Brian
Is this still the same oil you were asking about three months ago?
From: Brian Schneider [EMAIL PROTECTED]
Date: Mon, 5 May 2008 10:35:43 -0400
To: sustainablelorgbiofuel@sustainablelists.org
Subject: [Biofuel] Titration
Hi All,
Have a quick question about titration.
I have obtained some waste oil that seems to be titrating at 12 -
15mL. I have done this numerous times and come up with about the
same results. ...
You said then that you'd find a new source of better oil, but early
this month you asked the same question again:
From: Brian Schneider [EMAIL PROTECTED]
Date: Wed, 2 Jul 2008 11:03:28 -0400
To: sustainablelorgbiofuel@sustainablelists.org
Subject: [Biofuel] Waste Oil Problems
Hi all,
I have a source of waste oil that will provide about 20 gal of oil
per week. They are using soy oil and the virgin form of it produces
very good fuel. They say that they change the oil once per week.
The problem is that the used oil titrates at 12 to 15 mL. ...
And now again, on 24 July, you ask just the same question:
I have titrated some sample oil I have received and it titrates high
like 12 - 14 ml. So I thought I would do the bracket method and see
if that would give any different results so I would know if my
titration is off.
What gives? Are these different sources of oil or still the same source?
And what stage are you at, exactly? Are you still a novice? It sure
sounds like it since you're so unsure of your titration. There's no
problem with titration.
Can you make one-litre test batches with new oil that reliably pass
the quality tests?
Wash test
http://journeytoforever.org/biodiesel_vehicle.html#washtst
Methanol test
http://journeytoforever.org/biodiesel_vehicle.html#methtest
Can you make one-litre test batches with used oil that reliably pass
the quality tests?
You say you keep checking JtF but you can't find the answer, but
I'm wondering how much notice you take of the answers you can find.
For instance, it says NOTE: Novices should avoid poor-quality oil
like this for their first test-batches with used oil. Find a source
of oil that titrates at 2 to 2.5 ml of 0.1% NaOH solution, not more
than 3 ml. Leave overcooked oils with high titration levels for later
when you have more experience. Again, make small one-litre test
batches before attempting larger batches of WVO.
It says it again and again: avoid high-FFA oils, especially if you're a novice.
So why, at this stage, after less than four months' experience, are
you STILL trying to use oil that titrates at 12-14 ml?
And why can't you do a more accurate titration than that? The higher
the FFA level, the more accurate the measurements need to be, it says
that too. It also says you'd be lucky to get more than 50% production
out of oil like that, unless you deacidify it or, better, use the
acid-base method, but it's obvious you're not ready for the two-stage
processes.
So what gives?
Best
Keith
I have titrated some sample oil I have received and it titrates high
like 12 - 14 ml. So I thought I would do the bracket method and see
if that would give any different results so I would know if my
titration is off.
I did the bracket test just like the directions on the website said
to do from 5 to 7.5 g/mL. All of the samples looked almost exactly
the same except for the 7.5 which turned to a solid after the first
shake.
Does anyone have any clues as to what is going on? Because I thought
when it turned solid that indicated too much lye. So I tried a
sample batch with 6.5 g/mL. It turned out weird. There are three
layers, a kinda semi-solid layer, a dark liquid layer, and a light/
clear layer at the top. But there are also little clumps of white
looking junk floating around everywhere in all layers almost like a
crystal forming.
I could really use some help on figuring out what is going on and get
your all expert opinions.
Thanks
Brian Schneider
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