Green diesel production from hydrotreating of oleic acid over NiMo/γ-Al2O3 and NiMoW/γ-Al2O3 catalysts
1 Center of Excellence on catalysis and Catalytic Reaction Engineering Department of Chemical Engineering Chulalongkorn University Bangkok Thailand
Pongsatorn Jantharak1 , Worapon Kiatkittipong2, Suwimol Wongsakulphasatch2,
Navadol Laosiripojana3, Suttichai Assabumrungrat1
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2 Department of Chemical Engineering, Faculty of Engineering and Industrial Technology, Silpakorn University, Nakhon Pathom Thailand
3 The Joint Graduate School of Energy and Environment,King Mongkut’s University of Technology Thonburi, Bangkok Thailand
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BiodieselBiodiesel is a promising alternative in renewable fuels production
• decreases amounts of carbon dioxide
• decrease dependence on fossil fuels
• improve the rural economics
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1st generation of biodiesel
<http://en.wikipedia.org/wiki/File:Transesterification_FAME.svg>
<http://image.made-in-china.com/2f0j00pvwQtnfKOUgu/Fatty-Acid-Methyl-Ester.jpg><http://www.extension.org/pages/27137/biodiesel-production-principles-and-processes>
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2nd generation of biodiesel
There are many advantage over trans-esterification method
Obtain product hydrocarbon like fossil fuel
Product is high cetane number and heating value
Product can blend with diesel fossil fuel more than 5%
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Experiment
• Batch reactor• H2Pressure 40 bar• Temperature 300-400 °C• Reaction time 1-5 hr• Catalyst : NiMo - NiMoW/γAl2O3
• Analysis : GC-FID
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Conclusions The addition of tungsten can improved
the product yield and catalytic activity The suitable condition of this process is at
temperature 350°C and pressure 40 bar in 2hr
The selectivity of product decreased with increasing temperature over 350°C and reaction time
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Acknowledgement(s)
Financial supports from the Thailand Research Fund and Office of Higher Education Commission are gratefully acknowledged.