Emissions control specialist Clean Diesel Technologies has announced the European launch of a new catalyst system designed to reduce NOx levels from heavy vehicle engines.
CDT, which develops systems to reduce particulates in combustion engines, is integrating urea dosing units into its existing selective catalytic reduction systems (SCRs) for the first time. According to the US company, it will be the first commercially available and fully integrated airless urea injection tool in Europe, and will help the automotive sector to achieve the NOx emission reduction levels required under stringent EU legislation.
Based on CDT's proprietary Advanced Reagent Injector System (ARIS) — a return-flow design that avoids the need for complex air-assisted injection systems — the company is looking to target the burgeoning retrofit and original equipment automotive markets throughout
.
CDT claims its core SCR technology is now used by the majority of heavy-duty diesel truck and bus manufacturers, to ensure compliance with EURO 4 and 5 NOx rules on vehicle emissions.
SCR uses a reductant, normally ammonia or urea, which is injected into the exhaust gas to help reduce oxides of nitrogen over a catalyst. According to the company, the system can reduce NOx emissions by 70-90 per cent.
Tim Rogers, executive vice-president of CDT, said: 'With this technology we can supply a complete urea dosing unit into the retrofit and the heavy-duty original equipment sectors. The airless dosing unit paves the way to retrofit a large number of older trucks and buses, allowing them to achieve significant reductions in NOx emissions.'
CDT hopes to license its technology to suppliers within the automotive sector who are looking to meet OEMs' demand for newer, simpler and more efficient methods of urea injection.
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