HYBB-1 biomass gasfier In the plant biomass (including wood,weeds, pine needle, leaf, crops straw, cattle and sheep dung. HYBB-1 biomass gasifierstraw gasifier technology principle:In the plant biomass (including wood,weeds, pine needle, leaf, crops straw, cattle and sheep dung, mushroom residue) the percent of the carbon element is about forty percent, followed by hydrogen, nitrogen, oxygen, ...