emissionsrening
Emissionsrening refers to processes and technologies designed to remove pollutants from exhaust streams to reduce environmental and health impacts of air emissions. It covers both stationary sources (power plants, industrial facilities) and mobile sources (vehicles). The aim is to lower emissions of sulfur oxides, nitrogen oxides, particulate matter, volatile organic compounds, and greenhouse gases, depending on regulatory requirements and technology options.
Key technologies include gas cleaning and scrubbing to remove acid gases (wet and dry scrubbers for SO2
In vehicles, emissionsrening is achieved with catalytic converters and diesel particulate filters; in industry, scrubbers, precipitators
Regulatory frameworks such as the EU Industrial Emissions Directive, the US Clean Air Act, and international
Ongoing trends include integration with energy efficiency, retrofit of existing plants, and combination with carbon capture