title: [Study on the calcium-based sorbent for removal fluorine during coal combustion].
abstract: In the paper, the reaction of CaO-HF and fluorine removal mechanics at high temperature by blending calcium-based sorbents with coal during coal combustion were discussed, and test results about fluorine retention during coal combustion in fluidized bed and chain-grate furnace were reported. The results identified that lime and calcium-based sorbets developed can restratin the emission of fluorine during coal combustion. The efficiency of fluorine removal can reach 66.7%-70.0% at Ca/F 60-70 by blending lime with coal in fluidized bed combustion, and the efficiency of fluorine removal are between 57.32% and 75.19% by blending calcium-based sorbets with coal in chain-grate furnace combustion. Blending CaO or lime with coal during coal combustion can remove SO2 and HF simultaneously.
authors.affiliation: College of Resource and Environment Engineering, Liaoning Technical University, Fuxin 123000, China.
authors.forename: Shu-ling
authors.initials: SL
authors.lastname: Li
authors.forename: Qing-jie
authors.initials: QJ
authors.lastname: Qi
authors.forename: Jian-zhong
authors.initials: JZ
authors.lastname: Liu
authors.forename: Xin-yu
authors.initials: XY
authors.lastname: Cao
authors.forename: Jun-hu
authors.initials: JH
authors.lastname: Zhou
authors.forename: Ke-fa
authors.initials: KF
authors.lastname: Cen
mesh_terms: D000042:Absorption; D017610:Calcium Compounds / Q000494:pharmacology*; D003031:Coal; D005461:Fluorine / Q000302:isolation & purification*; D006358:Hot Temperature; D010087:Oxides / Q000494:pharmacology*
chemical_list: D017610:Calcium Compounds; D003031:Coal; D010087:Oxides; D005461:Fluorine; C016538:lime