title: Effect of organic calcium compounds on combustion characteristics of rice husk, sewage sludge, and bituminous coal: thermogravimetric investigation.
abstract: Experiments were conducted in a thermogravimetric analyzer to assess the enhancement of combustion characteristics of different solid fuels blended with organic calcium compounds (OCCs). Rice husk, sewage sludge, and bituminous coal, and two OCC were used in this study. Effect of different mole ratios of calcium to sulfur (Ca/S ratio) on the combustion characteristics were also investigated. Results indicated that combustion performance indexes for bituminous coal impregnated by OCC were improved, however, an inverse trend was found for sewage sludge because sewage sludge has lower ignition temperature and higher volatile matter content compared to those of OCC. For rice husk, effect of added OCC on the combustion characteristics is not obvious. Different solid fuels show different combustion characteristics with increases of Ca/S ratio. The maximum combustion performance indexes appear at Ca/S ratios of 1:1, 2:1, and 3:1 for OCC blended with Shenhua coal, rice husk, and sewage sludge, respectively.
authors: Key Laboratory of Energy Thermal Conversion and Control of Ministry of Education, School of Energy and Environment, Southeast University, Nanjing 210096, China.
authors: Lihui
authors: L
authors: Zhang
authors: Key Laboratory of Energy Thermal Conversion and Control of Ministry of Education, School of Energy and Environment, Southeast University, Nanjing 210096, China; School of Energy and Environment, Anhui University of Technology, Maanshan 243002, Anhui Province, China.
authors: Feng
authors: F
authors: Duan
authors: Key Laboratory of Energy Thermal Conversion and Control of Ministry of Education, School of Energy and Environment, Southeast University, Nanjing 210096, China. Electronic address: heyyj1975@gmail.com.
authors: Yaji
authors: Y
authors: Huang
mesh_terms: D056804:Biofuels; D002118:Calcium / Q000032:analysis; D017610:Calcium Compounds / Q000494:pharmacology*; D003031:Coal; D007700:Kinetics; D009930:Organic Chemicals / Q000494:pharmacology*; D012275:Oryza / Q000187:drug effects*; D012722:Sewage; D013455:Sulfur / Q000032:analysis; D013818:Thermogravimetry / Q000379:methods*
chemical_list: D056804:Biofuels; D017610:Calcium Compounds; D003031:Coal; D009930:Organic Chemicals; D012722:Sewage; D013455:Sulfur; D002118:Calcium
keywords: Biomass; Coal; Combustion; Organic calcium compound; Sewage sludge