Active Particulate Filter - Technical Progress that Widens the Market for Emission Controls
2004-10-25

Sweden based STT Emtec takes another step forward in emission control for heavy and medium-duty diesel engines. The company has developed an active system for diesel particulate filters, which solves the problem with soot particulates by burning them. The system is based on catalytic combustion of diesel fuel injected into the exhaust gases.
 - We build our system using proven mechanical components controlled by an advanced control module designed in-house. Necessary heat is generated over the catalyst in the reaction between oxygen and fuel. One of the main features of the system is flameless regeneration, when soot oxidizes in the filter, says project leader Claes Åkerlund of STT Emtec.

This new active system has been tested in cooperation with the bus operator Connex. A field trial in Sweden has shown good results.

- Being one of the leading bus operators in Europe, we are interested to be in the forefront of the development of new technology, especially when it comes to environmental tasks. We have been following the developments closely in the field trial, and the results exceeded our expectations, says Martin Atterhall, Technical Director at Connex Sweden AB.

For several years STT Emtec has been successful with its DNOx emission control system that reduces emissions of nitrogen oxides (NOx). The company has delivered systems to customers in Europe, Asia, as well as North America, where the North America is the single most important market.

Existing diesel particulate filters have relatively low soot oxidation rates, which has prevented them from being used in many applications. STT Emtec’s new system extends the potential field of use.

The potential market for STT Emtec’s active regeneration system is huge. The market window is now open to more engine and vehicle types than ever before, as it is possible to retrofit vehicles already equipped with passive particulate filters.

STT Emtec in brief
STT Emtec is a fast growing engineering company with more than 20 years experience in the automotive industry. The focus in recent years is on emission control systems and engine performance optimization. Customers are found in Europe, Asia, Australia, South and North America. STT Emtec has long history of in-house product developments by its R&D department. Developments are being conducted in modern engine test laboratories. The Sweden based company employs about 50 people and is represented in England and USA. Turnover in 2003 was close to 90 MSEK, an increase by over 40% since 2002. www.sttemtec.com

Connex Sverige AB – in brief
Connex Sverige AB provides contract-based public transportation to public transport authorities, municipalities and counties throughout the whole of Sweden. The company is specialized in solving passengers´ need of transport through buses, trains, subways, trams and boats. Every day about 1.6 Millions of passengers travel with Connex in Sweden. Security, reliability and service are priorities in the work carried out by 8 200 employees. The Connex Group has provided public transportation throughout the world since 1911 and operates today in around twenty countries. www.connex.se

