NoTox ApS

Transformervej 4
DK-2730 Herlev
Denmark

Phone: +45 7023 8989

Fax: +45 7023 7979

Web: www.notox.com

Email: sales@notox.com

NoTox Background

NoTox has been involved in filtration of diesel exhaust since 1985. During its history the company has been a frontrunner in filter technology, and has introduced many innovative products and technologies. The company filed its first patents protecting the novel filter structure and the underlaying production methods in 1988.

Since then NoTox has introduced many new types of filter substrates, all of them based on protected technology to continue to offer state of the art filter solutions.

A whole new generation of filter products aimed at OEM use has been launched recently. These filter products meet or exceed the market demands for a high cell density, low pressure drop filter media.

Developed in Denmark, more than a decade ago, the Notox XD-90 Silicon Carbide Diesel Particulate Filter, has been proven as an excellent solution for demanding retrofit applications, where a very durable filter substrate is required. Where other filter substrates consequently fail, NoTox has succeeded with the XD SiC filters.

Our filters are manufactured in 4 different versions, each targeted for different application fields and in particular different regeneration strategies. With 4 versions of the NoTox filter available, an optimized filter solution is available for almost any application. A catalytic coating can be added to any of these versions. The XD-90 has however proved to be very suitable due to the larger pore size of the filter material.

The XD Filters

The very durable XD filters are available either in 90 CPSI or in 150 CPSI. We recommend these filters for filter systems with a passive regeneration strategy, where the filter may encounter very high soot loads before regeneration takes place.

During regeneration at elevated soot loads, the filter structure experience high stress levels due to the energy release from the soot combustion. Our XD filters can withstand regeneration at soot loads above 15 g/l without being damaged.

The MD Filters

The MD filters available in 150 CPSI or 200 CPSI are targeted towards systems with active regeneration or OEM use, but can also be applied for passive systems with consistent regeneration. For this type of applications, where regeneration takes place under controlled conditions, a filter with less durability is required. This enables a filter design with more attention on reducing the pressure drop as much as possible. The max. allowable soot load are however still as high as 10 g/l.

Sizes Available

We manufacture the filter substrates in almost any standard size available on the market. We are also able to deliver oval/race track shapes or any other cross section specified by the customers.

If your specific application require a filter with a non-standard cross section or just a standard cross section in a non standard length, we are pleased to offer our service to you.

Contact us for more information about our products and services or read about it at www.notox.com.

The Advantage of Silicon Carbide

Silicon Carbide has several advantageous material properties as DPF material:

  • High thermal and chemical stability at temperatures much above the max. obtainable temperature in a WFF for a diesel engine
  • High material strength
  • High thermal conductivity

However the most important key to successful use of SiC is closely linked to a thorough understanding of the thermal stresses induced in SiC.

NoTox has gained extensive experience on how to tailor material properties to a WFF design, to secure the durability and at the same time deliver a satisfactorily pressure drop.