Comparative study on the characteristics of condensable particulate matter emitted from three kinds of coal

Potential Strategy to Control the Organic Components of Condensable Particulate Matter: A Critical Review

“…Drawing on the principle of LLT-ESP/WESP to remove CPM, most n-alkanes will condense and adhere to FPM, which will eventually be removed by the dust collector. 60,94 As a typical ester in CPM organic components, 19 dibutyl phthalate (DBP) can be removed by catalytic oxidation, and most esters can be abated like this. 95 On the other hand, attention should be paid to coal with different sulfur contents since sulfur will promote the generation of PAHs in CPM organic components.…”

“…Particles formed before the flue gas outlet are FPM, and those formed after emission are CPM. For different emission sources, fuel types, sampling flue gas temperatures, and air pollution control devices (APCDs), the environmental parameters inside and outside the chimney, such as temperature, humidity and pressure, should be different . Given the fact that the dilution cooling method is more realistic and has been widely used in the latest construction of CPM emission inventories, CPM obtained by the dilution cooling method may be representative. , Even more, International Organization for Standardization (ISO) published ISO 25597 for employment of the dilution cooling method to measure CPM …”

Effect of Torrefaction on Aerosol Emissions at Combustion Temperatures Relevant for Domestic Burning and Power Generation

“…The combustion experiments were performed using a steady-flow reactor at an air-to-fuel ratio of 25 and at combustion temperatures of 400, 600, 800, and 1000 °C. This temperature range was chosen to encompass the temperatures encountered at different stages in domestic combustion, and the higher temperatures (800 and 1000 °C) overlap with those in previous studies that simulated power generation combustion conditions. ,, The fuel particles were supplied into a combustion reactor at a controlled mass flow rate in a fashion similar to the drop-tube furnace or one-dimensional furnace configurations commonly employed in pulverized coal and biomass combustion studies. − We utilized a custom-built particle-feeder system based on the design of Molinder and Wiinikka . The particle-feeder system consists of a vertically mounted glass hopper attached to a syringe pump pusher block.…”

“…This aerosol composition is similar to what is commonly referred to as condensable particulate matter (CPM) in studies of coal combustion emissions in power generation. 50,70,71 CPM is comprised of inorganic and organic species that are emitted in a gaseous state and condense and form particles as the emissions cool down. 28 We note that the inorganic fraction reported in Figure 4 is likely underestimated, as there are inorganic ions that were not targeted in our IC analysis but could be present in coal emissions (e.g., Ca 70 ).…”

Impacts of condensable particulate matter on atmospheric organic aerosols and fine particulate matter (PM2.5) in China

“…The emission sectors for these data included coal-fired power plants, waste incineration power plants, industrial coal boilers, heavy oil boilers, wood boilers, natural gas boilers, diesel boilers, iron and steel plants, and incinerators. Emissions of CPM depend on many factors, including source categories, fuel types, sampling flue gas temperature, and air pollution control devices (Feng et al, 2021). Furthermore, different measurement methods produce different CPM emission results (G. .…”