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Biodiesel => Chemistry and process => Topic started by: dgs on July 07, 2016, 10:18:07 PM

Title: Trinity 97% (min) methanol tested for water
Post by: dgs on July 07, 2016, 10:18:07 PM

I have just tested the Trinity 97% min methanol for water and it was 9000ppm (0.9%)

I tested the 99.85 TS a while ago and it was 2600ppm (0.26%)

Trinity have kindly sent me a sample of their 99.97% which I will test in the next few days.

Title: Re: Trinity 97% (min) methanol tested for water
Post by: neisel on July 08, 2016, 01:29:08 PM

Is 99.1% good enough for our BD purposes?

Title: Re: Trinity 97% (min) methanol tested for water
Post by: dgs on July 08, 2016, 02:48:06 PM

Yes neisel, it seems to be. Jules (andTash) has completed a process with it and it was OK.

If using ASM it would make no difference at all, if using KOH then maybe on an average 150 litre batch the conversion would be something like 2 to 3 litres worse, but with this stuff at 22.5ppl + carraige then the poorer conversion wouldn't really matter.

Title: Re: Trinity 97% (min) methanol tested for water
Post by: julesandtash on July 08, 2016, 09:30:50 PM

Just finished drying my first full batch with this stuff and all went fine.
The really sweet solventy smell carried right through to the finished biodiesel which surprised me but other than that all was fine

Title: Re: Trinity 97% (min) methanol tested for water
Post by: neisel on July 08, 2016, 10:43:26 PM

What's the difference in price?

Title: Re: Trinity 97% (min) methanol tested for water
Post by: Glycer-rides on July 08, 2016, 10:48:02 PM

I'm just interested to know what this 'whiffy' percentage is that carries over from the distillation.

We/ I,  assume that it's all raw glyc KOH feedstock...so, what's the 'extra'??

Title: Re: Trinity 97% (min) methanol tested for water
Post by: dgs on July 08, 2016, 11:50:49 PM

I think the crude feedstock won't just be glycerol from the bio process. There will be other types of chemical plants that return contaminated methanol for distillation.

As said the Trinity 99.85 TS methanol has a much higher smell of solvents than the 97% min.

When using the above the solvent smell is not noticeable after my drying cycle (bubbling for 7 hours mostly at 65degs) But even after water washing the bio still has a strong solvent smell.

Based on a 1000 litre IBC without carraige the 97% is 22.5 ppl The 99.85 TS is 34.5 ppl and the 99.97% is 35.9 ppl.

Title: Re: Trinity 97% (min) methanol tested for water
Post by: dgs on July 10, 2016, 09:59:28 AM

Quote from: dgs on July 07, 2016, 10:18:07 PM

I have just tested the Trinity 97% min methanol for water and it was 9000ppm (0.9%)

I tested the 99.85 TS a while ago and it was 2600ppm (0.26%)

Trinity have kindly sent me a sample of their 99.97% which I will test in the next few days.

I have now done the water test on the 99.97% and it was 115ppm.