recycling of waste cooking oil
TRANSCRIPT
BIODIESEL from waste cooking oil
A Presentation byDipu Saha [1202051]
Abdullah Al Masud [1202019]Isteaque Ahmed [1202024]
Muzahidul Islam Anik [1202023]
Fuels Solid fuel Liquid fuel Gaseous fuel
Wood, coal, pit, dung Petroleum, Diesel, Gasoline, Kerosene, LPG, coal tar, Naphtha, Ethanol
Natural gas, hydrogen, propane, Methane, Coal Gas, Water Gas
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Fuel consumption
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Alternative Fuels
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Biodiesel basics
A biodegradable, combustible fuel made from vegetable oils and/or animal fats
Usually done by base‐catalyzed trans‐esterification of fats/oils (i.e. make a big multi‐chain molecule into 3 smaller molecules)
Commercial biodiesel is sold as a “blend” with regular ultra low sulphur diesel (ULSD) (e.g. B10)
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Waste cooking oil(WCO)
Edible oil after cooking/using produces significant amount of “Free Fatty Acid(FFA)” which can be converted to biodiesel.
Can be found anywhere as household cooking, Restaurants, Food courts, And many more.
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Biodiesel from WCOReaction 1: Esterification of FFA(Free Fatty Acid)
FFA(from WCO)
CH3OH Ester
Reaction 2: Transesterification reaction
Triglyceride CH3OH
H2SO4
GlycerinbiodieselKOH
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Biodiesel from WCO(PBD)Filter waste
oilSettle out
water reactor Heat & stir
H2SO4MethanolKOHStart processing
Reaction 1 & 2
Settle Glycerin
Separate glycerin
Reaction completion
test
Final drying cycle
Wash cycle to remove
methanolFinished
fuel
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Factors considering the Biodiesel Reaction Waste oil type: Bacon grease and other solid greases are not
acceptable for biodiesel production since they raise the cloud point and could cause cold weather problems.
Restaurant fryer oils: Tend to be high in free fatty acids which results in lower yields of biodiesel due to soap production during the reaction.
High water content in the oil: Water impedes the biodiesel reaction resulting in only partial conversion of the oil to biodiesel.
The temperature should be lower than 60˚c
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Waste disposal & Byproducts
Waste water from the fuel washing process (approximately 1 gallon of water for every gallon of biodiesel)
Glycerine is drained off at the end of the fuel production process (approximately 1 gallon for every 3 gallons of biodiesel)
Both the waste water and Glycerine have small amounts of methanol in them.
Crude glycerine from the biodiesel conversion process has three possible uses:
Compost accelerator Methane booster in anaerobic digesters Soap production
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Comparison
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Comparison
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Daphne Utilities, ALABAMA
Soap from recycled cooking oil 13
Bangladesh perspective
Bangladesh is a small developing country with huge population
We are largely dependent on foreign oil. About 93% fuel are imported.
About 59.60% of the population has access to electricity which consume large amount of natural gas.
We should come with renewable and alternative fuel for sustainable future.
Govt. has planned to produce 10% of total energy from renewable alternative energy sources by 2020.
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Bangladesh perspective
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Conclusion
Recycling of waste cooking oil Making a contribution in diesel consumption Reduced toxics emission Creating an impact on oil market
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THANK YOUQuestions?!
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