利用乳状液膜技术海水-石灰石湿法烟气脱硫
作者:张俊杰,宋祥家,李红霞,张良,陈先长,韩漫漫
单位: 河北联合大学化学工程学院,生命科学学院,唐山 06300
关键词: 脱硫;海水;烟气;乳状液膜;石灰石
出版年,卷(期):页码: 2013,33(5):78-81

摘要:
采用煤油为膜溶剂、兰-113B为表面活性剂、饱和石灰石水溶液为内相液、海水为外相液的乳状液膜体系进行了烟气脱硫的实验研究。探讨了表面活性剂用量、油内体积比、乳水体积比等因素对脱硫效率的影响以及乳状液的回收再利用。最佳的操作条件为:表面活性剂兰-113B的用量为3%,油内体积比为5:5,乳水体积比为1:5,进气SO2浓度约为2300mg/m3,气体流速为500ml/min,脱硫的搅拌速度为150~250r/min,脱硫时间为40min。破乳后的油相液可以重复用于制乳,在最佳条件下烟气脱硫效率可达到98%以上。
Flue gas desulfurizationwas studied by using the technique of emulsion liquid membrane, which was composed of seawater as desulfurizer, kerosene asmembrane solvent, L-113B as surfactant,and Ca(OH )2solution as internal phase. The desulfurization efficiency of absorbing solution was investigated for the concentration of L113B, volumeratioofoilphasetointernalphaseand the volume ratio of emulsiontoexternal phase. The optimum conditions are as follows: the concentration of surfactant L-113B is 3%,volume ratio of oil phase to internal phase is 5:5,the volume ratio of emulsion to external phase is 1:5,the concentration of SO2 in flue gas is 2300mg/m3,the gas flow rate is 500ml/min,mixing speed is 150~250r/min and the time is 40min for desulfuration. The oil phase can be reused to make emulsion. The results showed that the efficiency of desulfurization was over 98% under optimum conditions.
张俊杰(1963-),天津蓟县人,主要研究方向为化工分离与分析、生物技术。李红霞(1963年9月生人),女,内蒙古人,博士,教授,研究方向为化学分离与分析,电子信箱:lhx2453@126.com

参考文献:
[1]雷仲存. 工业脱硫技术[M].北京: 化学工业出版社, 2001, 371-372.
[2]Vidalb F, Ollero P. A kinetic study of the oxidation of S (Ⅳ) in seawater [J]. Environ SciTechnol, 2001, 35(13): 2792~2796.
[3]董学德, 李绍箕. 燃煤电厂海水烟气脱硫工艺原理初探[J]. 环境工程, 1997, 15(4): 20~24.
[4]孙雪雁, 杨凤林.膜吸收法海水脱硫研究[J].膜科学与技术,2008,28(1):66-71.
[5] Ahmad AL,KusumastutiAdhi, Derek CJC, etal. Emulsion liquid membrane for cadmium removal: Studies on emulsiondiameter and stability [J]. Desalination,2012,287: 30-34.
[6] BhowalA, Bhattacharyya G, Inturu B, etal.Continuous removal of hexavalent chromium by emulsion liquid membranein a modified spray column [J].SepPurifTechnol,2012,99 : 69-76.
[7] 范文娟,党亚固,费德君等. 乳状液膜法提取模拟湿法磷酸中的稀土镧[J]. 膜科学与技术, 2008, 28(1): 66-71. 2012, 32(2): 46-51.

服务与反馈:
文章下载】【加入收藏

《膜科学与技术》编辑部 地址:北京市朝阳区北三环东路19号蓝星大厦 邮政编码:100029 电话:010-64426130/64433466 传真:010-80485372邮箱:mkxyjs@163.com

京公网安备11011302000819号