by Biodiesel Community | Oct 14, 2017 | Uncategorized
Introduction A 5% water prewash is a way to give your biodiesel a preliminary wash after the reaction is finished but BEFORE draining off the glycerol byproduct. Performing a 5% water prewash stops the transesterification reaction dead in its tracks by drawing much of...
by Biodiesel Community | Oct 14, 2017 | Uncategorized
All restaurant oil is not created equal, and there’s quite a bit of extraneous ‘stuff’ in it- water gets into hot oil from the cooking process, and the oil itself breaks down after a lot of use and becomes ‘free fatty acid’, which...
by Biodiesel Community | Oct 14, 2017 | Uncategorized
Source: Biodiesel Homebrew Guide: Everything you need to know to make quality alternative diesel fuel from waste restaurant fryer oil The standard titration for soap in oil, unwashed biodiesel, or glycerol, uses hydrochloric acid solution as a reagent, bromophenol...
by Biodiesel Community | Oct 14, 2017 | Uncategorized
If you make biodiesel using vegetable oil that is contaminated with water, you can have problems. And the more water in the oil, the more problems you’ll have. Glop problems, washing/emulsion problems, reduced yield and so on. So here’s a way to actually test your oil...
by Biodiesel Community | Oct 14, 2017 | Uncategorized
Introduction: Over the past year, there’s been a quiet revolution in biodiesel homebrewing quality control. On July 7, 2006 a new test was introduced, with experiments to support it, to the infopop forum community – the Jan Warnquist or 3/27 test. This...
by Biodiesel Community | Oct 14, 2017 | Uncategorized
Our goal is simple: Help you learn how to make biodiesel. This site is written by people from around the world who make biodiesel. It’s our way of sharing with you what we have learned. Take a look around and enjoy! –The Collaborative Biodiesel Tutorial...
by Biodiesel Community | Oct 14, 2017 | Uncategorized
INTRODUCTION: After washing your biodiesel, it will usually have a slightly hazy or cloudy appearance to it, this is because there are micro droplets of water still in suspension in your just washed fuel, biodiesel has an ability to keep this water in suspension and...
by Biodiesel Community | Oct 14, 2017 | Uncategorized
When making our own biodiesel out of waste vegetable oil (WVO), we need to know how much to adjust the amount of NaOH/KOH required to neutralize the free fatty acids (FFAs) it contains. We determine the percentage of FFAs in a given sample of oil by using an indicator...
by Biodiesel Community | Oct 14, 2017 | Uncategorized
Enter Input here Oil How Much Oil will you use? LitersGallons Methanol use this much methanol for each unit of oil % Lye the base amount of catalyst needed g/L Titration Enter the value you determined by titration g/L The Recipe Metric US Oil Liters...
by Biodiesel Community | Oct 14, 2017 | Uncategorized
In the past homebrewers used an electric mixer of some kind to mix together methanol and lye. The drawbacks were complexity, and the obvious safety issues around static, sparks, and fumes. But if you just add lye to methanol at the same time that you start heating...
