Røggassene

Røggassene are the gases emitted from combustion processes, such as heating boilers, engines, and industrial furnaces. They consist of the gases and particles carried away with the exhaust, and their exact composition depends on the fuel and the efficiency of combustion. Typically, the major constituents are water vapour and carbon dioxide, with carbon monoxide when combustion is incomplete, and trace amounts of nitrogen oxides (NOx), sulfur oxides (SOx), and particulate matter. In solid fuels like coal or biomass, ash and heavy metals may also be present in the gas stream or in the form of fly ash.

The emission of røggassene has environmental and health implications. NOx and SOx contribute to air pollution and acid deposition, while CO and certain hydrocarbons pose health risks at elevated concentrations. CO2 is a greenhouse gas linked to climate change. Because of these impacts, røggassene are regulated and monitored in many jurisdictions, with objectives to limit emissions and protect air quality.

To reduce impacts, a range of technologies is used. Flue gas cleaning can include scrubbers to remove sulfur compounds, filters or electrostatic precipitators to capture particulates, and catalytic or non-catalytic methods to reduce NOx. Continuous emission monitoring systems track gas concentrations in real time. The composition and controls for røggassene depend on fuel quality, combustion technology, and operating conditions, which influence both environmental performance and regulatory compliance.

Understanding røggassene is essential in contexts such as energy production, industry, and transportation, where emissions management, public health, and environmental regulation intersect.