Ceramic Filter Tube

Various technologies have been developed to prevent emissions of pollutants to atmosphere for over 100 years and industry has welcomed these as a valuable tool to minimise the impact of pollutants on our environment. These technologies all have their pros and cons and must be employed where the limitations of their component parts dictate.

Ceramic fiber filters have been used for many years to remove particulates, even very fine sub-micron particulates, from process gas streams. The filters have proven to be very efficient and very durable withstanding high temperatures and corrosive conditions.

Catalytic Ceramic Filter using vanadium pentoxide based catalysts which have been used for many years as part of SCR systems to reduce NOx and Dioxin emissions to atmosphere and the performance is well understood.

Ceramic filters are such efficient filter products that even micro fine particles generated in carbon black production and from diesel fired power plants are captured by the super efficient HEPA rated filter medium. Carbon black is notoriously difficult to filter but ceramic filters not only easily capture these fine and sticky particles but also deliver a stable pressure drop and a long life filter. Diesel fuelled engines too can generate fine and sticky soot particles but again they are easily captured at the surface of the filter giving reliability and a steady performance. There are also options to control and reduce emissions of SOx and NOx by adding appropriate chemicals and sorbents. Recovery of heat energy is now the focus of many energy intensive industries such as glass and cement and fibrous ceramic filters offer a real opportunity to maximize the benefits of heat recovery. The filters reduce the particle loading of the gas to such low levels that heat exchange or boiler tubes are not fouled by fugitive dust and therefore high quality heat energy can be recovered.