Has anyone used butterbiz 1% hydrogenated? Are there any problems with using this i.e waxing up?
Cheers

as in cold weather, I mean is it like palm oil?

I am trying to process butterbiz but I can`t get it to seperate unless I heat it up to about 55C Also I am geting low yield (70%) and a lot of soap. I used 3.7 gm/l of NaOH and 20% methanol. I have made lots of biodiesel in the last few months from WVO and sunflower oil but not had this problem before. Any one else had the same issue?

quote:

Originally posted by Ucunchoo:
Has anyone used butterbiz 1% hydrogenated? Are there any problems with using this i.e waxing up?
Cheers

quote:

Originally posted by black bull:
I am trying to process butterbiz but I can`t get it to seperate unless I heat it up to about 55C Also I am geting low yield (70%) and a lot of soap. I used 3.7 gm/l of NaOH and 20% methanol. I have made lots of biodiesel in the last few months from WVO and sunflower oil but not had this problem before. Any one else had the same issue?

3.7g/l is way too low. It should be (5g + titration)/litre. However, that shouldnt give you soap. I would guess youve got an incomplete reaction and the 'soap' is in fact unreacted or partially reacted fat. It would have looked fine in the past because the wvo you used was liquid whether it was properly processed or not.

quote:

Originally posted by Jehu:

quote:

Originally posted by black bull:
I am trying to process butterbiz but I can`t get it to seperate unless I heat it up to about 55C Also I am geting low yield (70%) and a lot of soap. I used 3.7 gm/l of NaOH and 20% methanol. I have made lots of biodiesel in the last few months from WVO and sunflower oil but not had this problem before. Any one else had the same issue?

3.7g/l is way too low. It should be (5g + titration)/litre. However, that shouldnt give you soap. I would guess youve got an incomplete reaction and the 'soap' is in fact unreacted or partially reacted fat. It would have looked fine in the past because the wvo you used was liquid whether it was properly processed or not.

I should have pointed out this butter biz is new oil not wvo

OK, thanks. In that case I'm pretty sure you should be using 5g/litre, which is the recommended dose. I still think that is the root of your problem. I would try two Dr Pepper trials, at 3.7g/l and 5g/l with that stuff, to decide for sure.

quote:

Originally posted by Jehu:
OK, thanks. In that case I'm pretty sure you should be using 5g/litre, which is the recommended dose. I still think that is the root of your problem. I would try two Dr Pepper trials, at 3.7g/l and 5g/l with that stuff, to decide for sure.

I seem to have got the hang of it at last.
Heat till the butterbiz is clear brown with no yellow streaks(about 80c)giving a light stir from time to time. allow to cool slightly then add the sodium methoxide using 4gms/l and 20% methanol. Mix fairly slowly. I used a slow paddle plus a low volume pump. Yeild has risen to about 90% and washing is easy.

Perhaps not my place to say as i have only been at this a few months but wouldn't adding methoxide to a mixture "slightly cooler" than 80c cerate an explosion risk due to methanol boiling at 65c?

Please seek guidance from more experienced members before proceeding further with this line, and keep me informed with a post or pm with your future results,

Good luck - don't blow yourself up!

quote:

(about 80c)giving a light stir from time to time. allow to cool slightly then add the sodium methoxide using 4gms/l

That is hotter than needed (dangerously if you add the meth at any more than below 65) and still less caustic than needed. 5gm per litre is the proper ammount for base no matter what you have read in sources based on the Tickel book.

55 or 60 deg C should be plenty if you give it all time to be at an even temp with no cooler bits (the yellow streaks). Oil can be slow to spread heat evenly in a batch. Be patient and it will get there. Stirring or circulating while you heat will help.

I agree with Jehu that what you thought was soap was in fact unreacted or partially reacted fat. I am familiar with butter biz and it makes fine clear diesel despite the slight salt content.

I have processed 1000 l+ of this stuff now (from ebay) and it can make good bio with a good yield. But it is difficult to handle and process, not recommended for a beginner!

Although I bought it as ‘new oil’ it was contaminated with water and debris when it arrived so I had to filter it and dewater it. Although the oil was ‘new’ it titrated at between 1.7 and 3.7 from the top to the bottom of the IBC.

I would describe the oil as semi liquid, semi rancid and very unpleasant with the consistency of yogurt at +25 C and mayonnaise at 10 C. The oil won’t flow or pump through more than a few feet of 1” pipe, and will set in the pipe if it’s too cold. It will block even a course sieve. I ended up using a heater in the IBC and a ladle to load my processor.

I use the GL process at 60C for 2 hours with 22% methanol and 5g + titration per litre. 5% pre wash.
You must drain the glycerol ASAP (after 1 hour settling) while it is still hot or it will set like candle wax in your pipes. The glycerol contains all sorts of crap and it will set to jelly in 24-48 hours even with the recovered methanol added.

After condensing the methanol I transfer the bio to my settling tank. The bio is still very grey at this point, however it settles quickly and clears to leave beautiful light coloured crystal clear bio that looks virgin olive oil. The top half of the 200l tank can be used after a week or so. I pass it through a 0.5u filter at the tank exit but it is very clear in the tank. I know others who have had problems washing the bio due to the high particulate levels, but this is not a problem with GL.

Yield was close to 98% at the top of the IBC and 90% at the bottom. 3/27 was good.

I will not use this oil again as it is just too much work and is too unpleasant to handle compared to liquid oils.