Filtration Competence - Engineering, Manufacturing, Installation

RATH Filtration GmbH

RATH Filtration GmbH is a wholly-owned subsidiary of RATH AG, a long-established and globally-active technology leader in the supply of specialist refractory materials, with headquarters in Vienna, Austria.

Solution Provider - Hot Gas Filtration

RATH Filtration GmbH is a solution provider in the field of industrial air pollution control (APC).  RATH offers tailored engineering solutions for hot gas filtration (HGF) applications based around its class-leading, portfolio of rigid, low density, FILTRATH® ceramic candle filter (CF) elements.

FILTRATH® & FILTRATH®CAT

Combining skills and manufacturing expertise with  high temperature insulation wools (HTIW) and vacuum forming techniques developed for the refractory industry, RATH has developed an extensive range of FILTRATH®CAT catalytic and FILTRATH® non-catalytic hot gas filter elements.  These form the core of APC systems used to control hot gas emissions from a broad range of industrial applications.

RATH extends Hot Gas Filtration

FILTRATH® & FILTRATH®CAT filter elements from RATH are now available in a broad range of standard flange designs, diameters and class-leading extended lengths up to 4,500 mm (single piece) or 6,000 mm (multi-piece).  Customised solutions (configurations) are also available on request.

Flexibility in Three Dimensions – Compliance, Protection, Recovery

FILTRATH® & FILTRATH®CAT hot gas filter elements from RATH are designed to:

• Ensure compliance with the most stringent exhaust emissions regulations (e.g. EU-IED, EU-WID).
• Enhance system effectiveness /durability by protecting downstream equipment (e.g. HX, turbines). 
• Enable recovery of valuable process waste materials entrained in the exhaust stream (e.g. catalysts)

FILTRATH® - DeDust : Control of Dust/Particulate Matter (PM)-

Built into an emission control system  and used in conjunction with a reverse pulse air cleaning system, FILTRATH® filter elements are highly-effective in controlling emissions of PM (< 2mg/Nm3) for hot gas temperatures applications in the range 250-1,000°C (i.e. well above the maximum operating range for fabric filter media and well below the achievable emissions levels for non-barrier filters).

FILTRATH® - DeSOx, DeDust: Control of Acid Gases  (SO2, HCl, HF) & PM

Used in conjunction with dry sorbent injection (DRI) (e.g. sodium bicarbonate, hydrated lime) FILTRATH® elements from RATH enable highly-effective (>98%) control of acid gas components (e.g. SO2, HCL, HF) as well as PM.  Alternatively, used with upstream injection of powdered activated carbon (PAC), FILTRATH® CF elements are also highly-effective in controlling emissions  of mercury.

FILTRATH®CAT - DeNOx, DeDust : Control Oxides of Nitrogen (NO, NO2) & PM

Performance can be further enhanced with the introduction of a SCR-coated filter element, FILTRATH®CAT.  When used in conjunction with upstream injection of an ammonia-based reductant (e.g. aqueous ammonia, urea) FILTRATH® CAT enables highly-effective (>95%) control of NOx emissions as well as PM for temperatures up to 420°C.    Operating above the DeNovo synthesis  temperature also means FILTRATH®CAT elements are highly-effective  in the control of emissions of dioxins and furans (PCDD/F)

FILTRATH®CAT - DeDust, DeSOx, DeNOx:  “3-in-1” Multi-pollutant Control

By combining the above RATH technology developments - sorbent/reductant injection with extended length FILTRATH®CAT elements – highly-effective “3-in-1” multi-pollutant (DeDust, DeSOx, DeNOx) can be achieved with a single system, eliminating process interfaces, reducing the overall footprint and saving space, hence offering the potential for significant OPEX and CAPEX savings.