animal fats → health problems healthy eating style oil discharged alternative source of energy
TRANSCRIPT
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IntroductionIntroduction
•Animal fats → health problems
•Healthy eating style
•Oil discharged
•Alternative source of energy
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Why Biodiesel?
Petroleum is running out Little or no modifications of diesel
engines needed Biodegradable Nontoxic, safe to use Renewable
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Advantages of using Biodiesel over diesel
No sulphur dioxide
emission
Higher cetane number
Leaves less dirt in tank
and fuel system
Useful by-product
obtained glycerine
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Transesterfication
Useful Products:
1) glycerin
2) esters
NaOH
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• To investigate the To investigate the possibilitypossibility of of using using different kinds of different kinds of lipids (fats lipids (fats and oils)and oils) in the production of in the production of BiodieselBiodiesel..
• To To comparecompare the the effectivenesseffectiveness of of different kinds of Biodiesel.different kinds of Biodiesel.
• To investigate the possible uses of To investigate the possible uses of the the by-product glycerinby-product glycerin..
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A. MAKING BIODIESEL
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Mix 0.7g of NaOH(s) and 40 cm3 of methanol to from sodium
methoxide
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• Mix sodium methoxide and 200ml of oil/fat, with continuous stirring using a magnetic stirrer.
• Temperature monitored by a thermometer and maintained at 50 oC
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Using separating funnel to separate biodiesel from glycerin
Biodiesel
Glycerin
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Removing unreacted sodium hydroxide and methanol
Water for washing
Biodiesel
Washing biodiesel using water
Before washing, biodiesel turns pH paper blue.
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Biodiesel with traces of water remains after washing
Dry cobalt(II) chloride paper turns from blue to pink.
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Biodiesel is dripping through a column packed with anhydrous calcium sulphate.
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Dried Biodiesel tested with dry cobalt (II) chloride paper
Dry cobalt(II) chloride paper remains blue
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Biodiesel made up of chicken oil
Various kinds of Biodiesels
Biodiesel made up of pig oil
Biodiesel made up of waste oil
Biodiesel made up of canola oil
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Self-made Calorimeter
To measure the energy released by burning different Biodiesel
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Run Fuel
1 Pig Oil Fuel
2 Chicken Oil Fuel
3 Waste Canola Oil Fuel
4 Canola Oil Fuel
5Canola Oil Fuel mixed with Pig Oil Fuel (2:1)
6Canola Oil Fuel mixed with Pig Oil Fuel (1:1)
7Canola Oil Fuel mixed with Chicken Oil Fuel (1:1)
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Fuel Energy released (J / g)
Pig Oil Fuel 37456
Chicken Oil Fuel 36259
Waste Canola Oil Fuel 24570
Canola Oil Fuel 24600
Canola Oil Fuel mixed with Pig Oil Fuel (2:1) 38050
Canola Oil Fuel mixed with Pig Oil Fuel (1:1) 34322
Canola Oil Fuel mixed with Chicken Oil Fuel (1:1) 33174
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- to see which fuel produces the least amount of soot
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Fuel
Sootiness of flame(Scale: *not sooty → ***
**very sooty)
Pig Oil Fuel *****Chicken Oil Fuel * ***
Waste Canola Oil Fuel **Canola Oil Fuel *
Canola Oil Fuel mix with Pig Oil Fuel (2:1) **
Canola Oil Fuel mix with Pig Oil Fuel (1:1) ***
Canola Oil Fuel mix with Chicken Oil Fuel (1:1) ***
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-to determine which fuel retains its fluidity and flows best at low temperature
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Uses of side-product of biodiesel production: Glycerin
3 cm3 of castor oil is added to 45 cm3 of NaOH.
NaOH
Castor oil
Preparation of Glycerin Soap
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The mixture was then heated for 30 mins with constant stirring.
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A few cm3 of glycerin and 20 ml of ethanol are added to the mixture with constant stirring.
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Some saturated NaCl solution is then poured into the mixture for salting out the soap.
