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Old 27 June 2007, 18:59   #21
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using WVO to either make bio, or having another tank to switch at start and end of journey is the best option, as it's recycling already used oil, hence having no additional negative environmental impacts etc etc.

but, for those short on time and space (me as I am always abroad in the week), it's not an option, althought the filtering WVO might be if that's all that is required, but I recall it has to be cleaned as well, requiring chemicals, in which case might as well go the whole hog and produce biodiesel.

I'm sure the best ROI is going down the biodiesel production route, especially if you club together with a couple of mates and buy that 2k piece of equipment. Only have a normal tank, no switching etc.costs recouped in 6 months or so depending on mileage, feel good factor and low cost fuel for ages to come (unless they abandon fuel tax and tax per mile of driving instead, but that's another story).
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Old 27 June 2007, 19:13   #22
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My Method!

Go to the pub & get your 20l drum of used oil...
put it through a teram or paper filter...
Heat the oil to 55c...
Perform your Titration test to determine the acidity of the oil...
Lets say you have 10l of filtered veg oil warming up....
You need 20% methanol (2l) & 3.5grams caustic soda per litre + your test result, say 1g per litre...
Therefore for 10l oil mix the 2l methanol & 4.5g Caustic together....
This becomes "methoxide" sounds good eh! ....
Put your methoxide into the oil and mix it throughly....
Leave in your conical vessel (Reactor) overnight....
in the morning open the drain at the bottom of the reactor & drain out the thick clycerin....
what's left is Bio! Just needs washing.....
Mix with loads of water, say 20l, allow water to seperate & drain off from the bottom....
Repeat wash as desired.. untill water is clear....
Now what is left is "Methyl Esters" or Bio Diesel!!!
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Old 27 June 2007, 19:26   #23
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ok now im just totaly confused, i think il wait a) as i dont have a diesel inboard to use it in yet b) I cant drive and c) it took me a year to get 3k and im not doing that again it hurt alot not being able to buy anything for nearly a year and maybe il strike oil in my garden you never know
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Old 27 June 2007, 19:27   #24
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How much is methanol?
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Old 27 June 2007, 19:31   #25
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Obviously the example given is not quite how I do it... I use the molecular sieve "Amberlite" beads system not water & 10l is for ease understanding...
God only knows how much fuel I've produced in the last 12 months, it's measured in drums of Methanol 9000l.
It is practicable for you to buy an "off the peg" reactor for around 700 which will produce 40l of fuel easily. You could put it in the corner of the garage & spend 2 hours in total to make the fuel.... YES why aren't more people doing it!
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Old 27 June 2007, 19:35   #26
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Obviously the example given is not quite how I do it... I use the molecular sieve "Amberlite" beads system not water & 10l is for ease understanding...
God only knows how much fuel I've produced in the last 12 months, it's measured in drums of Methanol 9000l.
It is practicable for you to buy an "off the peg" reactor for around 700 which will produce 40l of fuel easily. You could put it in the corner of the garage & spend 2 hours in total to make the fuel.... YES why aren't more people doing it!
Because its very confusing
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Old 27 June 2007, 19:36   #27
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The price of Methanol fluctuates between 60 to 90 for a 205l drum....
we bought 2 drums a fortnight ago at 78 each.
The cost of setting up the plant depends on how resorseful you are...
you could make a small system for 50 or spend a few grand making a system that could process 400l per day!
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Old 27 June 2007, 19:41   #28
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Hi Frothy, yep there's so much on tinternet & everyone knows someone who's having a go.... I think I'll put some details on here & photo's etc so you can all decide for yourselves. Not tonight... must get some kip & 1 last lge port
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Old 27 June 2007, 19:59   #29
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Quote:
Originally Posted by Oogs View Post
The price of Methanol fluctuates between 60 to 90 for a 205l drum....
we bought 2 drums a fortnight ago at 78 each.
The cost of setting up the plant depends on how resorseful you are...
you could make a small system for 50
That's pretty much what I was thinking of-knocking something up out of a couple of 10 gallon drums.
The only time I use the car for any distance is towing the rib and then it costs nearly as much as the fuel for the boat-but Sixy does 25k a year in hers just commuting.
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Old 27 June 2007, 22:04   #30
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Quote:
Originally Posted by Oogs View Post
The price of Methanol fluctuates between 60 to 90 for a 205l drum....
we bought 2 drums a fortnight ago at 78 each.
The cost of setting up the plant depends on how resorseful you are...
you could make a small system for 50 or spend a few grand making a system that could process 400l per day!
As I said the main problem is getting the waste oil. I was very interested in doing this and researched it to the nth degree - even down to using ofm and ultrasonics.

Maybe it's different in your area but most people I approached are already selling oil to a waste oil collector. apparently these people are similar to scarp metal dealers and can make life quite unpleasant for people moving onto "their" patch.

About the only readily available supplies I could find are from local chippies but they all use the solid block stuff - have you tried this and does it cause many extra probs???
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