[biofuel] Cold distillation?

[agroefekta]

By my opinion, distillation with low pressure can save energy. 
There is no need to heat all water, and there is no need to 
waste water for cooling. 
If evaporation takes place at, let's say 35oC, there is difference 
of temperature of 15-20oC. 
In those conditions one can use thermal pump (like 
refrigerator) to re-use heat from condenser to heat 
unevaporated alocohol again.
There is need for some energy for pump and for small source 
of heat and that is all.

I would to know if anyone tried this before.
In any case, I would most grateful for data about evaporation 
temperature of alcohol depending of pressure. 


 Yahoo! Groups Sponsor -~--
Free $5 Love Reading
Risk Free!
http://us.click.yahoo.com/Pp91HA/PfREAA/Ey.GAA/FGYolB/TM
-~-

Biofuel at Journey to Forever:
http://journeytoforever.org/biofuel.html

Biofuels list archives:
http://archive.nnytech.net/

Please do NOT send quot;unsubscribequot; messages to the list address.
To unsubscribe, send an email to:
[EMAIL PROTECTED] 

Your use of Yahoo! Groups is subject to http://docs.yahoo.com/info/terms/ 

[biofuel] How to make calcium chloride?

[agroefekta]

I have read some time before that CaCl2 can be used to dry alcohols 
as well as esters. 
I am not good in chemistry, but believe that reaction of CaO and HCl 
can produce CaCl 2.
Im my country there are many manufacturers of Cao, so I could make it 
quite easy.

One more question. Can this salt be recovered after it has been used 
for dehidration?


 Yahoo! Groups Sponsor -~--
Will You Find True Love?
Will You Meet the One?
Free Love Reading by phone!
http://us.click.yahoo.com/Deo18C/zDLEAA/Ey.GAA/FGYolB/TM
-~-

Biofuel at Journey to Forever:
http://journeytoforever.org/biofuel.html

Biofuels list archives:
http://archive.nnytech.net/

Please do NOT send quot;unsubscribequot; messages to the list address.
To unsubscribe, send an email to:
[EMAIL PROTECTED] 

Your use of Yahoo! Groups is subject to http://docs.yahoo.com/info/terms/