From cement production to wood products, the building materials sector is a foundation in our communities. While the industry contributes to everything from housing to industrial complexes, it also contributes significantly to air pollution. As demand fuels growth, the building materials industry must adopt cleaner technologies.
Dustex, Geoenergy, and Western Pneumatics are now part of ANDRITZ, a leader in air pollution control technology. Keep reading to learn more about addressing emissions in the building materials sector.
Addressing Emissions in Cement Production
Cement makes modern infrastructure possible. Unfortunately, cement manufacturing is also a significant contributor to environmental pollution. Cement production presents a complex challenge when it comes to air pollution control (APC). That is why it is important to partner with a knowledgeable and experienced team like ANDRITZ to ensure your systems and equipment meet the unique needs of your facility. Some of the top APC equipment for cement production includes the following solutions.
Baghouses
Cement production is a leading source of particulate matter emissions. Baghouses, also known as fabric filter dust collectors, are designed for high removal rates of particles greater than 1 micron. These systems can achieve removal rates greater than 99.9% and, when compared to other systems, are more efficient with regard to electricity consumption.
Baghouse systems work by removing particulates from the gas stream. In the system, process gas passes through a permeable barrier, and the barrier removes the particulates from the gas stream. Filters can be cleaned online or offline, allowing for continuous operation and an improved filter life.
Circulating Dry Scrubbers
Circulating dry scrubbers (CDS) are another effective technology for reducing emissions in cement production. These systems foster ideal reaction conditions in a circulatory fluidized bed reactor by bringing together fine water droplets, hydrated lime, and flue gas.
CDS systems have high removal efficiencies for acid gases. This includes hydrogen chloride (HCl), hydrogen fluoride (HF), sulfur dioxide (SO2), and sulfur trioxide (SO3). Dustex® CDS can achieve >99% SO2 and HCl removal efficiency.
Inyección de absorbente seco
Inyección de sorbente seco (DSI) systems are another option for acid gas control in cement production. Dustex® DSI systems are designed to meet the rigorous requirements of a typical plant environment.
DSI systems can help to mitigate SO2, SO3, HCl, and HF. These systems tend to offer removal efficiencies of up to 60% for SO2 and more than 99% for HCl.
Inyección de Carbón Activado
Cement production can take a toll on the environment. In addition to particulate matter and acid gases, cement production can also yield heavy metals and dioxins. Activated carbon injection (ACI) systems can help combat heavy metals and dioxins.
The Dustex® ACI systems can reduce emissions by more than 99%. The ACI system injects powdered activated carbon (PAC) from a storage silo into flue gas ductwork, where it adsorbs contaminants, including heavy metals and hazardous air pollutants like dioxins and furans. The spent PAC, along with the contaminants, is then collected with fly ash in the plant’s particulate collection device.
ANDRITZ is your partner for mitigating emissions in building materials production. Our experienced team provides a comprehensive suite of services, including audits, custom designs, engineering, fabrication, installation, and even aftermarket support.
Addressing Emissions in Engineered Wood Manufacturing
The manufacturing processes for engineered wood products, including drying, pressing, and adhesive use, can generate significant emissions. As demand for engineered wood products grows, so does the demand for reducing emissions. ANDRITZ has the experience you need to address emissions in your engineered wood manufacturing facility.
Engineered wood facilities can produce significant air pollution, predominantly in the form of hazardous air pollutants (HAPs), volatile organic compounds (VOCs), and particulate matter. Most facilities utilize more than one form of air pollution control technology.
Some of the mitigation and control measures that facilities can employ are similar to those in cement production. This includes baghouses, ACI systems, and DSI systems.
Adicional Opciones de control de emisiones include regenerative thermal oxidizers (RTOs), regenerative catalytic oxidizers (RCOs), and wet scrubbers. RTOs and RCOs are effective technologies for the destruction of HAPs, VOCs, and even odor. Wet scrubbers remove a wide variety of contaminants from process gas streams, including acid gases.
Emission regulations are only going to get stricter. Now is the time for a comprehensive evaluation of your air pollution control systems. Now is the time to contact ANDRITZ.
Contact ANDRITZ
At ANDRITZ, we are at the forefront of emissions mitigation in the building materials sector. Our technological and regulatory expertise delivers the best value to the building materials industry environmental regulations evolve, staying compliant requires both the right technology and a forward-looking strategy.
Now is the time to evaluate your facility’s compliance strategy. Contact ANDRITZ today to learn more.
