I am new to biomass gasification but have been involved with establishing jatropha curcas plantations in Madagascar. It seems to me that entire jatropha seeds in their husks might work very well with GEK. Jatropha curcas is an alternative energy source as the seeds can be pressed to produce a non-food oil that can be used as bio-diesel. There have already been some trials of using jatropha husks as a biomass feedstock but GEK technology looks highly appropriate for generating electricity at village level.
The seeds complete with husk are easily available and appear to be about the right shape and size for GEK and would have a high energy density and the oil content would be about 15%.
Considering the energy consumption necessary to extract the oil (decortication of the husk, removal of the seed coat and pressing the kernels) I am curious what the comparison of net energy gain between using jatropha oil for fuel or directly using the seeds in their husks.
So if anyone has tried using jatropha curcas seeds, husks, or presscake as biomass feed stock for GEK I'd love to hear from you.