[Biofuel] Condensers

Dear All- Does anyone out there have a creative off the shelf idea for a total condenser (methanol recovery)? I'm thinking about building an air-cooled type, but I was wondering if anyone had a better solution? Also, where are some other sources to get methanol? I have a local racing fuel

[Biofuel] Operational Query for y'all

-$250 price range have Noryl(r) impellers. The question: can I get away with a plastic impeller for long period (say about 5 years) or will it get attacked by the methoxide/methanol solution. Thanks! - Matt Matt Yarrison Dept. of Chemical Engineering Rice University 6100 S. Main Street AL B-218

[Biofuel] Anyone find a source for used centrifuges?

is, the only ones I can seem to find are either for use in cars or are much more than we need. Does anyone out there have a source for a centrifuge that can process about 5-10 gpm? Cheers! - Matt Yarrison ___ Biofuel mailing list Biofuel@sustainablelists.org

Re: [Biofuel] Biofuel Digest, Vol 6, Issue 95 Quickie question on titration

Dear All- I have a really quick question here: The Phenopthalein solution I use is a 1% in IPA (reagent grade from Sigma-Aldrich). This should be appropriate for titrating WVO with a 1 normal (1g/l) solution of NaOH in DI water, with the comversion being 1mL of NaOH added corresponding to