Hey Manolo!
Nice site, very complete. Your bio looks a bit reddish, though. Have
you got a complete reaction? Or is this just a flash-photography
effect?
(lately I made lots of this amber-reddish looking bio and found out
that this was due to bad methanol with impurities and water in it - I
--- In [EMAIL PROTECTED], [EMAIL PROTECTED] wrote:
Aleks
The electric heating line and how you installed it look good
and should last but. What would you say about the fuel tank
and how to keep it warm enough to prevent gelling here
in Minnesota at -30 deg F.
Piep
Heated garage
snip
Can you give me some idea of viscosity of dino-fuel at particular
temperatures.
Yeah. Viscosity is measured at 20 degC for biodiesel, because with
heat it's viscosity falls close to that of dino. Dino's viscosity
changes very little with temperature - compared to biodiesel.
I assume
snip
Thanks for the advice. Will give your suggestions a go and
see
what happens. We are reasonably confident that we are getting the
water out. We have made a very good heating system that boils the
oil all day on about 20 litres of old sump oil. Gets the temp up
to
100degC
As for the copper assembly, it appealed to me for the simplicity. I
don't have one - cannot because I got stainless steel fuel lines and
am affraid of electro corrosion. So I had me made 6 meters of
electric heating line (like the ones that are used to heat reptile
tanks) with a specific
Allan,
Animal fat contains a LOT OF WATER. It's very difficult to settle the
water out. Generally speaking it would require a week to 10 days at
55 degC to settle. Heat drying of natural fats is not very advisable
because it tends to raise the acid count. Therefore partially dried
animal fat
--- In [EMAIL PROTECTED], [EMAIL PROTECTED] wrote:
And just how am I to measure out ~5 centistokes? What are
centistrokes
anyway, a bug disease?
Hey no need to be rude, man! You asked the question, here are the
answers.
Kinematic viscosity is measured in Stokes. You can not measure it
at
--- In [EMAIL PROTECTED], Tom Kissick [EMAIL PROTECTED] wrote:
It is getting cold in northern Alberta,Is there a process to
winterize biodiesel
Fuel line and filter heaters are a permanent solution, doable in DIY
techniques.
http://www.planet-interkom.de/mic.stern/durchlauferhitzer.htm
It's
--- In [EMAIL PROTECTED], Tom Kissick [EMAIL PROTECTED] wrote:
Is there any additives currently available that can be mixed to
drop the
cloud point Aleks
Huh, there is:
- small amounts of regular gasoline (~5%), but this is not good for
the engine
- in Europe there is a thing we call motor
Well, there are several possible ways to mend the sooty flame.
1. biodiesel will not burn clean unless the flame is tremenduously
hot. My friends found out that with burner main nozzles smaller than
0.75 mm biodiesel soots up the boiler. So find out your nozzle
diameter, just to see where you
Martin,
you have used too much lye in your reaction. Neutralize before
bubbling. All is not lost, you can separate the soapy mixture by
adding dilute acid (phosphoric , acetic, citric, 10%) until you see
separation. Top off esters and rewash, several times if neccessary.
Cheers, Aleks
Ian,
2Material fully reacts but no glycerol separates - I have tried
adding water after 24 hours but there seems to be a very high water
tolerance leading to a very inefficient split of ester to
glycerol/water.
Material doesn't react. The only sign of a transesterification
reaction is
--- In [EMAIL PROTECTED], Thor Skov [EMAIL PROTECTED] wrote:
I read that VW has a 1.3liter engine that gets 100mpg.
I'll find the reference if you're interested. This
car is not, of course, sold in the US.
Thor,
It is not only because of the engine. We're talking an all aluminum
body, Mg
---
snip
heh, heh, heh! Good one, Alan!
Aleks
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Paul,
snip
Very hard to dissolve NaOH, would KOH dissolve better. Had to
almost boil
the isopropyl before NaOH would dissolve. On cooling the mixture
solidified.
Tried using conc aqueous solution of NaOH but as it was poured into
isopropanol it the NaOH precipitated out.
Yepp. That's the
Hi Paul !
Can you tell me what advantages BD made using higher alcohols (eg
isopropanol) would have over BD made using methanol or ethanol?
