Pyrolysis Biochar Systems: Comparison of Climate Change Mitigation Effects of Slow, Intermediate and Fast Pyrolysis Processes

P.A. Brownsort & Ma&Scaron
This study examines how the choice of technology for pyrolysis biochar systems affects potential benefits, particularly for climate change mitigation. A simple model is used to compare effects on greenhouse gas balance and electricity generating capability of slow, intermediate and fast pyrolysis processes with each other and with direct combustion; there is a trade­off between benefits following from the different product yield distributions. High biochar yields allow greater net CO2 benefits but lower electrical output...