Keith, I think part of the confusion was that my email that started a rather long thread had two separate topics. I had no idea that it would launch such a discussion, if I had I would have separated the posts.
Andy On Sat, 15 Jan 2005 04:32:59 +0900, Keith Addison <[EMAIL PROTECTED]> wrote: > >Keith, > > > >I haven't found anything to expect an enzyme in the Biox reaction. > > I don't think Ken or I were talking about the Biox reaction. Ken cut > your para on Biox and doubts using isopropanol in a base-catalyzed > reaction will work, I agreed and posted a link to information on > using isopropanol with enzymes. That seems perfectly clear. > > > I > >think it is simply using MTBE or similar to create a single phase so > >the reaction takes place faster. I am trying to get copies of the > >articles from the 90's when this technique was discussed a lot more. > >Do you have any of the articles on using cosolvents? > > This was covered in my other post to you, see next response. > > Keith > > > >Andy > > > > > >On Sat, 15 Jan 2005 02:07:51 +0900, Keith Addison > ><[EMAIL PROTECTED]> wrote: > > > >on 1/14/05 6:05 AM, Andrew Cunningham at [EMAIL PROTECTED] wrote: > > > > > > > > > I am helping a friend setup a reactor and he has 4 55 gallon drums of > > > > > IPA. He has little time so it is slow going, but I will let you know > > > > > how it goes. Since the it has the higher boiling point we will run at > > > > > a higher temperatures. > > > > > > > > > > > >Are you talking about using isopropanol in a base-catalyzed > > > >transesterification? From what I know about the behavior of > > > >ethanol compared to methanol, I'd be surprised if it worked > > > >at all. I think VERY little isopropoxide would be produced, > > > >and possibly KOH wouldn't even be soluble (this would be easy > > > >to check, of course, I'm just being an armchair commentator > > > >here :-)). > > > > > > > >Even if you could get the alkoxide to form, I bet the glycerol > > > >would be too soluble to ever drop out. Have you ever actually > > > >made biodiesel this way in small quantities? -K > > > > > > I agree with you Ken, I don't think it works. Several people who know > > > what they're at have told me they'd tried it without any success. > > > > > > AFAIK it's an enzyme-catalysed process - ie, it's lab stuff, not > > > (yet) for the real world. > > > > > > See: > > > http://infoarchive.net/sgroup/BIOFUEL/28089/ > > > Date: 2003-09-11 > > > From: Keith Addison > > > Subject: Re: R: [biofuel] Butanol v Methanol > > > > > > (Foglia's patent on branched alkyl esters) > > > > > > Best wishes > > > > > > Keith > > _______________________________________________ > Biofuel mailing list > [EMAIL PROTECTED] > http://wwia.org/mailman/listinfo.cgi/biofuel > > Biofuel at Journey to Forever: > http://journeytoforever.org/biofuel.html > > Biofuel archives at Infoarchive.net (searchable): > http://infoarchive.net/sgroup/biofuel/ > _______________________________________________ Biofuel mailing list [EMAIL PROTECTED] http://wwia.org/mailman/listinfo.cgi/biofuel Biofuel at Journey to Forever: http://journeytoforever.org/biofuel.html Biofuel archives at Infoarchive.net (searchable): http://infoarchive.net/sgroup/biofuel/
