Points to start and research:
(From the Woollatt book but remember published 1985).
Bleaching and the treatment of Distillates with ion-exchange resins to
upgrade quality :
initial bleaching with 0.2-2.0% activated carbon
ion-exchange resins from Rohm and Haas instead of or after a.c.
[Macrorecticular resins (which have large discrete pores capable of removing
relatively large molecular mass compounds from the liquid) are normally best
for this duty which demands the removal of organic, rather than ionic,
impurities ]. Sound ideal in this instance to me.
eg: Amberlite 200 or 200C - strong cation resin .
Amberlite IRA-93 - weak base anion resin.
Amberlite IRA-900 - strong base anion resin
Deodorization, using heat and open steam, under vacuum, following treatment
often necessary.
Production of refined grades of glycerine without distillation:
Ion exclusion: process developed by Dow Chemical Co and reviewed in paper by
D'Souza (1979) using a bed of granular resin such as Dowex WX8 allowed
partial purification which could then be completed by ion-exchange.
Ion-exchange process sounds okay but regeneration using hydrochloric or
sulphuric acids for the cation resins and caustic soda for the anion resin
dosnt sound really feasible or realistic for a small plant. Would also not
be economic I believe.
Lever Bros installed a plant in L.A. designed by Illinois Water Treatment Co
in 1951 but would seriously doubt this was still in operation. Dosnt sound
too promising. Distillation still seems to be the preferred method.
Reverse Osmosis also dosnt sound too promising although there could have
been developments in the last 15 years.
Refs: Sourirajan and Kimura (1967), review Sourirajan and Matsuura (1982).
B.r., David
----- Original Message -----
From: Biofuels <[EMAIL PROTECTED]>
To: <biofuel@yahoogroups.com>
Sent: Monday, May 07, 2001 7:51 AM
Subject: Re: [biofuel] Re: Enzymes
> This is the famous Fox/Ginosar process - but they won't tell anybody what
> the permanent catalyst is!
> I do know it involves polymers, but that is all.
Biofuel at Journey to Forever:
http://journeytoforever.org/biofuel.html
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