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tkrolfe(at)usadatanet.net
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 Posted: Fri Apr 28, 2006 5:54 am Post subject: Ethanol |
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Anyone out there have a practical idea on how to removes the ethanol
from gas or does it have to be re-refined through a "cracker" to
eliminate it. Wish I had paid more attention in chemistry class!!!!
Just asking! Seems like if they can add it there should be a way to
remove it.
Terry - FireFly #95
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Dave Bigelow
Joined: 29 Jan 2006
Posts: 103
Location: Kamuela, Hawaii
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| Posted: Sat Apr 29, 2006 12:25 am Post subject: Re: Ethanol |
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| Quote: | Anyone out there have a practical idea on how to removes the ethanol
from gas |
One way I've heard suggested (but haven't tried) is to take advantage of ethanol's affinity for water. Add water to the mixture and agitate it. Most of the ethanol will come out of solution (mixes with the water), and when the mixture settles down, the apparent amount of water will have increased by the amount of ethanol that mixed with the water. Pour off the gas, and you should have very little ethanol left in the mixture.
The octane of the gas will be less than the gas/ethanol mixture, so if you do this with 87 octane E-10, the remaining gas will be less than 87 octane.
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Dave Bigelow
Kamuela, Hawaii
FS2, HKS 700E |
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tkrolfe(at)usadatanet.net
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| Posted: Mon May 01, 2006 6:20 am Post subject: Ethanol |
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Dave, Boyd,
Thanks for the response on my question of removing ethanol from gasoline.
Might consider tying it and then add octane booster that can be gotten
at auto supply stores.
Would like to keep my now 500 hour 447 running without losing the
crankcase seals.
Haven't tore it down yet and don't wish to for some time yet.
And Jack, I get 25 to 27 miles to the gallon on my FireFly cruising at
about 5200 rpm.
Being pushed by a Tennessee two blade wood prop with the tips cut as I
discussed before.
I'm real pleased with the performance of my 447. Steady and reliable!!!
And while Im at it, for those of you exploring alternative gear legs,
listen to what John H. is
trying to tell you!! I followed his lead and made tempered 4130 gear
legs for my FireFly and
have forgotten about them since. Land in farm fields quite a bit here
in "Amish" country.
Terry - FireFly #95
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Steven Green
Joined: 05 Feb 2006
Posts: 118
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| Posted: Mon May 01, 2006 4:23 pm Post subject: Ethanol |
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Where are you John Bickham or some other Gasoline guru?
Wouldn't the gasoline retain some of the water after being saturated? I'm
just asking.
It seems that aviation fuel will seperate from water more completely than
auto gas will. When I fly local I always use auto fuel and have never had
even a drop of water appear in the sample cup but when on trips where I have
filled up with avgas several times I will get a bead or two in the sample
cup. I believe the water is from condensation but is not absorbed into the
avgas the way it is into the auto gas. This is just an observation and may
not be correct.
Small amounts of water suspended in gasoline probably is not a big issue
with the exception of carb icing.
Where are all the hydo-carbon/*ane guys
Steven Green
do not archive
| Quote: | One way I've heard suggested (but haven't tried) is to take advantage of
ethanol's affinity for water. Add water to the >mixture and agitate it.
|
Most of the ethanol will come out of solution (mixes with the water), and
when the mixture settles >down, the apparent amount of water will have
increased by the amount of ethanol that mixed with the water. Pour off the
| Quote: | gas, and you should have very little ethanol left in the mixture.
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| Quote: | Might consider tying it and then add octane booster that can be gotten
at auto supply stores.
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Steven Green |
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