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The Open University

The three-way catalytic converter

The Open University via OpenLearn

Overview

This free course is concerned primarily with the chemistry that underpins the operation of the three-way catalytic converter that is placed in the exhaust systems of motor vehicles in order to ...

Syllabus

  • Introduction
  • Learning outcomes
  • 1. Overview
  • 4.1 Exhaust pollutants
  • 4.2 The three-way catalytic converter
  • 4.2.1 Composition
  • 4.2.2 Catalyst performance
  • 4.3 Exhaust emission characteristics
  • 4.4 The chemical reactions
  • 4.4.1 Introduction
  • 4.3.2 Removal of CO
  • 4.3.3 Removal of hydrocarbons
  • 4.3.4 Removal of NO
  • 4.3.5 Postscript
  • 4.3.6 The role of CeO2
  • 4.3.7 Chemical reactions: summary
  • 4.5 Catalyst deterioration
  • 4.5.1 Introduction
  • 4.5.2 Thermal effects
  • 4.5.3 The effect of poisons
  • 4.5.4 Phosphorus
  • 4.5.5 Sulfur
  • 4.5.6 Catalyst deterioration: summary
  • Conclusion
  • Acknowledgements

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