Progress in localization and performance verification of DPF substrates

DPF catalyst is an exhaust after-treatment technology applied to diesel engines. It can effectively reduce particulate matters in exhaust gas. In recent years, it has been widely used in commercial vehicles, engineering/agricultural machinery, ships, and other fields. In the early days, the wall-flow honeycomb ceramic substrates production technologies are basically monopolized by foreign manufacturers. Recently, however, domestic manufacturers have made great progress in related technologies. The product has caught up with foreign competitive products. Several DPF substrates are selected from domestic manufacturers and the comprehensive performance are fully studied comparing with the ones from foreign competitors.