Recent Advancements in After-Treatment Technology for Internal Combustion Engines—An Overview

  • Gaurav Tripathi
  • Atul DharEmail author
  • Amsini Sadiki
Part of the Energy, Environment, and Sustainability book series (ENENSU)


The increasing health problems due to engine exhaust and tightening of emission norms for engine exhaust force us to use exhaust after-treatment techniques. Carbon monoxide, carbon dioxide, unburnt hydrocarbon, particulate matter, and oxides of nitrogen are main automobile engine exhaust emissions. Most commonly, diesel oxidation catalysis effectively reduces unburnt hydrocarbon emission, diesel particulate filter reduces particulate matter emission, and selective catalytic reduction and NO x trap technology reduce NO x emissions. Recent advances include reduction with and without filter, reduction with catalyst and without catalyst, and some other after-treatment techniques such as plasma-assisted techniques, NO x and soot combined reduction. This chapter provides overview of recent advancement in various after-treatment techniques and challenges of these technologies.


Exhaust after-treatment technology Selective catalytic reduction Emissions DPF DOC 


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Copyright information

© Springer Nature Singapore Pte Ltd. 2018

Authors and Affiliations

  1. 1.School of EngineeringIIT MandiMandiIndia
  2. 2.Technische Universität Darmstadt, Institute of Energy and Powerplant TechnologyDarmstadtGermany

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