This can be done using solar energy and a parabolic trough. Auger feeds ground biomass in one end, the other end gets biochar, water vapor and a range of fract

This can be done using solar energy and a parabolic trough. Auger feeds ground biomass in one end, the other end gets biochar, water vapor and a range of fractions, from methane to tars. Methane and the tar can both be burned to power the auger and other processes, though the methane is easier to work with.