• 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 skip experiences global resources cider press projects digital market permies.com private forums all forums
this forum made possible by our volunteer staff, including ...
master stewards:
  • Anne Miller
  • Nicole Alderman
  • r ranson
  • Pearl Sutton
  • Mike Haasl
  • paul wheaton
stewards:
  • Joylynn Hardesty
  • Dave Burton
  • Joseph Lofthouse
master gardeners:
  • jordan barton
  • Greg Martin
gardeners:
  • Carla Burke
  • Ash Jackson
  • Kate Downham

How long does pyrolysis last in a biochar retort?

 
Posts: 4
  • Mark post as helpful
  • send pies
  • Quote
  • Report post to moderator
Hi all,

I have made a post on here before about building a biochar retort and harvesting energy from it in the form of electricity. Thermoelectric generators appear to be the move, but in order to calculate how much energy is going to be provided from our retort, an estimate for how long the pyrolysis process will last. The plans are to use a 55-gallon drum as the pyrolysis chamber. The kiln will be well insulated and the energy will be harvested from the exhaust.

I was wondering if anyone on here had some experience with biochar retorts and would be able to offer me a rough estimate of how long I might be able to keep this kiln up to temperature. I'm a mechanical engineering student about to graduate in May and this is actually a part of my senior design project so any advice here would be great!

Thanks!
 
pollinator
Posts: 1793
Location: Wisconsin, zone 4
95
  • Likes 1
  • Mark post as helpful
  • send pies
  • Quote
  • Report post to moderator
I can give you a very rough estimate from my experience.  Depending on the type of wood you are using, 1.5 to 3 hrs.
gift
 
Collection of 14 Permaculture/Homesteading Cheat-Sheets, Worksheets, and Guides
will be released to subscribers in: soon!
reply
    Bookmark Topic Watch Topic
  • New Topic