B Three way Catalysts （HS 280530） Three- Way catalysts Close- Coupled catalysts Medium- Coupled catalysts We supply different kinds of catalysts. They can meet different emission standard. Euro II, Euro III, Euro IV, Euro V. All of them have good characteristics: Lower ignition temperature Wider Air- Fuel Ratio window Heat stability Higher tail gas convert ratio Some data are showed in below chart. Performance of fresh catalysts for HC conversion Samples T50(HC) T90(HC) △T(T90- T50) Smax Fresh catalysts 247 279 32 1. 02 Aged catalysts(1) 339 382 41 0. 99 Aged catalysts(2) 338 374 38 0. 99 (1)aged at 1050 in Air and 10% steam for 5h (2)aged at 1050 in N2 and 10% steam for 5h
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