摘要
研究了用超声波解吸柠檬酸盐溶液中SO2的影响因素.重点考察了温度、电流强度、搅拌强度、初始SO2浓度及柠檬酸盐浓度对SO2解吸率、柠檬酸盐溶液稳定性和硫酸根浓度的影响,并与无超声时作了对比.结果表明,应用超声可提高SO2解吸率,但不改变解吸反应机理,且解吸过程中柠檬酸盐保持稳定,无硫酸根生成.确定了在超声波频率为40kHz时,超声解吸SO2的最佳温度为50℃,最佳电流强度为1.4A.
The factors influencing the SO2 desorption rate in citrate solution with ultrasonification are studied. The effects of temperature, electric current, stirring intensity, initial concentration of SO2 and concentration of citrate solution on SO2 desorbing efficiency, the stability of citrate solution and SO4^2- concentration are investigated. The results show that the use of ultrasonification can improve the desorbing process without changing the essence of reacting process. In the desorption process, citrate is not decomposed and sulfate not increased. When the acoustic frequency is set at 40 kHz, the optimal desorbing temperature and current intensity are 50 ℃ and 1.4 A, respectively.
出处
《过程工程学报》
EI
CAS
CSCD
北大核心
2006年第1期42-46,共5页
The Chinese Journal of Process Engineering
基金
国家自然科学基金重点资助项目(编号:50244012)
关键词
SO2
柠檬酸盐
超声
解吸
sulfur dioxide
citrate
ultrasonification
desorption
