Abstract: A system for producing combustible biomaterial is described. The system includes: (i) a lignocellulose rupturing device for rupturing lignocellulose in biomass to produce a ruptured biomass material, the ruptured biomass material having an inorganic material; (ii) a washing subassembly designed to wash the ruptured biomass material having said inorganic material with a solvent and produce an inorganic-material-enriched solvent and an inorganic-material-depleted ruptured biomass; and (iii) a pyrolyzing subassembly for pyrolyzing the inorganic-material-depleted ruptured biomass to produce a combustible biomaterial.