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| Caterham Member Since: 06 Nov 2008 Location: Birmingham Posts: 6346   
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don't laugh too loud
I've been making bio-diesel since circa 2007 however the last two years production has dropped to zero(ish). I've been fair too busy with work and basically lost all my contacts for oil collection etc. so all the gear I bought has come to the end of it's useful life so far as I'm concerned. I spent many thousands buying it and with some home renovations on the horizon it really needs to go. it's not worth a fat lot but at the same time it's too good to give away. It really needs to find a home with someone that likes to tinker and has plenty of room to put it out of the way in readiness for making those batches of carbon neutral fuel. I've never run the defender on it 100% but it's certainly had quite a few litres go through to numerous peoples horror. If you or you know anyone that might be interested please drop me a note.  |
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22nd Apr 2020 7:54pm |
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| Caterham Member Since: 06 Nov 2008 Location: Birmingham Posts: 6346
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partly
I started making it circa 2007. for some while ran a 10 ltrs per fill up in the 110. the wife has a VW 1.9 which clearly states on the filler 'no bio'. than that for ages on 100% bio with no ill effect even in the winter. the one winter it got particularly cold and I got jittery and put some regular fuel in but I'm not sure it had any effect. my dad was running 50/50 in his disco 3. father in law has run his 2ltr VW on it and serveral other things incl while I had various lr products while mine was in for warranty - FFRR, freelander sport, etc.
basically take waste cooking oil. let it settle as load as you can for the water to settle to bottom along with a load of other baddies. take good oil off the top and filter down to 25 microns. heat oil to circa 60C and take titration test to determine the quantity of methanol and potassium to be blended in. leave to settle for as long as possible ie 1-7 days - drain glycerol settled at base. wash bio fuel in a number of ways to removed as much methanol as possible. polish fuel to remove remain methanol and water filtering to 10 microns
and fill in your books for the tax man. |
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23rd Apr 2020 4:10pm |
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| Rosco Member Since: 03 Dec 2010 Location: Burntwood Posts: 1872  
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Sounds like a fair bit of work.
For every litre you put in, how much are you getting as an end product? 2007 - Stornoway Grey 90 XS SW - Gone 2002 - Black Discovery II - Gone 2014 - Montalcino Red 110 XS SW |
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23rd Apr 2020 4:56pm |
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| Caterham Member Since: 06 Nov 2008 Location: Birmingham Posts: 6346
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it is a fair bit of work but when you're doing 400 ltrs at a time it's not a lot of time per ltr.
I've never really measured it but in terms of filtered oil in and bio out but there's not much difference. |
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23rd Apr 2020 5:09pm |
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| rizga1 Member Since: 14 Apr 2020 Location: QZ Posts: 28 
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I used to be right into bio production until a few years ago and might I add that after a bit of practice, the process is easy and does not take up much of your time.
Although each batch takes a long time in terms of elapsed time, so maybe start on Monday morning and finish some days later, the actual amount of 'your' time it takes ends up being very little once you are up to speed with it. Like anything I guess, practice makes perfect. |
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23rd Apr 2020 5:21pm |
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| Caterham Member Since: 06 Nov 2008 Location: Birmingham Posts: 6346
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exactly.
and even less time per ltr the larger the batch. how did you go about washing / polishing the fuel? |
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23rd Apr 2020 5:38pm |
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