[Study on the calcium-based sorbent for removal fluorine during coal combustion].
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.
Li
Shu-ling
SL
College of Resource and Environment Engineering, Liaoning Technical University, Fuxin 123000, China.
Qi
Qing-jie
QJ
Liu
Jian-zhong
JZ
Cao
Xin-yu
XY
Zhou
Jun-hu
JH
Cen
Ke-fa
KF
D000042:Absorption; D017610:Calcium Compounds / Q000494:pharmacology*; D003031:Coal; D005461:Fluorine / Q000302:isolation & purification*; D006358:Hot Temperature; D010087:Oxides / Q000494:pharmacology*
D017610:Calcium Compounds; D003031:Coal; D010087:Oxides; D005461:Fluorine; C016538:lime