WASTE GAS AFTER-TREATMENT AT REDUCED CONTENT OF RHODIUM Russian patent published in 2011 - IPC B01D53/94 B01J23/44 B01J23/46 

Abstract RU 2434672 C2

FIELD: process engineering.

SUBSTANCE: invention may be used in internal combustion engines. Waste gas is forced through catalytic system 30 with catalyst containing fraction of noble metals of palladium and rhodium arranged behind ICE. In said fraction palladium and rhodium elements feature w/w exceeding 5:1, 6:1, 7:1, 8:1, 9:1, 10:1, 11:1 or 12:1. After starting ICE 10 and operating it in new European drive cycle for 30 seconds, catalyst temperature Tk exceeds 300°C.

EFFECT: reduced costs and rhodium consumption at tolerable emission level.

17 cl, 5 dwg

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RU 2 434 672 C2

Authors

Teobal'D Jorg

Degen Al'F

Pott Ehkkekhard

Dates

2011-11-27Published

2008-04-01Filed