GE offers fabric filters as an alternative to ESPs
GE Power, Atlanta, GA, says that for particulate removal, its fabric filters (FF) offer a flexible alternative to electrostatic precipitators (ESPs), particularly when dust characteristics are challenging or variable such as in industrial power boilers or heaters.
Less than 5-mg/Nm3particulate emissions are possible with over 99.97% particulates removal efficiency, and high PM10 and PM 2.5 removal rates.
Filters can be supplied up to 12 metres tall for reduced footprint and operational costs and offering large fuel flexibility and the ability to handle varying boiler loads.
GE offers both high-ratio (pulse jet) and low-ratio (reverse air) options, depending on the application. Fabric filters may be used stand-alone or integrated with dry flue gas desulfurization (DFGD) solutions (NID™ or SDA), for dry scrubbing in the aluminum industry (Abart™), or as the principal and polishing filters in mercury control solutions (Mer-Cure™ or Filsorption™).
The fabric filters offer:
• Optipulse™ filtration technology with gravimetric flow and Optipow™ plunger valves for efficient bag cleaning;
• Stand-alone or integrated in multi-pollutant systems;
• Latest EFFIC controller and ProMo software for superior FF performance.
The combination of Optipow valves and an EFFIC controller on a new or existing FF provides better bag life compared to other available solutions, says GE Power. Product specifications include:
• Power capacity (MW) 10-1000
• Gas temperatures (°C) 25-260
• Gas flow rate (m3/s) 10-1500
• Dust loading at FF inlet (g/Nm3) 2-100; for NID up to 2000
• Emission at FF outlet (mg/Nm3) 5-50 wet @ operating O2 level (dry filterable particulate only), filterable PM only
• Availability Up to 99%
• Bag life guarantee 1 to 6 years depending on application and filter type.
GE Power, www.ge.com