Win a copy of For the Love of Paw Paws this week in the Fruit Trees forum!
  • Post Reply Bookmark Topic Watch Topic
  • New Topic
permaculture forums growies critters building homesteading energy monies kitchen purity ungarbage community wilderness fiber arts art permaculture artisans regional education experiences global resources the cider press projects digital market permies.com private forums all forums
this forum made possible by our volunteer staff, including ...
master stewards:
  • Nicole Alderman
  • r ranson
  • Anne Miller
  • paul wheaton
stewards:
  • Jocelyn Campbell
  • Mike Jay Haasl
  • Burra Maluca
garden masters:
  • James Freyr
  • Joylynn Hardesty
  • Steve Thorn
  • Greg Martin
gardeners:
  • Carla Burke
  • Dave Burton
  • Pearl Sutton

compressing biomethane

 
Posts: 1
  • Mark post as helpful
  • send pies
  • Quote
  • Report post to moderator
All my web research has turned up for gas compressors is either limited to 60psi or is a commercial sized rig that costs thousands. I want to SAFELY compress cleaned biomethane to about 200psi in a steel LP tank. Anyone know how for cheap?
 
Posts: 20
1
  • Mark post as helpful
  • send pies
  • Quote
  • Report post to moderator
I was recently on youtube and found a guy who was compressing it up to 150 psi using basically a cheap compressor from harbor freight and what looked to be a lot of home made stuff. He was stating in his video that he was able to get to an even higher psi, but for the video didn't want to take that long. If I come across it again I will forward the link.
 
Posts: 3
  • Likes 1
  • Mark post as helpful
  • send pies
  • Quote
  • Report post to moderator
I use old fridge compressors to compress biogas. They will compress up to 250 psi and are sealed so that air doesn't get in your storage. Careful though. Around 250 psi the compressor has caps that blow off (internally) incase of an over pressure situation. As for longevity for the compressors I drilled two holes, one on the top and one on the bottom so I could change out the oil. As well the gas is dried before compressing. First by condensing them through a desiccant bead. I have enough that one desiccant can be dried while the other is use. Compressing wet gas will gum the compressor.
 
gardener
Posts: 838
Location: western pennsylvania zone 5/a
54
  • Mark post as helpful
  • send pies
  • Quote
  • Report post to moderator


why not have the "tank " do the compressing for you?

http://sistemabiobolsa.com/home/
http://sistemabiobolsa.com/what-we-do/the-technology/


pretty neat idea
 
Did Steve tell you that? Fuh - Steve. Just look at this tiny ad:
Heat your home with the twigs that naturally fall of the trees in your yard
http://woodheat.net
  • Post Reply Bookmark Topic Watch Topic
  • New Topic
Boost this thread!