|English: Home Products About SMAB Rape-ol for diesel fuel (SVO) Burners Video Links Retail dealers Address Site map|
Make easy biodiesel in your farm or in the garage.
Self made biodiesel processor out of doors in summer.
It is very safety to Works out of doors with methanol and KOH
litres of raw rape oil in the top tank .
Mix 22% Methanol 110 litres with 4.5 kg
KOH in a bottle so no lumps in it.
About 6 minuters or more.
Mix methanol and KOH into the 500 litres of raw rape oil from TäbyPressen. into the top tank
Stir it in 2 hours with the pump..
Wait 2 days. After already 6 hours you can see the glycerol in the bottom.
Now you have glycerol in the bottom and take away the lower tank.
Change the tank to empty tank
Mix the oil with water 200 litres
with the pump and
stir it in half an hour.
Wait 1 day
Now you have water and soap in the lower tank .
Change the tank to new empty tank. Stir it with the pump the oil with water once more 200 litres.and stir it in half an hour.
Wait 1 day
now you have water and soap in the lower tank but not so much soap as before.
If you wish once more washing.
Wait 1 day.
Take away the lower tank
Now you have a good biodiesel in the top
tank. Now is the biodiesel very clear you can read a text of news paper
through the oil . If you store the biodiesel in a month in an open tank the methanol and KOH evaporate away.
Test of good biodiesel
Viscosity the same as diesel oil.
To test viscosities in a self made meter from a used 5-56 spray can.
Room temp of oil about +16 to 17 Dg C
1 Take a used
400 ml 5-56 spray can and saw
off the topp.
2 Drill a 2 mm hole in the bottom.
3 Put the spray can over a sheet of glass.
4 Fill 250 ml of Biodiesel in the 5-56 spray can.
Usual diesel oil is the same about 2
minutes and 7 sec.
Biodiesel it takes 2 minutes and 7 sec to close the spray can the same.
50/50 raw rape oil / diesel about 2 minutes and 7 sec.
Raw rape oil
+16DgC about 5 minutes.
It is too thick to run in an engine.
Fryer oil +16 Dg C to thick for test.
You can run the diesel engine with many differents way. Test of viscosity:
1 Mix raw rape-oil/ diesel oil
50/50 the same viscosity
as diesel oil. Test: 2 minutes 7 sec.
Buy cooking oil in a department store and mix with diesel. or make raw rape oil in a
2 Warm up raw rape-oil from
oilpress to +50 to +70 Dg C
the same viscosity
as diesel oil with converter
Test: 2 minutes 7 sec. http://www.rapsolja.se/drive_your_diesel.htm
3 Make Bodiesel from
oilpress in a tank the same
viscosity as diesel oil
Test 2 minutes 7 sec. http://www.rapsolja.se/biodiesel-information-fran-skeppsta-maskin-ab.htm
4 Fryer oil +60 Dg C
same viscosity as biodiesel, dieseloil, and 50/50 raw oil /diesel oil.
Test 2 minutes 15 sec.
5 Water approx same viscosity as diesel oil
Wash-test with unwashed biodiesel -- left, after a violent 10-second shaking; right, biodiesel and water separated cleanly within minutes.
This is the most useful all-round test, and it's very simple: Put 150 ml of
unwashed biodiesel (settled for 12 hours or more, with the glycerine layer
removed) in a half-litre glass jar. Add 150 ml of water, screw the lid on tight
and shake it up and down violently for 10 seconds or more. Then let it settle.
The biodiesel should separate from the water in half an hour or less, with amber
biodiesel on top and milky water below. This is quality fuel, a completed
product with minimal contaminants. Wash it and then use it with confidence.
But if it turns into something that looks like mayonaisse (emulsifies) and won't separate, or if it only separates very slowly, with a thick white layer sandwiched between water and biodiesel, it's not quality fuel and your process needs improvement. Either you've used too much catalyst and made soap (better titration), or a poor conversion has left you with mono- and diglycerides (try more methanol, better agitation, longer processing time, better temperature control), or both.
Whichever, you're headed for washing problems. Super-gentle washing techniques might avoid the problems, but you'll still be left with poor-quality fuel laced with contaminants that are bad for the engine and the fuel system.
If you have an emulsion any thicker than the normal "paper thin" interface layer between oil and water, the batch needs to be retreated. retreat as with virgin oil, but using only 10% methanol and the standard 3.5 g of lye per litre of oil.
Even bubble-washing is quite gentle, and it's worth repeating the test with some washed fuel -- it should separate from the water cleanly within a few minutes.
How the process works