Originally Posted by smokey
I do not have a diesel truck yet but I am going to buy one after the first of the year b/c of tax reasons. I have figured out how to build a setup but do not know the steps to the process. I really am also interested in the price of lye and methanol, and how much to use per/gallon. A lot of websites have taught me alot (including this one) but each has different steps to the process. The step I get confused the most is the titration. I really need some help on this process and how you do it. Any input will help and remember I am new here so take it easy on me.
Methanol had a price jump late last summer. Expect to pay about $0.75 to $1.00 a gallon to produce fuel. (lot better than $2.50 for diesel)
As for titrating, Here you go,
Step1) Make Titration Solution
Measure out 1 Liter of distilled water.
Measure out 10 grams of Lye
Mix the two together.
Draw 100ml from the solution.
Throw the other 900ml down the drain.
Measure out a new batch of distilled water. 900ml this time.
Add the 100ml solution to the 900ml of distilled water and shake well.
(Always save your titration solution in a dark bottle with the cap on)
Step2)Titration (assuming you've checked for water)
Measure out 10ml of Isopropyl Alcohol (rubbing alcohol) of at least 90% purity.
Add 1ml of your oil to the 10ml of alcohol and swirl mix it.
Add 5 drops of phenolphthaline
Now suck up some of your titration solution you made in step1 and start adding that in measured 1ml or .5ml steps until the alcohol solution starts to turn a slight pink. Swirl the solution the entire time and keep close track of how many ml you have added.
Once it turns slightly pink, stop adding titration solution and keep swirling for 20 seconds. If the pink goes away, add more titration solution.
Once it stays slightly pink, the number of ml of titration solution you added is your titration number.
If you are using NaOH, add your titration number to 5 or 5.5
If you are usning KOH, add your titration number to 8 or 8.5
So if your titration number was 6, you would use 14 or 14.5 grams of KOH per liter of oil.
Of course, you should always use 22% or more methanol.
Hows that? Whew! that was a lot of typing.