Diesel/lean NOx Catalyst Technologies |
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Page 21
... filter efficiency for particulates as well as a high catalytic activity in the temperature range below 300 ° C are required . For this purpose a well established diesel particulate trap has been coated with a Pt / zeolite catalyst ...
... filter efficiency for particulates as well as a high catalytic activity in the temperature range below 300 ° C are required . For this purpose a well established diesel particulate trap has been coated with a Pt / zeolite catalyst ...
Page 37
Society of Automotive Engineers. Fig . 14 Load - up charactaristic of an uncoated particulate trap ( ... ) and a coated Pt / ZSM - 5 particulate trap ( - ) , 50 g / ft3 Pt Fig . 15 Worst - case regeneration of an uncoated. active fuel ...
Society of Automotive Engineers. Fig . 14 Load - up charactaristic of an uncoated particulate trap ( ... ) and a coated Pt / ZSM - 5 particulate trap ( - ) , 50 g / ft3 Pt Fig . 15 Worst - case regeneration of an uncoated. active fuel ...
Page 39
... trap the decrease of back - pressure is more complete . Second , the temperature behind the catalyst increases to ... particulate trap is tested in a " hot " FTP test cycle . Upstream of the particulate trap a constant level of 60 l / h ...
... trap the decrease of back - pressure is more complete . Second , the temperature behind the catalyst increases to ... particulate trap is tested in a " hot " FTP test cycle . Upstream of the particulate trap a constant level of 60 l / h ...
Contents
Research Results on Processes and Catalyst Materials | 1 |
962042 | 11 |
Aftertreatment System for NOx and Soot Removal Evaluation | 19 |
Copyright | |
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Common terms and phrases
50 g/ft³ Pt achieved additional fuel consumption adsorber catalyst adsorption adsorption capacity C/NO catalyst efficiency catalyst technology Catalyst Temperature catalytic activity catalytic reduction coated components conversion efficiency cordierite diesel engine diesel exhaust diesel exhaust gas Diesel Oxidation Catalysts DOCS engine bench Engine Speed EUDC European driving cycle evaluation exhaust gas exhaust gas temperature feed gas HC flow reactor fuel injection HC conversion HC storage HC types HC/NO high Pt loading hydrocarbons increase laboratory lean burn lean burn engine lean NOx conversion light-off temperatures light-off testing low dispersion model catalysts molecular sieves MVEG MVEuro n-decane nitrogen oxide noble metal NOx emissions NOx reduction oxygen particulate trap passenger cars performance Platinum propene ranking reaction reducing agent reduction of nitrogen regeneration samples secondary fuel injection series catalysts shown in figure shows space velocity temperature range temperature window test bench thermal vehicle testing washcoat zeolite