title: Co-firing of oil sludge with coal-water slurry in an industrial internal circulating fluidized bed boiler.
abstract: Incineration has been proven to be an alternative for disposal of sludge with its unique characteristics to minimize the volume and recover energy. In this paper, a new fluidized bed (FB) incineration system for treating oil sludge is presented. Co-firing of oil sludge with coal-water slurry (CWS) was investigated in the new incineration system to study combustion characteristics, gaseous pollutant emissions and ash management. The study results show the co-firing of oil sludge with CWS in FB has good operating characteristic. CWS as an auxiliary fuel can flexibly control the dense bed temperatures by adjusting its feeding rate. All emissions met the local environmental requirements. The CO emission was less than 1 ppm or essentially zero; the emissions of SO(2) and NO(x) were 120-220 and 120-160 mg/Nm(3), respectively. The heavy metal analyses of the bottom ash and the fly ash by ICP/AES show that the combustion ashes could be recycled as soil for farming.
authors.affiliation: School of Mechanical Engineering, Shanghai JiaoTong University, Shanghai, PR China.
authors.forename: Jianguo
authors.initials: J
authors.lastname: Liu
authors.forename: Xiumin
authors.initials: X
authors.lastname: Jiang
authors.forename: Lingsheng
authors.initials: L
authors.lastname: Zhou
authors.forename: Hui
authors.initials: H
authors.lastname: Wang
authors.forename: Xiangxin
authors.initials: X
authors.lastname: Han
mesh_terms: D002244:Carbon / Q000032:analysis; D003031:Coal; D060729:Coal Ash; D003247:Conservation of Natural Resources / Q000379:methods; D005648:Fuel Oils; D005740:Gases / Q000032:analysis; D017745:Incineration / Q000379:methods*; D019216:Metals, Heavy / Q000032:analysis; D009569:Nitric Oxide; D052638:Particulate Matter / Q000032:analysis; D012722:Sewage; D012987:Soil; D013458:Sulfur Dioxide; D014867:Water
chemical_list: D003031:Coal; D060729:Coal Ash; D005648:Fuel Oils; D005740:Gases; D019216:Metals, Heavy; D052638:Particulate Matter; D012722:Sewage; D012987:Soil; D014867:Water; D013458:Sulfur Dioxide; D009569:Nitric Oxide; D002244:Carbon