Applications

In lime and cement production, combustion processes generate highly contaminated flue gases with high dust concentrations, chemically aggressive constituents, and temperatures above 450 °C, resulting in extremely demanding filtration requirements.

Conventional fabric filters are generally limited to peak temperatures of around 250 °C. The required cooling of flue gases significantly increases energy consumption, gas volume, and overall plant complexity

Against this background, we are consistently transferring our proven sintered metal filter technology (SMF®) to industrial high-temperature processes. The resulting advantages are clearly measurable from both a technical and economic perspective:

• Elimination of energy-intensive gas cooling prior to filtration
• No increase in gas volume due to cooling, enabling more compact plant designs
• Reduced need for peripheral equipment (cooling towers, quench systems, additional fans, complex piping)
• Simplified plant design with lower engineering effort and fewer interfaces
• Lower capital expenditure for auxiliary equipment and steel structures
• Improved utilization of waste heat due to higher gas temperatures after filtration
• Increased potential for power generation, e.g. via ORC systems
• Reliable protection of turbines, SCR catalysts, scrubbers, and CO₂ capture systems
• Extended service life even under abrasive conditions
• Higher plant availability and reduced operational risks

Real-world projects in the lime, cement, and steel industries have already provided practical experience under actual process conditions. These applications demonstrate an excellent separation efficiency of 99.995%. Compared to ceramic filters, SMF filter elements are significantly more robust, impact-resistant, wear-resistant, and easier to install.