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The residue is filtered and washed with distilled water, then set hard in a mould to obtain the glycerin soap.
Glycerin Soap
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Error
Ways to improve
Heat loss to the surroundings during measurement of the heat of
combustion
Improve the accuaracy of the calorimeter
- reduce heat exchange between the environment
and the set-up
- burn a greater mass of biodiesel and use a larger amount of
water for measuring the temperature rise
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During the formation of Biodiesel, temperature
of the mixture was not always kept below 60 oC
- methanol might evaporate
- formation of Biodiesel was affected
Error
Ways to improve
Use a spotlight or a heat lamp which can control
the temperature steadily to around 50 oC
- rapid evaporation of methanol is prevented
- Biodiesel can be formed more effectively
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During the measurement of sootiness of the flame,
comparison was only made by naked eyes.
Error
Ways to improve
Using “weighing by difference” to measure the
mass of soot being formed.
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1.1. Pour PointPour Point use dry ice-to lower the temperature below 0 oC
2.2. Perform Perform more systematic blendingmore systematic blending between different types of oils forbetween different types of oils for better comparison: 1) the more energy-efficient Biodiesel 2) the one which produces the least amount of soot
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3. Explore the possibility of using other animal fats to produce biodiesel
4. Compare the amount of energy and soot produced by biodiesel and conventional diesel.
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1. The most efficient fuel is…
releases the greatest amount of
energy per gram
performed best when testing the
pour point
highest fluidity at 0 oC
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2. Animal fats can also be used to produce biodiesel
Animal fats Biodiesel
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Production of Biodiesel can be shifted from Vegetable Oil to Animal Fats
Conclusion (cont’)
Production of Biodiesel
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Animal-Fat Biodiesel vs Vegetable oil BiodieselAnimal-Fat Biodiesel vs Vegetable oil Biodiesel
- larger cetane number, - better ignition quality
Food source for direct consumption
- smaller cetane number, - poorer ignition quality
Animal-Fat Biodiesel
Vegetable-Oil Fuel
Conclusion (cont’)
More expensive fuel stock due to increasing demand and running out of raw materials under extreme weather
Guarantees a steady supply of fat and avoids shortage
Making use of waste instead of materials that have alternative uses.
Releases more energy Releases less energy
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After further refining, glycerin can be used in Soap Food Pharmaceutical products Drugs Cosmetics
The crude glycerin can be used to produce Hydrogen which can be used as automobile fuel
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http://en.wikipedia.org/
http://www.journeytoforever.org/
http://www.chemistryland.com/Biodiesel/
http://www.docstoc.com/docs/23106026/Experiment-4-%E2%80%93-Biodiesel
http://www.nora-oilheat.org/site20/uploads/factfinding1.pdf
http://alexandresis.deviantart.com/art/Biodiesel-53559444
Photos:
1. http://image.8-lug.com/f/readersrides/0901_8l_readers_rides_diesel_trucks/18
440391+pheader_460x1000/0901_8l_01+readers_diesel_trucks+2008_f250.jpg
2. http://www.conniesicottedesigns.com/
3. http://www.newsoftworld.com/forums/pakistan/5784-plz-b-alert-sochie-zara-cooking-oil-history-
pakistan.html
4. http://livinlavidalocarb.blogspot.com/2006/02/canola-oil-low-in-saturated-fat-but-is.html
5. http://205.153.241.230/issues/emergejan2005/index.html
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Conservation of Energy, Land and Water
Reduces Emission of - sulphur dioxide- waste water - hazardous waste compared to
petroleum
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Continuous Microbial Fermentation---Ito et al. (2005)
Catalytic reforming operating at moderate temperatures and pressures. ---Wood (2002)
Steam reforming of glycerin in the gas phase with metals catalysts. ---Hirai et al. (2005)
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Biodiesel is also not the same as ethanol. Ethanol is a renewable biofuel made primarily from corn and intended for use in gasoline-powered engines, while biodiesel is a renewable biofuel made from a variety of materials and designed for use in diesel engines, with different properties and benefits.