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    TopFrax™

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    Catalyst-coated ceramic filter

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    Removes multiple pollutants simultaneously

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    Operates at high temperatures

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    Reduces costs significantly

    TopFrax™ catalytic ceramic filter

    TopFrax™ is a patent-pending catalyst-coated ceramic filter designed to treat off-gasses in high-dust environments found in a wide range of industries and activities.

    How TopFrax™ works

    The TopFrax™ filter is based on a ceramic fiber impregnated with a particular catalytic solution. The chemical composition is made to suit the specific needs of the different customers.  A combination of dust, NOX, NH3, dioxins, CO and different VOCs can be removed in one single step. The catalyst is loaded uniformly along a well-defined fraction of the wall providing the lowest cost of compliance and ensuring undesirable reactions (e.g. SO2 oxidation). 
    In addition to their multi-compound capabilities, TopFrax™ ceramic catalytic filters are effective at temperatures as high as 400°C. Combined, these advantages can help you reduce capital expenditures by up to 40% compared to competing solutions.

    Broad spectrum of regulated pollutants

    Built on decades of leadership in filtration and catalysis, TopFrax™ can transform the economics of meeting regulatory emissions standards, removing dust and multiple gaseous compounds in one single step.

    Dust

    TopFrax™ effectively blocks particulates and dust particles at the filter surface the same way conventional filters do, ensuring full compliance with stringent emission standards.

    TopFrax™ candles are made from either refractory ceramics or fibers with low bio-persistence. Both products trap dust emissions (below PM 2.5) down to 2 mg/Nm3.

    NOx

    TopFrax™ use selective catalytic reduction (SCR) to remove NOx from off-gas, by utilizing ammonia to convert to harmless nitrogen and water.

    VOCs

    The catalyst sites on TopFrax™ filters also oxidize CO and volatile organic compounds into harmless CO2 and H2O.  
    The TopFrax™ oxidation version ensures optimal combustion of VOCs with no additional emission of CO. 

    Dioxins

    TopFrax™ also ensures compliance with limits on dioxins and furans, by treating more than 99% of these by converting them into harmless compounds and reducing their concentrations to below 0.1 ng/Nm3, TEQ.

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    Reduce technology costs by up to 40%

    As the only catalytic ceramic filter of its kind, TopFrax™ delivers entirely unique cost-saving benefits – saving up to 40% compared to separate DeNOx and oxidation technologies.

    Other benefits include:

    • Simultaneous dust and multiple gaseous compounds removal in a single step 

    • No need for costly, space-demanding tail-end gas removal equipment

    • Catalytic ceramic filter accommodates temperatures as high as 400°C (752°F) 

    • No contact between catalyst and potentially harmful particles 

    • Exceptional resistance to catalyst poisoning 

    • Effective down to 180°C (356°F) operation

    • Easy to install and handle

    Request Safety Data Sheet (SDS)

    Safety Data Sheets (SDS) also previous known as Material Safety Data Sheets (MSDS) are documents providing health and safety information on the handling of chemical products. These documents are only available for Haldor Topsoe's catalysts on request and can be requested in the form below.

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