bio diesel
- Thread starter mark
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SIXFOOTSTEVE
Well-known member
Sounds interesting Mark ,I can feel a google coming on.
blackvelvet
Well-known member
is this on the level about the diesel?
mark
Well-known member
indeedy. Visited someone last week with there own home brew reactor, makes 400 litres a day from either used or new cooking oil
new cooking oil can be bought in bulk, delivered to your door for 18p a litre, other ingredients, sodium hydroxide and isopropyl alcohol (surgical spirit) but you don\'t need much of the others
if you want you can pay the duty which at EU rates rather than UK rates, (which you can pay to brussels and stick one up gordon brown - so cheaper) is 21p a litre on top. the end product is chemically identical to commercial biodeiesel bought on the forecourt!
http://journeytoforever.org/biodiesel_make.html is a good strating point
equipmnt needed, couple of barrels, heating element and a small motor to mix the stuff up
my mates barn is being fitted out at the mo!
apart from the price its is infinitly more environmentally friendly the fossil diesel
the CO2 output can be viewed as nil, cos all the carbon it puts out was already absorbed by the plants that made the oil, no sulphue, little nitrous oxides and the like
if it all goes to plan, me an 2 \'colleagues\' are gonna do a 200 gallon run, once a month!
only down side is, in the winter it has a tendency to gel at low tempreratures
new cooking oil can be bought in bulk, delivered to your door for 18p a litre, other ingredients, sodium hydroxide and isopropyl alcohol (surgical spirit) but you don\'t need much of the others
if you want you can pay the duty which at EU rates rather than UK rates, (which you can pay to brussels and stick one up gordon brown - so cheaper) is 21p a litre on top. the end product is chemically identical to commercial biodeiesel bought on the forecourt!
http://journeytoforever.org/biodiesel_make.html is a good strating point
equipmnt needed, couple of barrels, heating element and a small motor to mix the stuff up
my mates barn is being fitted out at the mo!
apart from the price its is infinitly more environmentally friendly the fossil diesel
the CO2 output can be viewed as nil, cos all the carbon it puts out was already absorbed by the plants that made the oil, no sulphue, little nitrous oxides and the like
if it all goes to plan, me an 2 \'colleagues\' are gonna do a 200 gallon run, once a month!
only down side is, in the winter it has a tendency to gel at low tempreratures
mark
Well-known member
apparently not, watched the whole process last week. just a big barrel with cooking oil, small amount of caustic soda/alcohol being mixed by a cordless drill clamped on top of the barrel, couple of hours later, 4\' layer of glycerin/soap on the bottom of the barrel, rest pure \'esters\' - biodiesel to the rest of us sat on top of it, drain it off and filter it and thats that
filled the discovery tank with it and drove back from cheshire!
filled the discovery tank with it and drove back from cheshire!
SIXFOOTSTEVE
Well-known member
Wow I\'m impressed Mark ,what can you do about it gellifying in the winter ...maybe just buy it from the garage ! it\'s only a few months after all.
[Edited on 23/5/2006 by SIXFOOTSTEVE]
[Edited on 23/5/2006 by SIXFOOTSTEVE]
mark
Well-known member
sure you\'re not confusing biodeisel with some of the other cooking oil cocktails???
been checking all over the place, including the relevant BSI standards for fossil versus bio and made correctly they are identical, with the exception that the bio version has a lot less nasties left over in it??
according to the EU all fossil diesel already has 2.5% bio diesel in it and that is to rise to 5.75% in 2008
from everything I\'ve looked at and read thus far, if your home brew is properly \'esterified\' it become structurally identical to commercial biodiesel, which in turn is chemically identical to pure fossil diesel.
checked with landrover and the discovery is ok to run on either
been checking all over the place, including the relevant BSI standards for fossil versus bio and made correctly they are identical, with the exception that the bio version has a lot less nasties left over in it??
according to the EU all fossil diesel already has 2.5% bio diesel in it and that is to rise to 5.75% in 2008
from everything I\'ve looked at and read thus far, if your home brew is properly \'esterified\' it become structurally identical to commercial biodiesel, which in turn is chemically identical to pure fossil diesel.
checked with landrover and the discovery is ok to run on either
mark
Well-known member
Everything I\'ve looked at says the opposite, proper biodeisel, with all the fats etc taken out (esterified), has the same viscosity as normal diesel and same burn characteristics. there are loads of home made potions out there based on cooking oils that are thicker and coke up your injectors though.
the end product is chemically identical to commercial biodiesel, and needs no engine mods. Asda, incedentally, now run there fleet on biodiesel. some they buy, the rest they make themselves from their own waste cooking oils
alfred deisel, who invented the diesel engine, designed it to run peanut oil (till the french shot him for telling the british how to build deisel engines in ships)
guess we\'ll wait and see, gonna run this tank full through (500miles) and pull an injector to see what it looks like.
