Transcript Bio From Virgin Canola Oil Bio from Waste Soybean Oil Things to remember • Heat oil to about 130-140 F.

Bio From Virgin Canola Oil
Bio from Waste Soybean Oil
Things to remember
• Heat oil to about 130-140 F. You can use
a hot plate or microwave (about 2 ½
minutes.
• Wear eye protection and gloves.
• Making biodiesel requires patience to let
the mixtures set and separate out.
If a students is too aggressive is shaking the biodiesel in
the washing process, and emulsion could occur. Notice on
top, the biodiesel is beginning to separate. Reheating the
mixture (after draining water) can break the emulsion.
Time Line for Making Biodiesel in a
Lab Setting
• Have students collect two 2 liter coke jugs
• Wash out the jugs and allow to dry – no
water in the jugs!
• Day one: Heat up a liter of so of the oil
and have each student titrate the oil. You
can also do this in pairs, depending on
class size. Complete the titration
worksheet.
• Have on had a few mason jars or mayonnaise
jars (glass jars with sealable lids)
• Have students pour 225 ml of methanol into the
jar.
• Measure correct amount of NaOH on triple beam
scales. Add the NaOH and swirl gently (heat is
generated as this is a exothermic reaction- heythis correlates with chemistry frameworks!!!)
These activities may take one or two days
depending on class size.
Start a New Day Here
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Have students heat their oil to 130 f.
Use a funnel and add the methoxide to the jug.
Shake vigorously for about 30 seconds.
Shake vigorously again every 10 minutes or so.
During the last 15 minutes of class, have the
students add 50 ml of warm water to the mixture.
Shake with medium force and store the jug in a
safe place so the it can settle until the next day.
• DO NOT FORGET TO USE EYE PROTECTION
AND GLOVES
Next Day
• Have students drain off glycerin layer.
• Add about 300 ml of hot water to the jug.
• Shake medium for about 30 seconds and
let settle for about thirty minutes.
• Drain the soapy water.
• Repeat the steps above.
• When the water remains clear after
shaking, all soap has been removed.
Next Day
• Use a fish tank bubbler to bubble dry
(remove remaining suspended water) the
biodiesel.
• The biodiesel can also be placed outside
in the sunlight or in the greenhouse to dry.
• The hazy appearance of the biodiesel at
this point is due to tiny droplets of water.
• http://www.biodieselcommunity.org/drying
washedbiodiesel/
All the information you need to set
this up can be found at
www.biodieselcommunity.org
Appleseed Processor Setup
This setup is referred to as an Appleseed Processor. It is
simply a water heater with a circulating exterior pump. The
drain at the bottom feeds the intake of the pump. The liquid is
then pumped back to the top and re-circulated.
For educational purposes, you can connect an amp meter
and have the students calculate the time it takes to heat up
the oil. Using W= VA, they can calculate the amount of
Kwh needed to heat the oil, then calculate the cost of
electricity. A good differentiation project for GT kids.
35 Gallon Washing/Drying Tank
A water hose can be connected to drain off water or a short
hose can be connected to drain biodiesel to a 5 gallon
bucket. You can also connect a transfer pump. The clear
tubing is used to determine the end of water or glycerine
and the beginning of biodiesel.
Other Related Information
• A bushel of soybeans produces appr. 1.4 gallons
of oil
• If a person averaged using 40 gallons of diesel
fuel per month, it would take 14 acres to grow
the beans necessary to produce the oil (25
bushel yld, 342 bushels)
• My family of 4 uses about 1700 kwh of electricity
a month. Burning biodiesel in a generator to
produce that amount would take 1632
gallons/year (46 acres of 25 bu. beans, 1165
bu). Data shows that a diesel powered
generator uses.08 gallons per kwh