Effect of Diesel Fuel Produced from Lignite via Fischer-Tropsch Synthesis on Exhaust Emissions

Abstract

This study investigated the effect of a liquid fuel (FT diesel), produced from lignite mined in Türkiye using the Fischer-Tropsch method, on exhaust emissions when used as an alternative to conventional diesel fuel in a compression ignition engine. The study also evaluated the effects of both fuels and injection timing on exhaust emissions by changing the fuel injection timing. The findings indicated that using FT diesel fuel initiates combus-tion earlier and increases in-cylinder gas temperatures. The results indicate that FT diesel fuel can reduce hydrocarbon emissions by up to 50%, carbon monoxide emissions by 48.7%, carbon dioxide emissions by 7.8%, and soot emissions by up to 50% with appropriate in-jection strategies. Fuel properties and exhaust emissions indicate that FT diesel fuel is a suitable alternative fuel for diesel engines without requiring any modifications to the engine fuel system. It was also noted that emissions can be further reduced by optimizing injection strategies using FT diesel fuel.

Keywords

• Coal to Liquid Fuel (CTL)
• Diesel Engine
• Exhaust Emission
• FT Diesel
• Fuel Injection Timing

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