to change the reaction temperature. Considering the reactivity of NO<sub><i>x</i></sub> higher than that of N<sub>2</sub>, this kind of NO<sub><i>x</i></sub> to NH<sub>3</sub> (NTA) process is promising for synthesizing NH<sub>3</sub>, being valuable not only as fertilizer but also as fuel in near future.</p>\",\"PeriodicalId\":10046,\"journal\":{\"name\":\"Chemical record\",\"volume\":\"24 8\",\"pages\":\"\"},\"PeriodicalIF\":7.0000,\"publicationDate\":\"2024-08-02\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Chemical record\",\"FirstCategoryId\":\"92\",\"ListUrlMain\":\"https://onlinelibrary.wiley.com/doi/10.1002/tcr.202400094\",\"RegionNum\":2,\"RegionCategory\":\"化学\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q1\",\"JCRName\":\"CHEMISTRY, MULTIDISCIPLINARY\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Chemical record","FirstCategoryId":"92","ListUrlMain":"https://onlinelibrary.wiley.com/doi/10.1002/tcr.202400094","RegionNum":2,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"CHEMISTRY, MULTIDISCIPLINARY","Score":null,"Total":0}
Utilization of Reactive Nitrogen Compounds for Nitrogen Circular Economy
Nitrogen oxides (NOx) should be purified according to environmental regulations, being restricted increasingly year by year. A wide variety of denitration technologies, such as selective catalytic reduction (SCR) of NOx to nitrogen (N2) and NOx storage reduction (NSR) to N2 by injecting reducing agents like ammonia (NH3), has so far been developed practically. Sophisticated catalytic approaches are perhaps mandatory for the sustainability in energy including complete purification of NOx. As one of the solutions to overcome problems for environment and resource simultaneously, this concept article focuses on the utilization of reactive nitrogen (Nr) compounds, mainly NOx, for encouraging an opening to consider nitrogen circular economy. For the recycling of NOx via NH3, a challenging but rational catalytic technology can be proposed by an alternate switching the inlet gas between NOx containing oxidative gas and H2 containing reductive one without an operation to change the reaction temperature. Considering the reactivity of NOx higher than that of N2, this kind of NOx to NH3 (NTA) process is promising for synthesizing NH3, being valuable not only as fertilizer but also as fuel in near future.
期刊介绍:
The Chemical Record (TCR) is a "highlights" journal publishing timely and critical overviews of new developments at the cutting edge of chemistry of interest to a wide audience of chemists (2013 journal impact factor: 5.577). The scope of published reviews includes all areas related to physical chemistry, analytical chemistry, inorganic chemistry, organic chemistry, polymer chemistry, materials chemistry, bioorganic chemistry, biochemistry, biotechnology and medicinal chemistry as well as interdisciplinary fields.
TCR provides carefully selected highlight papers by leading researchers that introduce the author''s own experimental and theoretical results in a framework designed to establish perspectives with earlier and contemporary work and provide a critical review of the present state of the subject. The articles are intended to present concise evaluations of current trends in chemistry research to help chemists gain useful insights into fields outside their specialization and provide experts with summaries of recent key developments.