Presentation on biodiesel by kiran aajagekar


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This is the brief presentation about the Biodiesel

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  • Not the same as straight vegetable oils, oils are converted to methyl esters BXX = volume XX% biodiesel
  • Diesel flashpoint is?
  • Biodiesel is the first and only alternative fuel to have a complete evaluation of emissions results and potential health effects submitted to the US EPA under the Clean Air Act 211 (b) Both Tier I and Tier II have been completed. Dept of Air Quality states that even w/ slight increase in nox, other benefits still makes it worthwhile - NOx reducing additive is being developed PAH (polycyclic Aromatic Hydrocarbons): Incomplete combustion from motor vehicles, domestic heating and forest fires are major sources of PAH in the atmosphere.
  • Carbon Neutral: CO2 is taken up from plants growing and then released again when combusted, no net increase in CO2 The soybean plants take up more CO2 than is released in the biodiesel Conclusion of a full lifecycle analysis conducted by the National Renewable Energy Laboratory (NREL) for the U.S. Dept of Energy and the US Dept of Agriculture (NREL/SR-580-24089 UC Category 1503) entitled "Life Cycle Inventory of Biodiesel and Petroleum Diesel for Use in an Urban Bus”
  • Presentation on biodiesel by kiran aajagekar

    1. 1. Seminar on BIO-DIESEL By- Kiran M. Aajagekar. Under the guidance of Prof. S. B. Deshmukh
    2. 2. Seminar Outline - Introduction - What is a Biodiesel - Sources of Biodiesel - Transesterification - Simple approach to make a Biodiesel - Properties of Biodiesel - Material compatibility of Biodiesel - Applications of Biodiesel - Benefits & Disadvantages of Biodiesel - Biodiesel Emissions
    3. 3. Introduction -Biodiesel -Historical background- Patrick duffy 1853 -International Biodiesel Day- 10 Aug
    4. 4. Sources - Vegetable oil - Animal fat - Jathropa ( contains 40% of oil) - Soybeans - canola / Rapeseed - Camelina - Sun flower oil - Algae & Oil palm
    5. 5. Transesterification CH2OH-R1 catalyst CH2OH |  | CHOH-R2 + 3CH3OH  3CH3OHRx+ CHOH | | CH2OH-R3 CH2OH Triglyceride 3 Methanol Biodiesel Glycerin R1, R2, and R3 are fatty acid alkyl groups (could be different, or the same), and depend on the type of oil. The fatty acids involved determine the final properties of the biodiesel (cetane number, cold flow properties, etc.)
    6. 6. Simple Approach-HowBioDisel Can Made
    7. 7. Properties of Biodiesel - Calorific value- 37.27 MJ/kg - Color- Varies from Golden to Dark Brown - Flash point- >130 °C, >266 °F - density ~ 0.88 g/cm³ - High boiling point - Low vapor pressure - Immiscible with water - No sulphur content - High Cetane number
    8. 8. Material compatibility - Plastics- HDPE is compatible, PVC is not compatible, Polysrtyne get dissolves - Metals: Biodiesel has an effect on copper- based materials (e.g. brass), and it also affects zinc, tin, lead, and cast iron. Stainless steels (316 and 304) and aluminum are unaffected - Rubber: Biodiesel also affects some types of natural rubbers
    9. 9. Applications - Vehicular use and Manufacturer acceptance - Railway uses - Aircraft uses - As a heating oil - For cleaning oil spill - In generators
    10. 10. Benefits of Biodiesel - Clean fuel that is an excellent alternative to petroleum. - Hundred percent renewable - A positive impact on the environment - No or little vehicle modifications or special fuelling equipment - With a high flash point, biodiesel is safer to handle and store - provides excellent lubricity to the fuel injection system
    11. 11. - Provides significantly reduced emissions of carbon monoxide, particulate matter, unburned hydrocarbons, and sulphates - Helps reduce the risk of global warming by reducing net carbon emissions to the atmosphere - Being derived from vegetable oils, biodiesel is naturally non-toxic - In both soil and water, biodiesel degraded at a rate 4 times faster than regular diesel fuel - can be made from different oils and fats, waste products. Waste cooking oil, animal feed mixtures can be converted to high quality biodiesel
    12. 12. Disadvantages • Lower Energy Content • Less energy produces , but have also higher cetane , lubricity, etc. • Poor cold weather performance • This can be mitigated by blending with diesel fuel or with additives, or using low gel point feedstocks such as rapeseed/canola. • Stability Concerns • Biodiesel is less oxidatively stable than petroleum diesel fuel. Old fuel can become acidic and form sediments and varnish. Additives can prevent this. • Scalability • Current feedstock technology limits large scalability
    13. 13. Biodiesel Emissions
    14. 14. Conclusion - By knowing about the biodiesel as a fuel we came to know that, biodiesel is the today's best alternatives for the fossils fuels like diesel and gasoline. - It can be used in vehicles with some modification in the vehicle - Production of biodiesel is easy as compared to the fossil fuels, also it is easy to handle and less pollutant than that of fossil fuels. - Biodiesel is environment friendly and human friendly
    15. 15. References Biodiesel documentation of worldwide status 1997
    16. 16. Thank You
    17. 17. ?