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TGT-RI-scrubber Reactor-bag-filter baghouse fgd desulfurization NOx-control Chlorines Acid-gas heavy-metals particulates-removal emission flue-gas-cleaning Waste-to-energy Lime-Injection- Alumina-reage-FIVES


scrubber Reactor-bag-filter baghouse fgd desulfurization NOx-control Chlorines Acid-gas heavy-metals particulates-removal emission flue-gas-cleaning Waste-to-energy Lime-Injection- Alumina-reagent TGTRI-FIVES

Fives Solios TGT® Filter

The state-of-the-art low pressure pulse jet cleaning filter significantly increases in filtration velocity. The low pressure cleaning ensures a “soft landing” of the bag onto the cage, thus reducing significantly particulate emissions. 

A new type of flow valve

The principle used in the Fives' Integral Action Piston (IAP) Valve is to vent the pressure rapidly behind the "seal" (piston) and use the compressed air pressure in the manifold to move and open quickly the piston. The use of a piston instead of rubber membrane significantly reduces maintenance requirements. The pressure of the compressed air in the manifold has been reduced from the normal requirement of 5 to 7 bars for conventional pulse jet filters to 1,5 to 2,5 bars for the Fives Solios TGT. The standard module consists of 788 round filter sleeves arranged in 48 rows of 17.

  • Compact design 
  • Use of 6 meter long filter bags
  • Reactor integrated inside the filter module
  • Optimal distribution of the reagent (mainly alumina ) and the gases
  • Higher concentration of HF and fluoride dust in the gas in hot exhaust gases.
  • Operation with fluorinated alumina which is very close to the saturation level
  • Simplication of the alumina handling system within the center
  • Perfectly adapted for GTCs with high requirements (gas flowrates up to 2,500,000 Nm3)

The Reactor

The chemisorption of HF is achieved in a Venturi Reactor where gas comes into contact with alumina.

A number of distribution valves which are necessary to distribute gas and alumina are located in a low velocity area inside the filter.

Fives' TGT-RI is mainly used in the Aluminium gas cleaning processes, the Gas Treatment Center (GTC) and the Fume Treatment Center (FTC).

More about Fives' offer in the Aluminium market



  • The smallest footprint 
  • Lower emissions allowing for a future expansion of the smelter without increasing the mass fluoride emission (in terms of kg/hr.)
  • High efficient technology
  • Optimised CAPEX with longer bag life
  • OPEX reduction: lower electrical consumption and maintenance cost
  • Suitable in all climate conditions

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