Re: [Biofuel] Questions on drying Ethanol

[Pannirselvam P.V]

Hi Tom 

 As significant equal quantity of
CO2 is produzido along with bioethanol , which can be very
well utized to regenerate the the used zeolites to replace
Nitrogen gas

sd
Pannirselvam P.V 

 On 8/19/05, Tom Irwin [EMAIL PROTECTED] wrote:



 
 


Hi All,

I´m trying to figure my local costs for ethanol to try some
batches in BioD from waste oil. Ethanol 100% is quite expense, 95 % a
bit less and 70% least costly. I have a supplier of 3A molecular sieve
at about US $40 per kilogram. I was planning on starting with the 95%
and running it through a column filled with about 250 grams of the 3A
sieve. I generate my own electricity. Though it is a cost, I have some
excess capacity. I alsohave a muffle furnace that can get at
least to 550 C. The last time I worked with zeolites and molecular
sieves I had access to nitrogen gas to pump through to regenerate the
columns to remove bound water. I no longer have that nitrogen
gas.Is it possible to regenerate the 3A mole sieve without a
blanketing gas? I may be able to pump air through the column. Does my
procedure seem right for removing the water from 95% ethanol? Would the
same procedure work with the 70% ethanol?

Thanks,

Tom Irwin
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[Biofuel] Questions on drying Ethanol

[Tom Irwin]

Hi All,

I´m trying to figure my local costs for ethanol to try some batches in BioD from waste oil. Ethanol 100% is quite expense, 95 % a bit less and 70% least costly. I have a supplier of 3A molecular sieve at about US $40 per kilogram. I was planning on starting with the 95% and running it through a column filled with about 250 grams of the 3A sieve. I generate my own electricity. Though it is a cost, I have some excess capacity. I alsohave a muffle furnace that can get at least to 550 C. The last time I worked with zeolites and molecular sieves I had access to nitrogen gas to pump through to regenerate the columns to remove bound water. I no longer have that nitrogen gas.Is it possible to regenerate the 3A mole sieve without a blanketing gas? I may be able to pump air through the column. Does my procedure seem right for removing the water from 95% ethanol? Would the same procedure work with the 70% ethanol?

Thanks,

Tom Irwin___
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