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 also have 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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-- Pagandai V PannirselvamUniversidade Federal do Rio Grande do Norte - UFRNDepartamento de Engenharia Química - DEQCentro de Tecnologia - CTPrograma de Pós Graduação em Engenharia Química - PPGEQ
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