Surrogate fuel formulation for light Naphtha fuel

Khalid Al-Qurashi*, Issam Khesho, William Roberts

*Corresponding author for this work

Research output: Contribution to conferencePaperpeer-review


Light naphtha is a light fraction and less processed refinery product. Hence, it is more economical to produce than the conventional gasoline and diesel fuels. Recently, light naphtha was proposed as a future fuel for advanced combustion engines. In this research, a motored engine study using premixed charge of fuel and air was performed to develop and formulate surrogate fuels for the light naphtha. Experiments were performed by delivering a premixed charge of fuel and air at equivalence ratio of 0.33 and intake temperature of 150oC. The engine speed was fixed at 600 rpm. The compression ratio was increased in a stepwise manner to increase the extent of reaction until a point where significant evolution of carbon dioxide (CO2), indicative of high temperature heat release, was observed. In light of detailed hydrocarbon analysis (DHA), four surrogate fuels were created with two-, three-, four-, and five-palette compounds. RON 66 is the selected property of the light naphtha that is to be matched by the surrogate fuels. Results showed the impact of the hydrocarbon classes on the autoignition and demonstrated that among the four surrogate fuels, the five-component surrogate satisfactorily resembles the autoignition behavior of the light naphtha.

Original languageEnglish (US)
StatePublished - 2017
Event10th U.S. National Combustion Meeting - College Park, United States
Duration: Apr 23 2017Apr 26 2017


Conference10th U.S. National Combustion Meeting
Country/TerritoryUnited States
CityCollege Park


  • Auto-ignition
  • Naphtha
  • Surrogates

ASJC Scopus subject areas

  • General Chemical Engineering
  • Physical and Theoretical Chemistry
  • Mechanical Engineering


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