2020年4月20日 · Different available post-combustion methods of NO x removal, including selective catalytic reduction (using different types of reducing reagents, including ammonia, hydrogen, hydrocarbons, and carbon monoxide), selective noncatalytic reduction, wet scrubbing, adsorption, electron beam, nonthermal plasma, and electrochemical reduction of NO x, ar...

2022年10月13日 · From the perspective of changes in the valence of nitrogen (N), purification technologies against NOx in flue gas are classified into three approaches: oxidation, reduction, and adsorption/absorption. The removal processes, mechanisms, and influencing factors of each method are systematically reviewed.

Catalytic removal of nitrogen oxide (NO) is a mature but still challenging task in environmental catalysis, owing to the fact that it is causing serious damages to the environment, climate and to human health [1]; nitrogen oxides are one of the most significant components of the exhausts from the high-temperature combustion process of fossile fu...

2013年3月1日 · Three ways of removing NO x by photocatalytic reactions, photo-SCR, photo-oxidation and photo-decomposition are summarized. The mechanism of NO formation and the traditional methods of NO x removal are summarized and discussed. The real-scale applications of NO x removal by photo processes are presented. A photo-deNO x process with other ...

2022年10月13日 · From the perspective of changes in the valence of nitrogen (N), purification technologies against NOx in flue gas are classified into three approaches: oxidation, reduction, and...

2022年12月3日 · NOx gas release is one of the significant outcomes of burning fossil fuels with significantly negative environmental impacts. In this article, the experts at IFS will discuss various methods that can be used to eliminate NOx gases and preserve ecological balance.

2022年6月27日 · Results indicate that anaerobic condition and higher discharge power is beneficial to direct removal of NOx, and the NOx removal efficiency can be up to 98.5% under the optimal operating conditions. It is also found that adding NH3 is favorable for the reduction of NOx to N2 at lower discharge power.

2025年3月19日 · With the aim to develop wet denitration process for marine application, it is still challenging to simultaneously achieve high-efficiency NO x removal from flue gas and low nitrate concentration in scrubbed solution. Herein a novel two-step method was proposed to solve this issue: phosphate buffer solution (PBS) with organic additive was used to absorb NO x efficiently from flue gas, and in ...

2023年1月13日 · In this review, we summarize and highlight the recent advances in g-C3N4-based photocatalysts for photocatalytic NOx removal. Firstly, we attempt to elucidate the mechanism of the photocatalytic NOx removal process …

2019年8月15日 · Selective catalytic reduction with NH 3 (NH 3 –SCR) is the most efficient technology to reduce the emission of nitrogen oxides (NO x) from coal-fired industries, diesel engines, etc.