Hi all, first post but an avid reader.

This is a question regarding titration numbers in oil from a new supplier. I consistantly get a 9ml or higher number when titrating this oil. It is a combination of fryer (broasted chicken) and (donut crisco). I heat it before testing and have tested it many times to be sure.

My question is this. Since the next batch I make will only be my second and I've already had to deal with a major emulsion the first go round (my fault) I'm wondering what I will need to watch for in trying to process this oil? Would I be wise to go a bit higher on my methoxide mix? Perhaps a point or two? I really don't want to loose the use of this oil as it will be a rather large supply and very close to home.

Can you give me some advice or your experiences with this sort of WVO?

Thank you all and big thanks for this forum being here,
Skip aka behoof

G'day behoof;

This "oil" will be very cold weather sensitive, being a fully hydrogenated oi mixed with tallows.
Unless you live near or in the tropics it may be more trouble than it's worth.
I used to use a partly hydrogenated oil and it made fine fuel but geled at 7C.
The stuff I have been using for the last year or so is a "liquid hydrogenated vegetable oil" and also makes good fuel and is a little more cold weather tolerant, -7C.
However I am working on a volume of used liquid canola wchich tests have shown to be good to -16C ambient, -7C liquid temp.

If it were my situation I would look for another source. In the long run it is considerably less hastle.

Welcome

I been told by a "Bioneer" to stay away from doughnut oil as it has a high level of sugar.

I don't know exactly what the negative effects of sugar are, but I turned down a bakery because of this warning.

Maybe you could get them to seperate the stocks.

quote:

Originally posted by Legal Eagle:
G'day behoof;

This "oil" will be very cold weather sensitive, being a fully hydrogenated oi mixed with tallows.
Unless you live near or in the tropics it may be more trouble than it's worth.
I used to use a partly hydrogenated oil and it made fine fuel but geled at 7C.
The stuff I have been using for the last year or so is a "liquid hydrogenated vegetable oil" and also makes good fuel and is a little more cold weather tolerant, -7C.
However I am working on a volume of used liquid canola wchich tests have shown to be good to -16C ambient, -7C liquid temp.

If it were my situation I would look for another source. In the long run it is considerably less hastle.

Thanks for the reply, you're probably right. I'm still gonna hope for someone to give some info that will help me to use this effectively. I really figured it would be a problem.
I'm gonna see if I can give them the equipment to use two disposal drums and hopefully keep it seperate? Yeah right, a kid making $5/hr is really gonna care which drum it goes in, right <smile>!
Skip aka behoof

quote:

Originally posted by TW Scannell:
Welcome

I been told by a "Bioneer" to stay away from doughnut oil as it has a high level of sugar.

I don't know exactly what the negative effects of sugar are, but I turned down a bakery because of this warning.

Maybe you could get them to seperate the stocks.

Thank you for the reply and I agree on the seperating the oils... I'll see if it's a workable solution?

96 Ford F250 7.3L TurboDiesel

I've been following a thread on pre-washing the wvo with water, baking soda, and sometimes flour (sounds weird, I know), so, for sugar contamination, atleast its water soluble so maybe this water pre-washing would fix it right up in that regard.

Search for "reducing FFA without 2 stage process", or something like that, to read about it.

quote:

Originally posted by Ryan P.:
I've been following a thread on pre-washing the wvo with water, baking soda, and sometimes flour (sounds weird, I know), so, for sugar contamination, atleast its water soluble so maybe this water pre-washing would fix it right up in that regard.

Search for "reducing FFA without 2 stage process", or something like that, to read about it.

Ryan, I just came in from heating 100litres of this WVO to 210F for 4hrs w/5gal of water and I added 8oz of baking soda and had it mixing all the while.

It bubbled pretty neat for a bit and formed an interesting layer (scum is what it looks like) on the top. I started to remove the top layer by just scraping it off, not to bad to do really. Now I'm letting it seperate the rest of the way, oh yeah, and I took off most of the water that I had mixed with it.

Just for giggles I titrated the hot oil 3 times and got a reading of 6-7mL each time. Which is considerably better than before.

But, like has been mentioned here, I don't know what this stuff might be like in a Michigan Winter? I have one restaurant that I collect and it titrates at 0-1 always... but I don't get a lot from them. Oh well, I'll keep trying.

Thanks again for the reply, obviously, great minds think alike. I'll update as I progress with this tomorrow.

Any other thoughts on this will be appreciated.

Skip aka behoof

96 Ford F250 7.3L TurboDiesel

quote:

Originally posted by Ryan P.:
I've been following a thread on pre-washing the wvo with water, baking soda, and sometimes flour (sounds weird, I know), so, for sugar contamination, atleast its water soluble so maybe this water pre-washing would fix it right up in that regard.

Search for "reducing FFA without 2 stage process", or something like that, to read about it.

Ryan, I forgot to put in the link I had read on using baking soda and so on... here it is >>>> http://biodiesel.infopop.cc/eve/forums/a/tpc/f/159605551/m/6091024051