Here's the archive link: http://archive.nnytech.net/index.php?view=13265&list=BIOFUEL
Note where it says in the header: "More on this subject". If you click on it you'll be given links to the other posts in that thread. It's not essential to drain off the glycerine in the second-stage, nor to remove the alcohol as Todd did. Best Keith >This weekend I was fighting a flu and consequently was too doped up on >NyQuil-type medications Friday night to make up a sample of step 1 of the >2-stage acid-base process to use in our biodiesel class saturday morning. >So we never covered the second step of acid-base two-stage, no doubt >disappointing everyone. > > I'm finding that people who are otherwise completely competent figuring >out single-stage concepts on their own, get really excited about seeing >two-stage acid-base done 'live' - they've been unwilling to try it as it >seems a little intimidating on paper. I think that more importantly, (due >to the additional heating required), that the equipment for doing liter >batches isn't as obvious as just using a blender for single-stage liter >experiments. As people have pointed out here before, figuring out equipment >for small experimental batches of this process would be valuable. I think a >lot more people would be willing to try it if they could use some simple >equipment for their first go at it. > >So I wanted to re-post this bit by Todd Swearingen from last spring- it's >directions on making a 1-liter batch of acid-base two-stage with a couple >of variations. I want to post it again as I think it's really useful for >people to have step-by step directions on doing this with really small >batches. How about a version of something like this (1-liter two-stage, >whether with this equipment or some other setup) on Journey to forever, Keith? > >I don't exactly agree with his using a gas stove as his heater for this, I >use an electric hotplate for my own 10-liter test batches and I think that >staying away from flames is necessary for safety. We talked here recently >about using some other heating gear- I think a crockpot slow-cooker might >be useful (especially if used as a water bath or double boiler apparatus >like the one outlined below) and I also think that other immersion heaters >(with different agitation equipment) - immersion heaters for aquariums, for >instance), might work well for making up small-batch test apparatus. > >Mark > >Here's the message in the archive (sorry I just couldn't find it in the >nnytech archive, so here's the Yahell version) > >http://groups.yahoo.com/group/biofuel/message/13115 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/
