TY - GEN
T1 - Kinetics study and influence of Ca/Si on volatilization of CuCl2 in thermal process
AU - Li, Yanlong
AU - Li, Rundong
AU - Zhang, Haijun
AU - Wang, Lei
AU - Ke, Xin
PY - 2009
Y1 - 2009
N2 - Aimed at the characteristic of MSWI fly ash in China that high content of chlorine, the volatilization of copper chloride (CuCl2) was studied. Firstly, the volatilization experiments of CuCl2 (about 28 mg) were carried out in a high temperature TGDTA system, the considerable factors included atmosphere (Nitrogen and Air), heating rate (10°C/min, 15°C/min and 20°C/min) and different ratio of CaO/SiO2(mole ratio in 0.6, 0.8, 1.0, 1.2 and 1.4); Subsequently, the intrinsic kinetic model of CuCl 2 volatilization was worked out. For experimental study the results show that: Two reaction peaks appeared in TG and DTG curves of CuCl2 volatilization; The volatilization rate of CuCl2 in Air atmosphere are lower than that in Nitrogen atmosphere obviously; The changing tendency of volatilization rate of CuCl2 with the increase of CaO/SiO2 is approximately U form. For Kinetics study the results show that: The two reactions can be described by 1-order kinetic model and 1/2-order kinetic modelin Nitrogen atmosphere, while 2/3-order and zero-order in Air atmosphere; The reaction order and activation energy all reduced with the increase of CaO/SiO2.
AB - Aimed at the characteristic of MSWI fly ash in China that high content of chlorine, the volatilization of copper chloride (CuCl2) was studied. Firstly, the volatilization experiments of CuCl2 (about 28 mg) were carried out in a high temperature TGDTA system, the considerable factors included atmosphere (Nitrogen and Air), heating rate (10°C/min, 15°C/min and 20°C/min) and different ratio of CaO/SiO2(mole ratio in 0.6, 0.8, 1.0, 1.2 and 1.4); Subsequently, the intrinsic kinetic model of CuCl 2 volatilization was worked out. For experimental study the results show that: Two reaction peaks appeared in TG and DTG curves of CuCl2 volatilization; The volatilization rate of CuCl2 in Air atmosphere are lower than that in Nitrogen atmosphere obviously; The changing tendency of volatilization rate of CuCl2 with the increase of CaO/SiO2 is approximately U form. For Kinetics study the results show that: The two reactions can be described by 1-order kinetic model and 1/2-order kinetic modelin Nitrogen atmosphere, while 2/3-order and zero-order in Air atmosphere; The reaction order and activation energy all reduced with the increase of CaO/SiO2.
KW - CuCl
KW - Kinetic
KW - MSWI fly ash
KW - Ratio of CaO/SiO
KW - Volatilization
UR - http://www.scopus.com/inward/record.url?scp=77949529734&partnerID=8YFLogxK
U2 - 10.1109/ICEET.2009.557
DO - 10.1109/ICEET.2009.557
M3 - 会议稿件
AN - SCOPUS:77949529734
SN - 9780769538198
T3 - 2009 International Conference on Energy and Environment Technology, ICEET 2009
SP - 380
EP - 384
BT - 2009 International Conference on Energy and Environment Technology, ICEET 2009
T2 - 2009 International Conference on Energy and Environment Technology, ICEET 2009
Y2 - 16 October 2009 through 18 October 2009
ER -