Longer chain alcohols seem to raise the winter properties of
biodiesel: Ethyl esters are better than methyl, propyl even better,
butyl esters would be
Stu!
snip
One product, a filter, can
be easily modified where one side is an air input and the output is
thousands of small tubes. These tubes are about 9 mil wide, barely
larger
than a human hair. When air is forced through these while immersed
in water
you get a rush of very small
--- In [EMAIL PROTECTED], Mike Brownstone [EMAIL PROTECTED] wrote:
Thanks Alex.
Do you think that backsplitting could be one of the problems? Or
just excess
lye ( I used 3.5g/l)
Mike,
check your scale, and let the glyc settle properly. Remaining glyc is
very caustic and can cause fuel
--- In [EMAIL PROTECTED], L Miller [EMAIL PROTECTED] wrote:
Aleks:
Are you buying or brewing the isopropol? How does that all work?
L
Isopropyl alcohol is a standard medical disinfectant and glass
degreaser. I can't make it cheaper than the store sells it.
Aleks
Hi Mike
I'm struggling with the washing of the biodiesel. I get a low
return (50%)
and a lot of creamy mayonnaise.
Do you get rid of the water before the reaction? Perhaps you use too
much lye. How much do you use?
Yield should be ~ 100% even by an inexperienced biofueler. I usually
get
Ed,
Any updates on costs from the earlier lipase threads? Are these
getting
cheaper over time and are they about to get a lot cheaper with
greater use
in industry?
Enzymes are already used very wastly (cheese, washing powder, ... it
figures thousands of tons per year). We have the same
I don't really think this is true. Using 200ml methanol per liter
of WVO is
about a 60% molar excess (that is, 60% more methanol than is
actually
consumed in the transesterification). The excess helps to shift
equilibrium
in the desired direction, and I think we can expect something like
--- In [EMAIL PROTECTED], Ian [EMAIL PROTECTED] wrote:
Hi All
Anybody know anything about Hydrogenated vegetable fat.
I'm led to believe this is unusable.
It might explain failures.
Ian
Ian,
I'm forced to use almost only hydro veg fat (I'm saving the oil to
make winter ethyl/isopropyl
--- In [EMAIL PROTECTED], ian [EMAIL PROTECTED] wrote:
Ian,
a friend and I have tried it (boil off). It's no use, takes a lot of
energy since the mass to heat up is tremenduous and real gain is very
thin. At methanol BP we got zip. Not a drop. 10 deg C higher
temperature gave a few drops. It
--- In [EMAIL PROTECTED], Biofuels [EMAIL PROTECTED] wrote:
Optimum rpm is 700, but it is not critical
Fault lies elsewhere - temperature, time mixing, etc.
Um, water in oil, water in acid, water in lye, carbonated lye,
incorrect measuring, sloppy weighing ? There is a troubleshooting
chapter
--- In [EMAIL PROTECTED], eric almanzan [EMAIL PROTECTED] wrote:
Eric:
You need in terms of vessels:
1. a large reaction vessel with some sort of stirring. A bottom
spigot is usefull but not necessary. You can top off your ester.
2. a smaller vessel (25% min of larger) for methoxide preparation
Hi James,
I've just completed my first 30 L of transesterified WVO. (Not yet
washed) It's golden brown, feels like petrodiesel and looks very
consistent. I wonder if there is any simple test I can execute at
this stage to confirm its properties as a diesel fuel.
Saludos - James
There is
--- In [EMAIL PROTECTED], steve spence [EMAIL PROTECTED] wrote:
hey guys, ethanol is totally welcome here. we tend to get really
intense on
biodiesel at times, but if you are doing ethanol work (and many of
you are)
please, speak up.
Steve Spence
Yeah, and even some us die-hard
Hello,
As for the drip feed burners, glycerine is not a good fuel. I tried
it for several weeks and the gum deposits are just too much. Next
thing I made was some reading, and so far noone seems to be able to
make glyc burn deposit free with sensible priced equipment.
In Austria the glyc is
--- In [EMAIL PROTECTED], ian [EMAIL PROTECTED] wrote:
Hi all.
