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Presented By, M.Shree Priyanga (092BT143) R.Sindhu (092BT144) Date:11 th,June,2012. BASICS & CHEMISTRY OF BIODIESEL.

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Presentation on theme: "Presented By, M.Shree Priyanga (092BT143) R.Sindhu (092BT144) Date:11 th,June,2012. BASICS & CHEMISTRY OF BIODIESEL."— Presentation transcript:

1 Presented By, M.Shree Priyanga (092BT143) R.Sindhu (092BT144) Date:11 th,June,2012. BASICS & CHEMISTRY OF BIODIESEL

2 Basics Methyl or ethyl ester of fatty acid Jatropha curcas, Pongamia Pinnata, Calophyllum inophyllum, Hevca brasiliensis etc. Blending Clean fuel Substantial Reduction Cetane Number Specifications

3 contd B20 US Environmental protection agency B100 Department of Energy and Transportation of US Reduction in particulate matter (25-50%) Marginal increase in Nitrous Oxide Production – 100 million Gallons,reduction of taxes Raw materials –Europe –Sunflower, Rape seed USA- Soya Thailand-Palm Oil

4 contd Viscosity – 1.9 – 6 centi stokes Biodiesel Blend –USA 20%, European countries 5-15% Germany filling stations Benefits It is safe to handle, store, transport Nontoxic and Biodegradable High flash point Reduces air toxic Engine Performance

5 Biodiesel Chemistry  Biodiesel: Industrial production – “cracking of petroleum”  Vegetable oil: three of those long chains are stuck onto a glycerin backbone  Diesel fuel: one long chain of carbon atoms studded with hydrogen atoms  Biodiesel chemistry: breaking those long carbon chains off the glycerin backbone

6 Biodiesel Chemistry Transesterification  Triglyceride Fats and oils  Glycerin, or Glycerol, is primarily found in nature as the linking chemical in fats  Fats are also known as triglycerides  Three hydrocarbon chains linked to one glycerin molecule

7 Biodiesel Chemistry Transesterification Steps involved: methanol molecules a catalyst –bridge chemical gap catalyst breaks bonds glycerin and the three fatty acids methanol binds to fatty acids forms biodiesel and also a crude glycerin

8 Biodiesel Chemistry: Biodiesel Production oil + methanol + KOH [at 50 ◦c] Bioreactor  Settling  Washing  Purification  Evaporation PURE BIODIESEL Noted :  Water Saponification –FFA ↓ water -↑ biodiesel  Catalyst Twice the volume of oil  Reversible balance Glycerine BIODIESEL Methanol Recovery Evaporation

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