Pyrolysis of hydrocarbons as vacuum carburizing media

Ken Ohashi, Nilson Kunioshi

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

In order to test the propensity to form soot in the vacuum carburizing method, the pyrolysis of acetylene, methane, propane, and cyclohexane as vacuum carburizing media was studied at typical operating conditions of vacuum carburizing. Under the test conditions, methane is the most stable media and propane and cyclohexane are the easiest to decompose. The propensity to form soot in the vacuum carburizing furnace varies, then, according to the media. The pyrolysis of the hydrocarbons was also calculated by means of a reaction kinetics model with a software package for combustion analysis. This model includes Polycyclic Aromatic Hydrocarbons (PAH) which are known as precursors to soot formation and growth. The calculated variation of the concentration of the pyrolyzed hydrocarbons with time agreed qualitatively with the experimental results.

Original languageEnglish
Title of host publicationProceedings of the 17th IFHTSE Congress
PublisherThe Japan Society for Heat Treatment (JSHT)
Pages121-124
Number of pages4
ISBN (Electronic)9780000000002
Publication statusPublished - 2009
Event17th International Federation for Heat Treatment and Surface Engineering Congress 2008, IFHTSE 2008 - Kobe, Japan
Duration: 2008 Oct 262008 Oct 28

Publication series

NameProceedings of the 17th IFHTSE Congress
Volume1

Other

Other17th International Federation for Heat Treatment and Surface Engineering Congress 2008, IFHTSE 2008
Country/TerritoryJapan
CityKobe
Period08/10/2608/10/28

Keywords

  • Hydrocarbon
  • Low pressure carburizing
  • Pyrolysis
  • Sooting
  • Vacuum carburizing

ASJC Scopus subject areas

  • Surfaces, Coatings and Films
  • Condensed Matter Physics
  • Mechanics of Materials

Fingerprint

Dive into the research topics of 'Pyrolysis of hydrocarbons as vacuum carburizing media'. Together they form a unique fingerprint.

Cite this