I believe quicklime is the same thing we natural builder types use for lime plaster. For plastering, there is a cheap or free source of it in some areas: waste slag from acetylene plants. They often are happy to give it away, and have a mountain of the stuff. That's the good news. the bad news is that what';s perfect for lime plaster is wet- lime putty or 'slaked lime' and that's what the waste product from acetylene mostly is. But apparently some of the 7-foot high mountain of lime putty my co-worker recently 'mined' at an acetylene plant was a crust of dried out hard crud. Would this free resource be useful for dessicating ethanol, or am I wrong on my definitions? girl Mark
At 07:04 PM 8/27/02 +0000, you wrote: >From: Ken Provost <[EMAIL PROTECTED]> >Subject: Re: molecular sieves for dehydrating ethanol > >Keith writes: > > > > >Quicklime or 3A, I don't think we need any other answers. > > >Actually, I'm looking again at the whole azeotropic distillation >thing. The problem with quicklime is GETTING it, of course, >and the fact that it's just another nonrenewable resource unless >you plan on setting up your own lime kiln to regenerate it. >Same with zeolite -- and solar's no good for drying 'em unless >you use a good-sized dish. > >Breaking the ethanol-water azeotrope with some gasoline >(which would have to be completely recovered) might be doable >in a solar still like the one I'm already using to recover methanol. >Gotta think some more about how to do the whole process in >a completely passive (no pumps) way........-K > > >_ ------------------------ Yahoo! Groups Sponsor ---------------------~--> 4 DVDs Free +s&p Join Now http://us.click.yahoo.com/pt6YBB/NXiEAA/MVfIAA/FGYolB/TM ---------------------------------------------------------------------~-> Biofuel at Journey to Forever: http://journeytoforever.org/biofuel.html Biofuels list archives: http://archive.nnytech.net/ Please do NOT send Unsubscribe messages to the list address. To unsubscribe, send an email to: [EMAIL PROTECTED] Your use of Yahoo! Groups is subject to http://docs.yahoo.com/info/terms/
