Technology

 

Advanced reagent injection system for urea or hydrocarbons.

We have developed technology for selective catalytic reduction (SCR) using urea, which is a highly effective

method of reducing oxides of nitrogen (NOx). ARIS® technology forms a key part of the SCR system and is

an advanced, computer-controlled, reagent injection system. The ARIS® system is a single-fluid system with very few components and doesn't require compressed air. It covers a concept for injecting urea into the engine exhaust where it reacts across a catalyst to reduce NOx to nitrogen (N2) and water vapor.


We have numerous U.S. and corresponding international patents on the use of ARIS® technology that teach how to successfully apply the proven SCR process for mobile applications, transferring the learning from over 30 years of SCR use in power generation, with emission control that is sulfur tolerant and can be used with all types of fuel.

 Features of ARIS® technology include:

  • Unique return flow design with integral cooling allowing airless injection of reagents in challenging high-temperature environments such as exhaust streams;

  • Compact design with precise injection control and good atomization;

  • Single fluid, return flow design not prone to injector clogging commonly found in non-return flow systems;

  • Airless nature eliminates the requirement, installation issues and costs of compressed air for traditional air-assisted injection; and

  • Applicable for mobile (on-road and off-road) and stationary applications.

Our ARIS® technology applies to single-fluid systems, methods of control and the combination of SCR with exhaust gas recirculation technology (EGR). This SCR/EGR combination is preferred by industry leading vehicle manufacturers in new diesel engines to maximize NOx reduction.

ARIS® technology also provides reliable hydrocarbon (HC) injection into the exhaust stream for applications including lean NOx traps, reformer systems and diesel particulate filter active regeneration.

Effective heat removal and reliable, trouble-free fuel injection for durable exhaust emissions systems performance is a paramount consideration for designing original equipment manufacturer (OEM) and retrofit solutions.