Ive just put a schematic together for a tank system using the
Foolproof (sulphuric acid) method, with methanol recovery.
Could I have the circuit checked out by some of your good selves.
Hey folks!
I've been studying biotechnology for the past two weeks, now I'm
back, my head bigger still. My neck hurts already.
I've learned several things concerning lipases and their use:
1. not every type of microbial lipase is good for every alc combined
with every fat. Reactions are quite
--- In [EMAIL PROTECTED], David Teal [EMAIL PROTECTED] wrote:
Still banging on about quality control:
If the Aladdin test is NBG, then how about making a micro-batch from
supposedly finished biod (reacted, washed dried). Possibly use
the
methoxide mixer as a reactor vessel, otherwise an
--- In [EMAIL PROTECTED], Michael Aereboe [EMAIL PROTECTED] wrote:
thanks for the advise aleks
I made an 80 litre batch using used veg oil (acid content ~2.15 mg
eQ KOH/g - good burned very used oil) 25% v/v methanol and using 1.4%
Potassium hydroxide as catalyst. Stirred like hell with an
--- In [EMAIL PROTECTED], Michael Aereboe [EMAIL PROTECTED] wrote:
the group:how good is our home brew biodiesel?
Oh, it's very good.
when taking variation of reaction temperature and mixing geometry
(speed, homogenizer or pre-homogeniser blending) into account,
variability in the %
--- In [EMAIL PROTECTED], Biofuels [EMAIL PROTECTED] wrote:
Austrians make mainly from used oil.
They use ONORM C1 191 spec. There is no mention of glycerol
content.
Germans make mainly from fresh oil.
They use DIN E 51606 spec. 0.02% free glycerin is permitted.
Glycerol is soluble in
--- In [EMAIL PROTECTED], Alan S. Petrillo [EMAIL PROTECTED] wrote:
Yepp. It has been done before. But now there are methods to
recover
cheaply the overpriced lipase, and this certainly is a way to look
at.
Do you have any links to these methods? In any event, if the
demand for
--- In [EMAIL PROTECTED], [EMAIL PROTECTED] wrote:
could you please write this phonetically? Ljubljana.
Hi Skaar,
I'll try : lyublyana. How's that? In Slovene, the J letter is
pronounced like the Y in yes - for instance.
Cheers, Aleks
Biofuel at Journey to Forever:
Hi Keith! :-)!
Hi Alan, Aleks, Warren
Does this shed any light?
In allowing fats and oils to react with a lower alcohol in the
presence of a catalyst to produce a lower alkyl ester of fatty
acids
by subjecting the triglyceride contained in the fats and oils to
exchange reaction, a
--- In [EMAIL PROTECTED], Keith Addison [EMAIL PROTECTED] wrote:
Hi Aleks!
How goes? Sorry not to keep in touch, been immersed (still
immersed).
Oh, if it doesn't go by itself, we push it a little.
Well now, we journalists go to prison rather than reveal our
sources... :-) I'll tell you
OK, and isopropanol is not so toxic like methanol, and not so
government regulated like ethanol. Sounds promising. Where have you
seen lipase recovery methods described?
Um, not described in detail. I think, this will have to be figured
out by experiment. I think that at this point, who has
A small quantity of porcine lipase can be purchased from
Worthington
http://www.worthington-biochem/com/priceList/L/Lipase.html for
US$21. There is also some good info at
http://www.worthington-biochem/manual/L/PL.html. Many references
are provided, which I have not yet read. Do you
Thank you for the information.
I am an adult who just want to make the world a better
place to live in. I hope you understand.
There are two not quite secret chemicals to make it happen :
sodium lye and methanol. The reason to not make it at home would
propbably be the methoxide's high pH
--- In [EMAIL PROTECTED], Aleksander lt;kac [EMAIL PROTECTED] wrote:
Thank you for the information.
I am an adult who just want to make the world a better
place to live in. I hope you understand.
There are two not quite secret chemicals to make it happen :
sodium lye and methanol
Hi Roger,
Would'nt it make sense that the PH of your wash water would be
greater than 7, if you are washing (removing) the alkali? This in
turn should decrease the alkali of my fuel.
