Characterization of sugar cane waste biomass derived chars from pressurized gasification

摘要: There is interest in the use of sugar cane waste biomass for electricity cogeneration, by integrated gasification combined cycle (IGCC) processes. This paper describes one aspect an overall investigation into reactivity wastes under pressurized IGGC conditions, input process design. currently a gap understanding morphological transformations experienced undergoing conversion to char during gasification, which addressed this work. Char residuals remaining after pyrolysis and carbon dioxide were analysed optical microscope, nitrogen (BET) adsorption analysis, SEM/EDS, TEM/EDS XPS techniques. The amorphous plant silica structures found remain physically intact entrained flow but chemically altered presence other inorganic species. resulting crystalline silicates mesoporous (with surface areas order 20 m(2) g(-1)) contributed much otherwise limited pore volume present residual chars. Coke deposition intimate blending carbonaceous species was identified. Progressive sintering appeared trap coke deposits network. As result ash showed significant organic contents, even extensive additional oxidation air. implications findings are that full trash materials IGCC conditions may be significantly hampered inherent these further research contributing phenomena recommended.