1 / 16

CATALYTIC CONVERTERS

CATALYTIC CONVERTERS . PREPARED BY; MUHAMMED DOĞAN 9/B 232. CONTENT. The Origin The Usage & Importance The Dangers The Development The Types How They Work For The Future Quiz Time . The Origin. Eugene Houdry around 1950 for smoke stacks. The Usage & Importance.

jennis
Download Presentation

CATALYTIC CONVERTERS

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. CATALYTIC CONVERTERS PREPARED BY; MUHAMMED DOĞAN 9/B 232

  2. CONTENT • The Origin • The Usage & Importance • The Dangers • The Development • The Types • How They Work • For The Future • Quiz Time

  3. The Origin • Eugene Houdry • around 1950 • for smoke stacks

  4. The Usage & Importance • made up of platinum, palladium and rhodium • speed up chemical reactions • dangerous gases ---- less dangerous. • environment hygiene

  5. The Dangers • Nitrogen oxides,NO and NO2----acid rains. • Carbon monoxide(CO) burn in insufficient oxygen---- poisonous. • Unburnt hydrocarbons ------ cancer.

  6. The Development • Eugene Houdry, for gasoline engines, mid 1950s • John J. Mooney & Carl D. Keith, for creating the first production catalytic converter, 1973.

  7. The Types • 2 types; • Two-way (Oxidation) • Three-way (Oxidation-Reduction)

  8. Two-Way (Oxidation) • 2 simultaneous task:  Carbon monoxide burns with oxygen to form carbon dioxide: 2CO + O2 2CO2 • Hydrocarbons burn with oxygen to carbondioxide and water: CxH2x+2 + [(3x+1)/2] O2xCO2 + (x+1) H2O • diesel engines --- reduce hydrocarbon and carbon monoxide emission. • gasoline engines until 1975.

  9. Three-Way (Oxidation- Reduction) • 3 simultaneous tasks: • Reduction of nitrogen oxides to nitrogen and oxygen: • 2NOx → xO2 + N2 • Carbon monoxide burns with oxygen to form carbon dioxide: • 2CO + O2 → 2CO2 • Hydrocarbons burn with oxygen to form carbon dioxide and water: • CxH2x+2 + [(3x+1)/2]O2 → xCO2 + (x+1)H2O • have been used since 1975. • for vehicle emission control system.

  10. How They Work? http://www.fordscorpio.co.uk/cats.htm

  11. Forthe future

  12. Quiz Time • Question #1: What year did the catalytic converter make its debut? A-1965 B-1975 C-1985 THE ANSWER IS ‘B’

  13. Quiz Time • Question #2: In chemistry, what is the name of a substance that causes or accelerates a chemical reaction without itself being affected? A- Cascade B- Cathode C- Catalyst THE ANSWER IS ‘C’

  14. Quiz Time • Question #3: A standard catalytic converter contains several hundred dollars worth of what materials? A- Gold, silver and bronze B- Platinum, palladium and rhodium C- Chromium, platinum and silver THE ANSWER IS ‘B’

  15. The End • Thanks for listening to me 

  16. REFERENCES • http://auto.howstuffworks.com/catalytic-converter-quiz.htm • http://www.obitet.gazi.edu.tr/obitet/yakitlar_yaglar/euro%202003%20emisyon1.htm • http://www.fordscorpio.co.uk/cats.htm

More Related