Flue gas desulfurization (FGD) systems are technologies used to remove sulfur dioxide (SO2) , sulfur-containing acids, and other acid gases from the exhaust flue gases. These systems play an important role in air pollution control. Here, we will discuss the role of FGD systems in sulfur emissions reduction as well as the history of how the technology came about in the air pollution control industry. We will also discuss the benefits of circulating dry scrubber systems and what the future may hold for FGD systems and regulations.
History of FGD Systems
Technological advancements and tightening environmental regulations are ensuring that the air is getting cleaner. FGD systems are a result of a need to control SO2 emissions and the resulting regulations restricting SO2 emissions.
SO2 emissions caused significant air pollution issues in industrial cities. Blankets of smog used to settle in densely populated areas, impacting the health of the citizens and the environment. In response to pressure from the public, SO2 controls began to take effect, and FGD systems were developed. Since the 1970s, these technologies have continued to develop, and their use has grown across the globe.
FGD systems help companies throughout the world meet air quality standards. The regulatory bodies and standards vary from country to country. However, the need for companies to limit their SO2 emissions remains constant. Power plants, industrial boilers, waste incinerators, and other industries benefit from the use of FGD systems, which remove SO2 from flue gases.
CDS Systems
A circulating dry scrubber (CDS) is a type of FGD system. LDX Solutions offers one of the most highly efficient and easy-to-operate CDS systems, the Dustex® CDS. CDS systems require lower maintenance when compared to other technologies and have a comparatively smaller footprint.
A CDS system can achieve up to 99% SO2 removal efficiency. The system is a multi-pollutant removal device. The technology actually removes other pollutants including SO3, HCl, and HF. It can also remove dioxins, furans, Hg, and can even achieve up to 60% NOx removal efficiency.
CDS systems can work in high moisture applications and tend to have lower capital costs when compared to other systems. This is due to the modular fabrication, simplistic design, and absence of slurry systems. CDS systems have a high recycle rate, which allows for low reagent consumption, a lower power consumption (when compared to wet scrubbers), and don’t have a wastewater stream.
LDX Solutions offers CDS systems in a variety of sizes and across a range of applications. A CDS system generally consists of the following:
- Reaction tower
- Reagent storage silo
- Waste silo
- Мешочный фильтр
- Air slide conveyors
- Flue gas recirculation
LDX Solutions has installed custom CDS systems for a wide selection of applications. Successful installs have included CDS systems for twin carbon calcining kilns, coke calcining kilns, cement kilns, lead acid battery recycling, biomass boilers, power plants, and more. Systems can and often are upgraded to meet specific needs. For example, a cement kiln may also include a cyclone because of the cement dust and its impact on the lime and other agents.
Future Outlook
FGD systems are primarily used to reduce SO2 emissions. LDX Solutions partners with industry leaders to identify and install the best system to meet their needs.
FGD systems have advanced dramatically since the first major FGD unit at a utility was installed in the early 1930s. For nearly 100 years, FGD systems have become more efficient. At the same time, these systems have been met with more demand as regulations have heightened. Evolving regulations mean these systems must evolve to meet changing demands.
The air has gotten cleaner since the industrial e,ra when blankets of fog settled in cities. This has only been possible thanks to technological advancements in air pollution control systems like FGD systems. LDX Solutions provides some of the most efficient air pollution control solutions. We have continued to develop our technology and personalized approach to provide our partners with the best solutions to meet heightened compliance standards and operational goals.
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LDX Solutions is your partner for CDS systems. We work with our partners through every step of the process from audit to installation to aftermarket service and support. CDS systems can be crucial to sustainable operations for years and years to come. These systems have a small footprint and big impact, ensuring that regulations are met while requiring less maintenance and ongoing support than most other technologies.
Are you ready for a cleaner future? Our knowledgeable team can provide you with a comprehensive plan tailored to your company’s specific needs. Contact LDX-Solutions today.
