Production of biodiesel from Jatropha

1. Prof. Ram Meghe Institute of Technology And
Research , Badnera
Department of Mechanical Engineering
A Seminar On
“Production of Biodiesel from Jatropha”
Presented By Guided By
Piyush R. Shiraskar Dr. S.B.Thakare

2. CONTENTS
INTRODUCTION
OBJECTIVES
WHAT IS JATROPHA?
METHODOLOGY
PROCESSING
ADVANTAGES
DISADVANTAGES
APPLICATION
CONCLUSION
REFERENCES

3. INTRODUCTION
•Technology has generally led to greater use of hydrocarbon fuels,
making civilization vulnerable to decrease in supply.
•Biodiesel is an alternative fuel for diesel engine.
•It is domestic, renewable fuel for diesel engine derived from
natural oil like Jatropha

4. OBJECTIVES
• The energy sources used in engine are limited and
decreasing gradually. So that’s why an alternative fuel
for engine is required.
• From jatropha seeds jatropha oil can be extracted
which have similar properties as diesel.

5. What is Jatropha ?
• Shrub: 2 meters in height
• Draught resistant and perennial
• Starts producing after first year of
plantation
• It grows well on low fertility soils
Plant

6. • Seeds contain 50-60% oil (approx. 30%
is extractable)
• Oil: non-edible
• Seed production: 7tons per acre per
annum
• Jatropha produces seeds for 30-40 years
Seed

7. Methodology
• Vegetables oils can’t be used directly in the diesel engine.
• It has been found that transesterification is the most effective
way to reduce the viscosity of vegetable oils
• Transesterification is the process by which biodiesel is
produced.

8. Processing
Transesterification Process
O
||
CH2-O-C-R
| O O CH2-OH
| || NaOH || |
CH-O-C-R + 3 CH3OH --------------> 3 CH3-O-C-R + CH-OH
| |
CH2-O-C-R CH2-OH
||
O
Triglyceride Methanol Esters Glycerol

9. Schematic diagram of biodiesel processing

10. Advantages
• Provides a domestic and renewable energy supply.
• Biodiesel can be use directly in CI engine with no
substantial modification of the engine.
• Blending of biodiesel with diesel fuel increases engine
efficiency.
• The higher flash point of biodiesel makes its storage safer.
• Biodiesel degrades four times faster than diesel.

11. Disadvantage
• Low availability due to less production of jatropha in
India.
• Blends of biodiesel possible upto 20% only.
• Biodiesel is less sustainable for use in low temp than
petrol and diesel.

12. Application
• Railway usage
• Aircraft use
• Generating electricity
• Vehicles
• Removing paint and adhesives

13. Conclusion
• By blending of 20 percent biodiesel with diesel will help India to save
7.3x106 tones of diesel per year.
• In India about 33 million hectares of wasteland is available and can
effectively be used for cultivation of jatropha plants.
• It offers business possibility to agricultural enterprises and rural
employment.

14. Reference
• Jon H. Van Gerpen, Charles L. Peterson, Carroll E. Goering, Biodiesel: An Alternative
Fuel for Compression Ignition Engines , For presentation at the 2007 Agricultural
Equipment Technology Conference Louisville, Kentucky, USA 11-14 February 2007.
• ASTM. 2002. D 6751 –Standard specification for biodiesel fuel (B100) blendstock for
distillate fuels. West Conshohocken,Penn.:ASTM International.
• ASTM. 2006. Standard Specification for Diesel Fuel Oils.West Conshohocken,
Penn.:ASTM International.
• Prof. (Dr.) R. K. Khotoliya , Dr. Harminder Kaur & Rupinder Sing, Biodiesel
Production from Jatropha (Source-Kurukshetra, volume-55, No-4, February-2007).

15. Thank You..!