[Digestion] compressing biogas

[Ken Calvert]

Michael etal,   coming back for a second bite at the cherry.  There used to 
be on the market ,out of Europe,  a micro cng compressor by which an urban 
person, could take natural gas from their household supply, and pump it up 
to the required pressure straight into the tank of their car overnight.  It 
was quite small and operated at about 1/3 to 1/2 hp.  It would sit in the 
corner of ones garage and got around all the OSH regulations by not storing 
permantly anything dangerous under pressure in ones house.
    I once talked to someone else who had hooked a  hand operated grease gun 
to a 1/4 hp motor. A lever grease gun will take you up to 7000psi. 
However, he had his pressures and compression ratios all wrong  and it was 
even more painfully slow than one might imagine.   Happy compressing.
----- Original Message ----- 
From: "Michael Smith" <michael_1234 at msn.com>
To: "digestion" <digestion at listserv.repp.org>
Sent: Monday, September 03, 2007 8:31 AM