2008•The Proceedings of the Symposium on Environmental EngineeringOpen access

314 PM Removal in Exhaust Gas Emitted from Diesel Engine with Ozone Injection DPF Regeneration(International session)

Shinpei KAWASAKI, Naohiro Fukuda, Keiichiro Yoshida, Tomoyuki Kuroki, Masaaki Okubo

Abstract

Particulate matter (PM) removal in exhaust gas emitted from a stationary diesel engine generator (displacement volume is 200 mL) is performed using ozone injection diesel particulate filter (DPF) regeneration. It is demonstrated that the DPF regeneration by injecting O_3 is achieved successfully at 250℃. The amount of O_3 consumed per PM of 1.0 g is 17.66 g(O_3)/g(PM) and the energy efficiency of PM combustion is 5.24 g(PM)/kWh. The repetitive regeneration of DPF by O_3 injection for practical application is also achieved successfully. The regeneration time is only 12% of the total operation time. It is estimated that a heavy-weight vehicle with the ozone injection DPF regeneration system can meet the new regulation by using electric power of 0.19% of the engine output This system will be applied for the exhaust gas treatment of marine diesel engine and automobile diesel engine.

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Key concepts: Diesel particulate filter, Diesel engine, Particulates, Diesel exhaust, Exhaust gas recirculation, Diesel fuel, Diesel exhaust fluid, Exhaust gas