For more information please contact:
Glenn Berglund Business Area Manager Emission Systems STT Emtec Phone: +46 60 64 10 41 or +46 70 580 68 80
Back
Press Releases
2011-12-06
More emission systems to Paper Mill.
The Paper Mill M-real in Husum has equipped five more terminal tractors with emission systems from STT Emtec.
2011-01-28
New Managing Director
New Managing Director of STT Emtec as from Januari 28, 2011
2011-01-13
Oslo Havnevesen (Oslo Port Control) goes green
STT Emtec contributes to a better environment at Oslo Port
2009-12-17
STT Emtec supplies exhaust after-treatment systems for campers in Germany
STT Emtec AB has signed a supply agreement with the German company TWINTEC Technologies GmbH, for the supply of key components for particulate filters with active regeneration
2008-12-19
New CEO at STT Emtec
New CEO at STT Emtec from January 1, 2009
2008-12-09
STT Emtec and AS Nymo launch marine NOx reduction by EGR to the Norwegian market
Marine DNOx will allow vessel owners to reduce NOx emissions considerably, resulting in substantial environmental benefits.
2008-02-14
STT Emtec launch new technology to Russia and Brazil
STT Emtec announces orders to Russia and Brazil amounting to 4 MSEK on all new developed power kits to the Mitsubishi Common Rail engine lineup
2008-01-10
First order of Lean NOx exhaust reduction systems to Japan
STT Emtec announces the first order of Lean NOx exhaust reduction systems to Maruma Technica in Japan.
2008-01-09
Excecutive Vice President
Micael Blomquist has been appointed  Excecutive Vice President
2005-10-27
New CEO at STT Emtec
Anders Björk new CEO at STT Emtec from January 1, 2006.
2005-04-26
Breakthrough in the USA after authority`s verification
California Air Reosurces Board, CARB, has verified a system from the filter manufacturer Johnson Matthey, called EGRT. The system is a combination between STT Emtec's emission control system, DNOx and Johnson Matthey's CRT filter.
2005-04-15
The County of Västernorrland`s Environment Award to STT Emtec
The County Council of Västernorrland gives every second year a company or person an award for environmental work. The Environment Award for 2005 was given to STT Emtec AB for its work involving hi-tech knowledge, the advance of technology in the interest of the environment. Read the jury`s grounds.
2004-11-01
Accreditation Expected to Give STT Emtec New Engine Test Business
The engine test laboratory of Sweden based company STT Emtec has been accredited according to the internationally accepted standard for engine laboratories ISO/IEC 17025. This was confirmed by the Governmental authority Swedac, -Board for accreditation and technical control. The accreditation assures that the engine test laboratory, a core off the company's Research and Development, meets this high standard.
2004-10-25
Active Particulate Filter - Technical Progress that Widens the Market for Emission Controls
Sweden based STT Emtec takes another step forward in emission control for heavy and medium-duty diesel engines. The company has developed an active system for diesel particulate filters, which solves the problem with soot particulates by burning them. The system is based on catalytic combustion of diesel fuel injected into the exhaust gases.
2003-10-10
Success in USA for STT Emtec´s DNOx® system
The Swedish company STT Emtec have been commissioned to deliver their own developed exhaust gas cleaning system for approximately 1000 heavy diesel transit busses in the state of Texas.
2002-12-02
GIK Turboteknik New Owner of STT Emtec´s Turbo Repair Operations
STT Emtec, former STT Svensk Turbo Teknik AB, has more than twenty years of experience from turbo repairs, which has led to a great confidence among customers, in Sweden as well as abroad.
2002-09-11
STT Emtec Continues Expansion
New Office in USA and Key Recruitment
2001-07-04
Swedish Technology Used To Clean London Bus Exhaust Gases

Swedish technology will now be used to clean the exhaust gases from London's huge fleet of buses. STT Emtec, of Sundsvall, in collaboration with the Engelhard Corporation, an American filter manufacturer, has been commissioned to install exhaustcleaning systems in a number of London's 6,000 buses.
2001-01-01
California Test Opens Gigantic Market For STT Emission Technology
The technology of STT of Sundsvall to reduce nitrogen oxides in diesel exhausts, is now undergoing its first big test - in California. California is renowned for having the toughest regulations in the world today for exhaust emissions, and is preparing even more stringent legislation. In April this year, STT signed a co-operation agreement with the US-based Engelhard Corporation, which specialises in advanced filter technology. That company is one of the world`s biggest suppliers of catalysts and systems to reduce pollution from combustion engines. This co-operation opens up a huge market for STT.
2000-09-22
STT Holding, a candidate for being quoted on the stock exchange, solves the environmental problems of diesel
The environmental problems of diesel are high on the agenda these days. Political measures include raising taxes on diesel to reduce its use, thereby reducing environmental problems. The STT Holding AB Group in Sundsvall has made a technological breakthrough that makes it possible to significantly reduce harmful emissions from heavy diesel vehicles. STT is aiming at a listing on the stock exchange, and some of the biggest names in Swedish industry have decided to become shareholders in the company.
More press releases

© STT Emtec AB, Box 46, 862 02 Njurunda, Sweden    Phone +46 60 64 10 40   info@sttemtec.com

Visiting address: Njurundavägen 16, 862 40 Njurunda, Sweden. STT Emtec, engine and emission technology.