D Fujito

Hello.  There is a wastefree event in Florida end of March 2025.  Compost of waste will be presented. It would be great if bsfl and biochar were presented as well compared and contrasted with composting for organic waste

I am happy to support any speakers with research and materials.  Unfortunately I am not available those days to be in Florida.

Hope you can help. This topic is way too important to not be presented

Thank you

https://bit.ly/3UpjkZq

My interest is to get as much syngas as possible.  Therefore burning it to make the char is not my first choice.

Solar heat direct or from pv can dry the biomass and heat a kiln to 400c and with lots and lots of insulation the kiln will stay near that temp

To break the chemical bonds in biomass takes about 1 kw of heat per kg of biomass. Not to heat it up. Just to break the bonds

As many of you have said. When the bonds are broken syngas is released. When burned the syngas from 1 kWh of biomass can create 2 kw of power

I cool and condense the syngas and store it short term in an inner tube

This is pretty compilated for a single home. But on a farm that uses a lot of electricity or someone setting an a microgrid it is a way to double the energy from solar/ renewable. Have electricity 24 hours a day and a days reserve just in case. All produced with biomass. It is far better than burning stubble. Or a city putting tonnes in a landfill.  Plus the output is biochar. Lots and lots of biochar

Hi everyone. we have been working on this for awhile.  Now there are a few technical papers being written.  I have a 2kw system  in my backyard...

In summary...1kg of dry biomass/wood/manure/grass goes into a pyrolysis chamber which  is  heated by solar PV panel.  the chamber has a lot  of insulation around it so the heat is not wasted but used to break the bonds of the biomass to produce biochar and syngas.

Syngas goes to a generator or stored until needed in a few hours..or at night etc. then burned for  electricity.  

from 1 kg of biomass/waste....out comes 300g of biochar and 2kw of electricity:)  only input is sunshine and biomass .

what is your opinion?  any improvement?  is it time to get many  many more people, companies, farms and governments to build similar systems?

a sample of an article describing most of this system is here.  https://wastefree23.org/straw-pyrolysis-revolution-2kw-energy-from-1kw-input-carbon-removal/

Looking forward to your  comments!

I have started making biochar with a solar  concentrating mirror. Works great.  Minimal smoke:)

Here are photos of the setup. Pretty simple. More details are at www.wastefree23.org