mgs
[Top] [All Lists]

Re: Ethanol

To: mup1dm <mup1dm@surrey.ac.uk>
Subject: Re: Ethanol
From: "Andrew B. Lundgren" <Lundgren@iname.com>
Date: Wed, 14 Jun 2000 09:35:38 -0600 (MDT)
If the gasahol burns slower, then it would have a hight octane.  Considering 
that the mix can go as high as 25% (someone on the list said that)  I would 
expect the octane of the fuel to vary somewhat...




On Wed, 14 Jun 2000, mup1dm wrote:

> When pondering the question of "Gasahol" bear in mind that the 
> petrol at the pump, whether in Europe or North America, is 
> composed of the refined petroleum product we think of as 
> "gasoline" PLUS a whole lot of other things that give the
> features and characteristics required by the modern market.
> "Straight" gasoline is much TOO volatile for todays cars,
> so other componds are added to control the temperature of 
> ignition, temperature of vapourisation, burn rate, and any 
> number of other parameters as dictated by local requirements.
> 
> Market price ethanol may be US $2/Gallon, but as an octane
> booster/oxygenator/fuel-system-cleaner/antifreeze that 
> still makes it about half as costly as most of the xxx-ane's 
> and xxx-ene's that would otherwise be used, so it is in fact 
> quite likely that whatever refinery supplies your local
> pump is including either wood or grain alcohol in the mix,
> even when laws don't require it.
> 
> I too used to seek out Gasahol for a particular car that 
> would ping on (US) 93 octane fuel but was fine with 89
> octane gasahol. Go figure...
> 
> Douglas McKinnie
> 
> 


<Prev in Thread] Current Thread [Next in Thread>
  • Re: Ethanol, mup1dm
    • Re: Ethanol, Andrew B. Lundgren <=