Nope. You should put some sort of acid in your wash water, diluted
phosphoric or plain vinegar. Your wash
Hi Roger,
--- In [EMAIL PROTECTED], Roger Leischner [EMAIL PROTECTED] wrote:
I just completed my first succesful wash of 120 liters of
Biodiesel. I added acid (vinegar) to the first water, and followed
the Idaho technique. I measured the PH of the wash water, as I
drained it off. The first
what i wanna know is if the sulphuric acid in a battery is strong
enough
to make sawdust alcool. could be an easy way to get enough for
regular
biodiesel production.
It's only 50% or so, AFAIK, needs to be 98%. I think I asked this
before - is there any safe way of raising the proof of
--- In [EMAIL PROTECTED], Roger Leischner [EMAIL PROTECTED] wrote:
Aleks,
Thank-you for your info. on washing and ph measurment. Could you
please describe your method of PH measurment for biodiesel, including
the type of probe. Also if possible, I'd like your comments on
exactly how it
An electric arc is generally a plasma channel through air (or any
other gas). It takes an enormous amount of energy to ionize the
medium through which you would like to pass current. If arcs were
free, we would still have electric arc lighting and arc welding would
cost nothing. The thing is,
--- In [EMAIL PROTECTED], satish rehpade [EMAIL PROTECTED] wrote:
Dear Aleks,
Thanks for your suggetions. But still I want to clear
the point,
How Why my biodiesel will damage the high pressure pump
injector system.
Read Up thread.
I want to know you that my biodiesel have pH
Our aim is to set up a portable unit with a 500 gal
stainless steel reaction vessel after a small 20
gal. test unit is run for a few months to get the
process down and enough usable fuel to test. We plan
on using a small diesel generator to test run the fuel
and later power the 500 gal.
--- In [EMAIL PROTECTED], Biofuels [EMAIL PROTECTED] wrote:
Satish
Washing also removes excess methanol and any waxes and gums left in
the
biodiesel.
You may choose not to wash your biodiesel before use - OK, I have
no problem
with that - it is your engine, not mine!
I totally agree with
Aleks replied:
Yes, but if you do not leave at least 5% (of the volume of
processed
oil) of methanol in the glycerine, it will gel, and you won't be
able
to drain it.
But why drain it as a fluid, if this means losing value? It is
easy to
decant or syphon oil from above the gelled
Hello,
First which Two step method? Base-base or acid-base?
You got alakline glyc there. Glyc is not solid at room
temp, but with all this lye floating arroun, it's gel like. The base-
base two stage glyc burned, because it was fluid. It was fluid
because of lots of methanol in it. Once
I read this on 'real' paper.
http://www.sciam.com/2000/0200issue/0200scicit3.html
Biofuel at Journey to Forever:
http://journeytoforever.org/biofuel.html
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--- In [EMAIL PROTECTED], biofuels [EMAIL PROTECTED] wrote:
Wash it well, using slightly (1 cupful vinegar, citric acid, etc)
acidified
water - it will separate after an hour or two
Terry
And in your next batch, as someone said, 'religiously remove water
before attempting reaction.
Cheers,
Hi Eric!
Because of energy prices in NJ, I want to produce small batches of
Biodiesel. I like the New Foolproof (Aleks Kac's) method that uses
sulfuric acid, but have no idea where to get the chemicals with the
needed
purity, even though NJ is a big producer of industrial chemicals.
Can
This one seems nice : http://www.sciencealliance.com/
Attention all Ethyl E fans, KOH's on special offer this week.
Cheers, Aleks
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--- In [EMAIL PROTECTED], anton and federica [EMAIL PROTECTED] wrote:
hmmm... does that mean i can keep it in a container for 4 hours?
that is all
i need in order to heat the oil up. It would be at room temperature.
thanks, anton
Hey Anton,
4 hours in a sealed container is fine. Remember,
Hi Terry;
--- In [EMAIL PROTECTED], biofuels [EMAIL PROTECTED] wrote:
Aquarium shop - wide band 5 to 10 pH tester - works with oil
Cost around $10 and lasts for months!
Um, what exactly would 'wide band pH' mean (on a scale with an upper
and lower limit? (0 to 14))? Or does it rather spell
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