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Tuesday, May 08, 2007

Charcoal for carbon sequestration? Sounds good...

maybe too good to be true? I hope not..it does sound promising. I hope we hear more about this.

Charcoal from biowaste may remove carbon from atmosphere, on global scale



Terrigal, New South Wales, Australia - As delegates met in Bangkok this week to debate climate change solutions contained in the IPCC's latest report, one technology not mentioned in the draft report was being closely examined at a conference in Australia in the beach town of Terrigal, just north of Sydney.

The first meeting of the International Agrichar Initiative convened about 100 scientists, policymakers, farmers and investors with the goal of birthing an entire new industry to produce a biofuel that goes beyond carbon neutral and is actually carbon negative. The industry could provide a "wedge" of carbon reduction amounting to a minimum of ten percent of world emissions and possibly much more.

Agrichar is the term not for the biomass fuel, but for what is left over after the energy is removed: a charcoal-based soil amendment. In simple terms, the agrichar process takes dry biomass of any kind and bakes it in a kiln to produce charcoal. The process is called pyrolysis. Various gases and bio-oils are driven off the material and collected to use in heat or power generation. The charcoal is buried in the ground, sequestering the carbon that the growing plants had pulled out of the atmosphere. The end result is increased soil fertility and an energy source with negative carbon emissions.



much more at the link.



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