homemade biodiesel
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MATERIAL
PROCEDURE
DISCUSSION
SCIENCE PROJECTHOME
MATERIALSMATERIALS
Methanol, CHMethanol, CH33OHOHVegetable OilVegetable Oil
Molecular FormulaMolecular Formula: C: C6666HH100100OO66
Solubility in WaterSolubility in Water: Insoluble: InsolubleDensity at 20°CDensity at 20°C: 0.91 g/cm3: 0.91 g/cm3UsesUses: Cooking, lubrication, fuel source : Cooking, lubrication, fuel source
Sodium Hydroxide (NaOH)Sodium Hydroxide (NaOH)
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PROCEDUREPROCEDURE
STEP 1 STEP 1 250ml of methanol prepared in glass bottle.250ml of methanol prepared in glass bottle. Add ½ spoon of NaOHAdd ½ spoon of NaOH Stir until all NaOH dissolve.Stir until all NaOH dissolve.
Step 2Step 2 Heat vegetable oil until temp reach 60Heat vegetable oil until temp reach 6000c.c.
Step 3Step 3 Pour vegetable oil onto 2L of plastic bottle.Pour vegetable oil onto 2L of plastic bottle. Add the mixture of methanol and NaOH.Add the mixture of methanol and NaOH. Shake for 20 seconds.Shake for 20 seconds.
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DISCUSSIONDISCUSSION
This process called Trans-Esterification.This process called Trans-Esterification.
Step 1Step 1 CHCH33OH + NaOH OH + NaOH CH CH33ONA +HONA +H22OO
Step 2Step 2 Vegetable oil Vegetable oil Hot Vegetable oil Hot Vegetable oil
Step 3Step 3 CH3oNa + Hot Vegetable oil CH3oNa + Hot Vegetable oil Biodiesel + ppt Biodiesel + ppt
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INTRODUCTIONINTRODUCTION
Biodiesel is a form of diesel fuel Biodiesel is a form of diesel fuel manufactured from vegetable oils, animal manufactured from vegetable oils, animal fats, or recycled restaurant greases. fats, or recycled restaurant greases.
It is safe, biodegradable, and produces It is safe, biodegradable, and produces less air pollutants than petroleum-based less air pollutants than petroleum-based diesel. diesel.
BIODIESEL
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ADVANTAGESADVANTAGES DISADVANTAGESDISADVANTAGES
Domestically produced Domestically produced from non-petroleum, from non-petroleum, renewable resources.renewable resources. Can be used in most Can be used in most diesel engines, especially diesel engines, especially newer ones.newer ones. Less air pollutants (other Less air pollutants (other than nitrogen oxides) and than nitrogen oxides) and greenhouse gases.greenhouse gases. BiodegradableBiodegradable Non-toxicNon-toxic
Safer to handleSafer to handle
Use of blends above B5 Use of blends above B5 not yet warranties by auto not yet warranties by auto makersmakersLower fuel economy and Lower fuel economy and power (10% lower for B100, power (10% lower for B100, 2% for B20) 2% for B20) Currently more expensive Currently more expensive More nitrogen oxide More nitrogen oxide emissions emissions B100 generally not suitable B100 generally not suitable for use in low temperatures for use in low temperatures Concerns about B100's Concerns about B100's impact on engine durability impact on engine durability
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Note: You should never fuel your Note: You should never fuel your vehicle with clean or used grease or vehicle with clean or used grease or vegetable oil that has not been vegetable oil that has not been converted to biodiesel. It will damage converted to biodiesel. It will damage your engine.your engine.
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