[biofuel] Ethyl esters from alcohol? I need a chemist!!!

2003-10-14 Thread shawstafari

I was looking at the ATF's formulas for denatured ethanol and have a 
question about ethyl esters.  Under formula no. 32 (which is 100 
gallons of ethanol, and 5 gallons of ethyl ether as denaturant) it 
states that it is authorized for use as a raw material for 
production of 'other ethyl esters.'  

Does this mean that one may use this formula to make ethyl esters 
using the formula and ethanol based products only, or is it making 
ethyl esters in conjunction with vegetable oils?

Peace through Grease,
Dave Shaw
Santa Cruz, CA



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Re: [biofuel] Ethyl esters from alcohol? I need a chemist!!!

2003-10-14 Thread Ken Provost

on 10/13/03 5:50 PM, shawstafari at [EMAIL PROTECTED] wrote:

 I was looking at the ATF's formulas for
 denatured ethanol and have a question
 about ethyl esters.  Under formula no. 32
 (which is 100 gallons of ethanol, and 5
 gallons of ethyl ether as denaturant) it
 states that it is authorized for use as
 a raw material for  production of 'other
 ethyl esters.'  
 
 Does this mean that one may use this
 formula to make ethyl esters using the
 formula and ethanol based products only,


Not sure what you're asking here, but read on...


 or is it making ethyl esters in conjunction
 with vegetable oils?

I wouldn't put much stock in the authorized
uses lists (hair and scalp liniments, candy
glazes, etc. etc.), and this particular formula
would probably make OK biodiesel, albeit with
some ether in there. However, this is an SDA,
not a CDA (completely denatured alcohol), so
you'd still need a permit. Probly not worth
it, unless you have some special source of
just this formula. I'd recommend a CDA 20,
200 proof. Whatever you use, be sure it's
made from grain alcohol -- the hardware store
formulas use ethanol synthesized from petroleum.

-K 


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