| 中空纤维膜吸收器脱硫效用及其评价方法研究 |
| 作者：关毅鹏1，邢阳阳1，2，刘铮1，张鸿2，陈颖1 |
| 单位： 1.国家海洋局天津海水淡化与综合利用研究所,天津 300192; 2.大连工业大学纺织与材料工程学院,大连 116034 |
| 关键词： 中空纤维膜;膜吸收器;传质性能;评价方法 |
| DOI号： |
| 分类号： TQ028.8;X701.3 |
| 出版年,卷(期):页码： 2016,36(6):42-46 |
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摘要： |
| 采用新型错流式中空纤维膜吸收器,以脱盐水、氢氧化钠和亚硫酸铵水溶液作为吸收剂,考察了吸收剂种类、吸收液浓度、气液比、烟气中SO2浓度、烟气及吸收液温度等因素对膜吸收器脱硫效用的影响规律,从而提出和建立膜吸收器传质性能指标体系及其评价方法.研究结果表明,吸收液浓度、气液比、烟气中SO2浓度是影响膜吸收器脱硫效用的关键指标,而烟气和吸收液温度影响不明显.在一定温度压力和烟气浓度条件下,选用一定浓度的亚硫酸铵水溶液作为吸收剂,评价膜吸收器的膜效用和脱硫性能指标是准确可行的. |
| A study of flue gas desulfurization was carried out using self-developed box-type hydrophobic polypropylene hollow fiber membrane contactor with which desalted water, sodium hydroxide and ammonium sulfite were chosen as absorbents. The effects of various influent factors on membrane utility were investigated, such as the absorbent selection, the concentration of the absorbent, the gas-liquid ratio, the concentration of SO2, the temperature of gas and liquid. Accordingly, the mass transfer performance index system and the evaluation method of membrane contactor were proposed and established. The research results showed that the absorbent concentration, gas-liquid ratio and concentration of SO2 were key factors to the desulfurization efficiency, while the influence of temperature of gas and fluid was not obvious. It is indicated that the membrane utility and desulfurization performance index could be accurate on the condition that a specified concentration of ammonium sulfite solution was chosen as absorbent with the corresponding conditions of temperature, pressure and flue gas concentration. |
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基金项目： |
| 基金项目:2013海洋公益性行业科研专项经费项目(201305004) |
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作者简介： |
| 第一作者简介:关毅鹏(1980-),男,吉林敦化人,学士,高级工程师,从事膜技术研发与应用. E-mail:114324092@qq.com,*通讯作者,E-mail:chy786@qq.com |
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参考文献： |
| [1] Rob Klaassen. Achieving flue gas desulphurization with membrane gas absorption [J].Filtration & Separation, 2003,40(10):26-28. [2] S.N.Ashrafizadeh, Z.Khorasani. Ammonia removal from aqueous solutions using hollow-fiber membrane contactors [J]. Chemical Engineering Journal,2010,162 (1):242-249. [3] V.Y. Dindorea, D.W.F. Brilmanc, G.F. Versteegb. Modelling of cross-flow membrane contactors: physical mass transfer processes [J].Journal of Membrane Science,2005,251(1-2):209– 222. [4] 陈颖,关毅鹏,郭春刚,等.气-液膜接触器结构优化及其传质性能研究[J].膜科学与技术,2012,32(3):52-58. [5] 崔振东,侯纯扬,陈颖,等.膜吸收法浓海水烟气脱硫试验研究[J].膜科学与技术, 2010,31(1):84-88. [6] 邵申,孙在柏,万皓,等.氨法烟气脱硫技术的工艺研究[J].环境工程,2011,29(5): 71-74. [7] 环境保护部国家质量监督检验检疫总局.GB 13223-2011,火电厂大气污染物排放标准[S].北京:中国环境科学出版社, 2011. [8] 朱宝库,陈炜,王建黎,等.膜接触器分离混合气中二氧化碳的研究[J].环境科学, 2003,24(5):34-38. [9] 瞿如敏,沙焱,陈浩,等.聚丙烯中空纤维膜组件分离烟气中的CO2[J].化工进展,2013, 32(11):2778-2782. |
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