NOx and NH3 Catalytic Filter Bags

Based on more than 15 years of experience in catalytic filtration, Gore has developed a completely new approach to the reduction of NOx and ammonia.

• Low capital investment for new equipment
• Minor changes to process and operation
• No additional footprint
• No differential pressure increase
• Easy to install. Easy to maintain.

• Simplify flue gas treatment line
• Save energy costs
• Reduce capital investment cost

Meeting the latest NOx and NH3 compliance requirements can be difficult and costly.

• SNCR: often not able to achieve low enough levels of NOx and NH3 at the same time.
• SCR tower: comes with significant investment cost, especially for existing facilities; limitations in terms of floorspace, overhead clearance, ID fan capacity and other unexpected impacts. Retrofitting an SCR to an existing facility typically requires 30-50 % higher investment than an SCR purchased with the initial plant construction

Gore has developed a dual-function filter bag that simultaneously provides best-in-class particulate filtration and high-efficiency NOx reduction. The Gore technology combines an ePTFE membrane for particulate removal with a PTFE-based catalytic felt for simultaneous reduction of NOx and NH3. Because the GORE Membrane effectively traps dirt and dust, it also protects the catalyst and extends its performance-life.

GORE DeNOx Catalytic Filter Bags have been proven at full scale references. The conversion is simple.

• Typically, no new equipment is required, with exception of the installation of new filter bags
• Minor operating procedures changes
• Gore applications engineers to assist in the modification, installation and startup of the process