Catalytic purification of automobile exhaust gases

VC5.3.1.2
Catalytic purification of automobile exhaust gases
Catalytic purification of automobile exhaust gases

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Description

The so-called 'three-way catalyst' removes the three most important toxic substances from automotive exhaust simultaneously: unburned hydrocarbons, carbon monoxide and nitrogen oxides. It consists of a ceramic carrier to which noble metals such as platinum and palladium are applied. The reactions which take place include the following:

In experiment V5.3.1.2, waste gases are purified with a three-way catalyst. The waste gas used in the investigation can be either automotive exhaust or a self-made mixture of waste gases.

Components of equipment sets

1 666360 Catalytic converter LD
2 665914  4  Gas syringe, 100 ml with 3-way stopcock LD
3 667312  8  Glass connector, 2 x GL 18 LD
1 524005W2 Mobile-CASSY 2 WiFi LD
1 529676  4  Temperature probe, NiCr-Ni, 1.5 mm, type K LD
1 666425  4  Panel frame C50, two-level, for CPS LD
2 6664659  4  Adhesive magnetic board CPS, 500 mm LD
2 6664661 Holder, magnetic, size 1, 9...11 mm LD
1 6664662  4  Holder, magnetic, size 2, 11...14 mm LD
2 6664665  4  Holder, magnetic, size 5, 30...32 mm LD
1 656016  8  Bunsen burner, universal LD
1 607020  8  Safety gas hose, 0.5 m LD
1 30076  8  Laborboy 16 cm x 13 cm LD
1 667015  4  Glass file, triganular LD
1 31327 Hand-held stop-watch, 60s/0.2s LD
1 662302  8  Air bag, set of 30 LD
1 665009  4  Funnel PP 75 mm Ø LD
1 666313  8  Testing tube for NOx, 0.5...50 ppm, set of 10 LD
1 666319  8  Testing tube for CO, 0.5...7.0 %, set of 10 LD
1 666314  4  Testing tube for SO2, 1...25 ppm, set of 10 LD
2 additonally required:
exhaust sample or a self produced exhaust mixture made of nitrogen dioxide and methane or carbonmonoxide
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