SCR systems work by injecting a urea-and-water mixture — which truck and engine makers are calling diesel exhaust fluid — into the exhaust stream just before it enters the SCR canister.

The ELIM-NOx system works on the principals of SCR — Selective catalytic reduction. SCR is the choice for Europe’s next round of emissions rules (called Euro 4) in October 2005, which are roughly ...

Selective Catalytic Reduction (SCR) is an after treatment technology that uses a urea based diesel exhaust fluid (DEF) and a catalytic converter to significantly reduce oxides of nitrogen (NOx ...

The engine complies with Euro V regulations, Mazda said in a release. But how exactly does the SCR system work? Here's the official explanation of Mazda: ...

Thus, a vanadium SCR system has several advantages for this application. This work shows experimental comparisons of state of the art vanadium SCR catalysts with base metal zeolite SCR catalysts. NOx ...

Along with the EGR, the engine features a selective catalyst reduction system that houses the diesel oxidation catalyst, the mixing pipe (for diesel exhaust fluid), and the SCR, which all work to ...

RELATED: EPA Sets Strict Emissions Standards for Heavy Trucks The systems thus far have de­pended on hot exhaust to work. This means the basic SCR system works well when the engine is under load ...

Diesel exhaust fluid, or DEF, is a key component in lowering pollutants emitted from diesel engines, helping to improve efficiency and reduce emissions.

Time to Clean The new Rislone DEF Crystal Clean™ Diesel DEF & SCR Emissions System Cleaner does exactly what you think it should. It cleans your DEF system, dissolving the crystalized urea.

ABSTRACT A laboratory study was performed to assess the potential capability of TWC+LNT/SCR systems to satisfy the Tier 2, Bin 2 emission standards for lean-burn gasoline applications.

SCR System with Removable Insulation Blankets Installed Firwin’s Senior Designer, Jon Miles says, “Ensuring a proper fit is essential when designing removable insulation blankets for SCR systems, both ...

Extensive planning led to the successful completion of an SCR construction project at Craig Generating Station in Colorado.