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 Pannirselvam
Universidade Federal do Rio Grande do Norte - UFRN
Departamento de Engenharia Química - DEQ
Centro de Tecnologia - CT
Programa de Pós Graduação em Engenharia Química - PPGEQ
Grupo de Pesquisa em Engenharia de Custos - GPEC
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