Hydrocarbon (HC) reduction of exhaust gases from a homogeneous charge compression ignition (HCCI) engine using different catalytic mesh-coatings

Olof Erlandsson*, Bengt Johansson, Fredrik A. Silversand

*Corresponding author for this work

Research output: Contribution to conferencePaperpeer-review

5 Scopus citations

Abstract

A FeCrAlloy mesh-type catalyst has been used to reduce hydrocarbons (HC) and carbon monoxide (CO) emissions from a 4-stroke HCCI engine. Significant for the HCCI engine is a high compression ratio and lean mixtures, which leads to a high efficiency, low combustion temperatures and thereby low NOx emissions, <5 pmm, but also low exhaust temperatures, around 300°C. It becomes critical to: 1. Ensure that the HCCI-combustion generates as low HC emissions as possible, this can be done by very precise control of engine inlet conditions and, if possible, compression ratio. 2. Ensure that the exhaust temperature is high enough, without loosing efficiency or producing NOx; in order to get an oxidizing catalyst to work. 3. Select proper catalyst material for the catalyst so that the exhaust temperature can be as low as possible. This study focuses on the latter point although the exhaust temperature and exhaust gas composition is varied through different air/fuel ratios and exhaust gas recycling (EGR).

Original languageEnglish (US)
DOIs
StatePublished - Dec 1 2000
EventInternational Spring Fuels and Lubricants Meeting and Exposition - Paris, France
Duration: Jun 19 2000Jun 22 2000

Other

OtherInternational Spring Fuels and Lubricants Meeting and Exposition
CountryFrance
CityParis
Period06/19/0006/22/00

ASJC Scopus subject areas

  • Automotive Engineering
  • Safety, Risk, Reliability and Quality
  • Pollution
  • Industrial and Manufacturing Engineering

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