Test results on engine • DPF size: 9‘‘ x 5‘‘ • 300cpsi, 10mil • 54% porosity, 11µm pore diameter PN efficiency on engine bench, WHTC Regeneration with drop-to-idle NO. 1 Regeneration temp ( ℃ ) 620 Soot load (g/l) 5,1 Peak temp ( ℃ ) 850 2 620 3 620 4 600 6 961 7,7 1142 6 740 Tests at Dinex Stage IV: 8g/kWh NOx, 15mg/kWh PM Test on customer engine Regeneration Dinex SCR catalysts portfolio Washcoat Vanadia KSCR4 and KSCR4.1 Fe- β -zeolite KSCR5 Cu-zeolite KSCR3 SCR activity T 50 : 210°C – 260°C ≥ 95%: 250 °C – 400°C T 50 : 300°C ≥ 90%: 400 °C – 650°C T 50 : 180°C ≥ 98%: 250 °C – 400°C S-tolerance Temp. stability High up to 600°C High up to 850°C Low up to 800°C N 2 O formation at high Temp, low Low yes, depen. on NO2 Vanadia , KSCR4, 4.1 Substrate: 300cpsi, metallic HT 600 aged / 20h Fe-SCR , KSCR5 Substrate: Cordierite 400/4 Cost + - - Cu-SCR, KSCR3.3 Substrate: Cordierite 400/4 Test gas: 400ppm NO 2 / 600ppm NO, 1000 ppm NH 3 , 10% O 2 , 10% water, balance N 2 , GSV 50.000 h -1 Example MDD application – Euro VI standard DOC Cordierite 400cpsi, 4mil Catalyst:KD4.1z, 26g/cft Pt:Pd (2.6:1) DPF Cordierite 300cpsi, 9mil ACT Catalyst: KF2, 3g/cft Pt SCR+ASC Cordierite 600cpsi, 3mil Catalyst: KSCR3.3 Cu-zeolite 120g/l 1.5‘‘ KA1, 1.5g/cft Pt Dinex.net
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