title: Co-combustion of bituminous coal and biomass fuel blends: Thermochemical characterization, potential utilization and environmental advantage.
abstract: The thermochemical characteristics and gaseous trace pollutant behaviors during co-combustion medium-to-low ash bituminous coal with typical biomass residues (corn stalk and sawdust) were investigated. Lowering of ignition index, burnout temperature and activation energy in the major combustion stage are observed in the coal/biomass blends. The blending proportion of 20% and 30% are regarded as the optimum blends for corn stalk and sawdust, respectively, in according the limitations of heating value, activation energy, flame stability and base/acid ratio. The reductions of gaseous As, Cd, Cu, Pb, Zn and polycyclic aromatic hydrocarbon (PAHs) were 4.5%, 7.8%, 6.3%, 9.8%, 9.4% and 17.4%, respectively, when co-combustion coal with 20% corn stalk. The elevated capture of trace elements were found in coal/corn stalk blend, while the coal/sawdust blend has the better PAHs control potential. The reduction mechanisms of gaseous trace pollutants were attributed to the fuel property, ash composition and relative residence time during combustion.
authors.affiliation: CAS Key Laboratory of Crust-Mantle Materials and the Environments, School of Earth and Space Sciences, University of Science and Technology of China, Hefei 230026, China; State Key Laboratory of Loess and Quaternary Geology, Institute of Earth Environment, The Chinese Academy of Sciences, Xi'an, Shaanxi 710075, China.
authors.forename: Chuncai
authors.initials: C
authors.lastname: Zhou
authors.affiliation: CAS Key Laboratory of Crust-Mantle Materials and the Environments, School of Earth and Space Sciences, University of Science and Technology of China, Hefei 230026, China; State Key Laboratory of Loess and Quaternary Geology, Institute of Earth Environment, The Chinese Academy of Sciences, Xi'an, Shaanxi 710075, China. Electronic address: lgj@ustc.edu.cn.
authors.forename: Guijian
authors.initials: G
authors.lastname: Liu
authors.affiliation: CAS Key Laboratory of Crust-Mantle Materials and the Environments, School of Earth and Space Sciences, University of Science and Technology of China, Hefei 230026, China.
authors.forename: Xudong
authors.initials: X
authors.lastname: Wang
authors.affiliation: CAS Key Laboratory of Crust-Mantle Materials and the Environments, School of Earth and Space Sciences, University of Science and Technology of China, Hefei 230026, China.
authors.forename: Cuicui
authors.initials: C
authors.lastname: Qi
mesh_terms: D000393:Air Pollutants / Q000737:chemistry; D001151:Arsenic / Q000737:chemistry; D056804:Biofuels; D018533:Biomass; D002104:Cadmium / Q000737:chemistry; D002244:Carbon / Q000737:chemistry; D003031:Coal / Q000032:analysis*; D060729:Coal Ash / Q000032:analysis; D003300:Copper / Q000737:chemistry; D004785:Environmental Pollutants / Q000737:chemistry; D006358:Hot Temperature; D007700:Kinetics; D007854:Lead / Q000737:chemistry; D010100:Oxygen / Q000737:chemistry; D011084:Polycyclic Aromatic Hydrocarbons / Q000737:chemistry*; D013818:Thermogravimetry; D014934:Wood / Q000737:chemistry*; D015032:Zinc / Q000737:chemistry
chemical_list: D000393:Air Pollutants; D056804:Biofuels; D003031:Coal; D060729:Coal Ash; D004785:Environmental Pollutants; D011084:Polycyclic Aromatic Hydrocarbons; D002104:Cadmium; D007854:Lead; D002244:Carbon; D003300:Copper; D015032:Zinc; D001151:Arsenic; D010100:Oxygen
keywords: Biomass; Co-combustion; Coal; Environmental implication; Optimum blend; Thermochemical characteristic