glycerin

[Dirtcheap]

can i just pour it in an open container and let the meth evaporate to compost or what??.. i dont need to recapture it as i get mine for free .. ive got to much just sitting around.. thanks

[StorminNorman]

That will work, although it is slow. It helps if you can let it set in the sun in a dark (or clear) vessel to warm up and let natural convection turn it over. I have never tried it, as I recover, but I have read it takes up to three weeks to get rid of the methanol. Logically a 55 gallon drum is going to be slower than a pan. The shallower the container the better.

Norman

[airfooter]

Heat expedites the process, but adds significant danger - for obvious reasons.

My bio-d partner has recently mastered soap making! Best soap I've ever used, seriously (from degreaser to shampoo!). We are working on a still to recover the methanol, but he is currently using turkey fryer to heat the glycerin and consequently boil off the methanol.

I've heard the commercial biodiesel folks make as much $$ off their glycerin as they do biodiesel... seems a shame to 'throw it away'. It can also be used by concrete people as form release - most use diesel, so there's a huge savings for them (and $$ for you). Just a couple thoughts!