Green diesel production from hydrotreating of oleic acid over NiMo/γ-Al2O3 and NiMoW/γ-Al2O3 catalysts Pongsatorn Jantharak1 , Worapon Kiatkittipong2, Suwimol Wongsakulphasatch2, Navadol Laosiripojana3, Suttichai Assabumrungrat1 1 Center of Excellence on catalysis and Catalytic Reaction Engineering Department of Chemical Engineering Chulalongkorn University Bangkok Thailand 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

Outline Introduction and Objective Results and discussion Conclusion

Biodiesel Biodiesel is a promising alternative in renewable fuels production decreases amounts of carbon dioxide decrease dependence on fossil fuels improve the rural economics

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>

Hydroprocessing Decarboxylation H2 H2 Decarbonylation Deoxygenation

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%

Experiment Batch reactor H2Pressure 40 bar Temperature 300-400 °C Reaction time 1-5 hr Catalyst : NiMo - NiMoW/γAl2O3 Analysis : GC-FID

BET surface area Al2O3 NiMo NiMoW Surface area (g/m2) 80.8 59.0 58.3

X-ray diffraction ● Al2O3 ● WO3 ● NiMoW ● NiO ● NiMo4 ● ● ● ● ● ● ● ●

Conversion NiMo

Conversion NiMoW

Selectivity NiMo

Selectivity NiMoW

Yield

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

Acknowledgement(s) Financial supports from the Thailand Research Fund and Office of Higher Education Commission are gratefully acknowledged.

Thank you for attention AND Q&A