Johnson Matthey has unveiled a new diesel particulate filter system which can operate at lower exhaust temperatures than its previous designs, it has been confirmed.

The Low-Profile CRT(+) product is described as a passive regenerating technology which has the ability to reduce particulate matter by more than 80 per cent and hydrocarbon and CO emissions by 70 per cent.

Furthermore, the company has claimed that the system is capable of reaching the NO2 limit of 20 per cent set by the California Air Resources Board.

The Low-Profile CRT(+) features a new rectangular, two-component design with a 'flow-through' platinum catalyst placed before and separate from the filter to shield it from soot.

In addition to being compatible with all engine sizes and ultra-low sulphur diesel or B20 biodiesel fuel, the system could be applied to stationary diesel generators for emergency or back-up power.

"It is compact, easy to install and has greater filtration capacity because it accommodates more filters in its smaller package," said Jeffrey Sherman, Business Manager at Johnson Matthey's Stationary Emissions Control group.

"Equally importantly, it provides easier access with its lower height (filters accessed from the clean side) and is offered in stainless or carbon steel with a high-temperature coating."

The news arrives after a report by Swiss government research lab EMPA concluded this month that diesel cars are more environmentally friendly than battery-powered vehicles.

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JM Introduces New Low-Profile CRT(+) DPF System (01/09/10)

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