A new diesel technology featuring platinum group metals (PGMs)Â is emerging as a viable option for sustainable transportation.
The technology combines low-emission diesel engines, low-sulfur diesel fuels and specialized catalytic converters featuring platinum group metals (PGMs), advanced soot filters, and other devices to cut down harmful emissions.
With improved fuel injection, electronic engine control and effective emissions controls Clean Diesel cars meet current and future emissions limits and deliver high fuel efficiency. Diesel engines can be made more efficient with the help of enhanced engine systems used in combination with catalyst technology.
Modern technology combines low-emission diesel engines, low-sulfur diesel fuels and specialized catalytic converters featuring PGMs, advanced soot filters, and other devices to cut down harmful emissions.
Platinum, palladium and rhodium – metals of the PGM family – are coated onto a substrate housed in the exhaust system and act as catalysts. PGMs are key for the conversion reactions and hence instrumental in significantly reducing emissions by up to 99 percent.
The two primary exhaust elements created by diesel engines are particulate matter (PM or soot) and nitrogen oxides (NOx).
New diesel particulate filters can capture up to 95 percent of soot, while NOx, a by-product of air being heated in the cylinder during combustion, can be controlled using Exhaust Gas Recirculation (EGR), Selective Catalytic Reduction (SCR), and NOx-Adsorber (NOx traps).
Rajani Baburajan