as it stands, it is starting in the mornings when cold exactly the same as before, and runs the same. no sign off the engine getting hotter or excess noise, in fact its a bit quieter than before
the end product is chemically identical to commercial biodiesel, and needs no engine mods. Asda, incedentally, now run there fleet on biodiesel. some they buy, the rest they make themselves from their own waste cooking oils
alfred deisel, who invented the diesel engine, designed it to run peanut oil (till the french shot him for telling the british how to build deisel engines in ships)
guess we\'ll wait and see, gonna run this tank full through (500miles) and pull an injector to see what it looks like.
as it stands, it is starting in the mornings when cold exactly the same as before, and runs the same. no sign off the engine getting hotter or excess noise, in fact its a bit quieter than before
blackvelvet
Well-known member
impressive stuff, I see you\'ve been doing your homework on it. I thought it would bugger up the engine using is long term but I\'m no expert 
mark
Well-known member
I\'ve read one or 2 stories about older engines getting clogged up, mainly as they are\'nt as efficient as modern direct injection diesels, but that aside, I reckon there\'s a bit of scaremongering going on as well, from looking on hundreds of sites and forums, I\'ve found 2 cases where people using bio claimed there pumps packed in, but who\'s to say that they wouldn\'t of packed in anyway, things don\'t last for ever!
there\'s a couple of sites with lists of makes/models and the mileage done, some of which are pretty impressive - 300k in a nissan pajero
wierd thing is with landrover, in some models they say uls diesel. bio or even gas oil (red) is fine, red diesel being the dirtiest thing going, yet all of a suddent they change tack and drop the bio, and thats for the exact same engine from one year to the next
I do 50-60k miles a year, bio would save me over 4 grand a year which is 8 pumps ! or a brand new engine every year.
the local garage out here tells everyone not to buy diesle in morrsions, based on the fact he\'s had to fix 2 diesel cars in the last year with the same fault, that bought their fuel in morrisons. go figure
I\'ll be giving it a go. currently have 160k on the discovery, if the fuel pump/injectors start playing up in 20k miles time, will that be because of the bio, or the previous 160k on fossil diesel??
one interesting test I tried was to soak a rag in normal diesel and put a match to it and soak a rag in bio and do the same. far more soot/smoke off the fossil than the bio
there\'s a couple of sites with lists of makes/models and the mileage done, some of which are pretty impressive - 300k in a nissan pajero
wierd thing is with landrover, in some models they say uls diesel. bio or even gas oil (red) is fine, red diesel being the dirtiest thing going, yet all of a suddent they change tack and drop the bio, and thats for the exact same engine from one year to the next
I do 50-60k miles a year, bio would save me over 4 grand a year which is 8 pumps ! or a brand new engine every year.
the local garage out here tells everyone not to buy diesle in morrsions, based on the fact he\'s had to fix 2 diesel cars in the last year with the same fault, that bought their fuel in morrisons. go figure
I\'ll be giving it a go. currently have 160k on the discovery, if the fuel pump/injectors start playing up in 20k miles time, will that be because of the bio, or the previous 160k on fossil diesel??
one interesting test I tried was to soak a rag in normal diesel and put a match to it and soak a rag in bio and do the same. far more soot/smoke off the fossil than the bio
jimmy
Well-known member
Mark before ya do your 20,000 miles mate take ya head off give it a de-coke and also get ya injectors sonically cleaned and your pump overhauled,then start ya test mate,i do a lot of work on taxis and the ones i get more than others are the ones run on bio.If ya want to save monay on running costs why dont you switch to gas conversion
Charlie_Thompson
Well-known member
Drink white lightening, stay in the house and get the bus somewhere once a week. Much cheaper although still a strain on the valves. As for it\'s effects on the injector .... :casstet:
mark
Well-known member
I know there\'s a lot of taxis in the toon are running what they call bio-diesel but is really just cooking oil and addititves
so does that mean that if you buy commercial bio diesel on the forecourt its gonna nack yer motor as well??
can\'t wait to find out what happens.
I\'m gonna whip the injectors out tommorrow and give em a once over and take some close up pics of them, then give it a few thousand miles and do it again
even if it does turn out problematic, I can still run me central heating a hell of a lot cheaper if I use the bio in that
so does that mean that if you buy commercial bio diesel on the forecourt its gonna nack yer motor as well??
can\'t wait to find out what happens.
I\'m gonna whip the injectors out tommorrow and give em a once over and take some close up pics of them, then give it a few thousand miles and do it again
even if it does turn out problematic, I can still run me central heating a hell of a lot cheaper if I use the bio in that
