Author Topic: glyc washed chinese take away oil (Read 4639 times)

alifreddy · « **on:** September 30, 2013, 08:49:05 AM »

titrated at 1 before now titrating at 0.5. I read on biopowered about glyc washing helps free up methanol and bio in glycerol. added 20 litres to 60 litres of oil with whites in bottom came back a lower titration.

seems a lot of water in the glycerol I put this in a bin for composting as don't want to use it for washing again

julianf · « **Reply #1 on:** September 30, 2013, 09:47:04 AM »

is there a question in there, or are you just telling us what youve been up to?

alifreddy · « **Reply #2 on:** September 30, 2013, 10:12:37 AM »

no am clear what to do. just wondering should I use koh I left lid open or my my new koh in bag

alifreddy · « **Reply #3 on:** September 30, 2013, 10:13:55 AM »

its only gone hard on top formed a crust in a bucket but unsure how old it is came with proccesor

julianf · « **Reply #4 on:** September 30, 2013, 11:39:00 AM »

i think you should make things easier for yourself and use the new stuff

you can save the old for another time if you dont want to throw it out

willbuild · « **Reply #5 on:** September 30, 2013, 12:52:37 PM »

def, use the new koh

alifreddy · « **Reply #6 on:** September 30, 2013, 01:00:01 PM »

thanks just won some rapeseed oil on ebay brand new if anyones interested. Good winter feedstock

willbuild · « **Reply #7 on:** September 30, 2013, 01:29:52 PM »

so you will need 12 lts meth and 60x 7grs= 420grs koh base + tit which you quote as 0.5 that seems very low or do yo mean 5?
If you are doing 2 stage 9ltrs of meth and just the base koh 420grs, then after the reaction stage do a 27/3 test and see how much fall out.
remove the gylc and add the other 3lts of meth + koh according to fallout

willbuild · « **Reply #8 on:** September 30, 2013, 01:34:42 PM »

mix for 1 hour then do another 27/3 if you do not get a clear pass mix for another 30 min then test again, before adding any more meth or koh.
will be online most of afternoon so don't hesitated to give any updates. good luck

alifreddy · « **Reply #9 on:** September 30, 2013, 07:30:15 PM »

the oil was titrating at 1 ml of sodium solution before glyc washing and 0.5 after 2 titrations

alifreddy · « **Reply #10 on:** October 03, 2013, 10:27:27 AM »

got my titration right went for 0.75 after titrating a sample of oil which I drew from middle of jar with a pipette in the end got 10 litres of glycerol and bright clear biodiesel

julianf · « **Reply #11 on:** October 03, 2013, 11:17:47 AM »

Are you going to test for conversion percentage now?

willbuild · « **Reply #12 on:** October 03, 2013, 02:30:39 PM »

seems like there is still oil to convert, you should have more than 10 litres of glyc (if you started with 60 ltrs of oil), now you need to do a 27/3 test (as julian says above) and see how much fall out there is. then add the 3 litres of meth and the Kohl(amount shown by amount of fall out) and mix for another hour.

alifreddy · « **Reply #13 on:** October 04, 2013, 12:12:59 AM »

I only used 11 litres of methanol

willbuild · « **Reply #14 on:** October 04, 2013, 08:27:28 AM »

ok so you can use 2ltrs of meth to mix in the koh.
how much fall out was there in the 27/3 test?
if the liquid when you do the test don't remain crystal clear through out the test then there is still unconverted oil in it.

Biopowered - vegetable oil and biodiesel forum

Biodiesel

Chemistry and process

glyc washed chinese take away oil