Abatement technologies for high concentrations of NO_x and SO₂ removal from exhaust gases: A review

abstract

Nitrogen oxides (NO_x) and sulfur dioxide (SO₂) are the main air pollutants. Both of them are mostly formed during the process of fossil fuels combustion, while some processes generate very high concentrations of NO_x and SO₂. In this review the authors describe and summarize the currently used methods and the new techniques that are under investigation. They also give a detailed description of the regulations and sources of SO₂ and NO_x emissions, as well as their impact on human health and the environment. The authors focus primarily on the environmental protection technologies used in power plants, vehicles, ships, and the chemical industry.

KEYWORDS:

• Nitrogen oxides
• sulfur dioxide
• off gases
• control technologies
• review

Funding

This work was partly financed by Institute of Nuclear Chemistry and Technology, in the frame of Ministerial statutory funding, task 4.4, and co-financed project Nr W141/7. PR UE/2014 “Zastosowanie wiązki elektronów w przemyśle i ochronie środowiska,” akronim: EuCARD-2, in a framework 7. PR EuCARD-2, WP4 Applications of Accelerators.