膜科学与技术

膜吸收法烟气同时脱硫脱硝试验研究

作者：关毅鹏¹，陈颖¹，²，张召才¹，刘国昌¹，郭春刚¹，李浩¹，李晓明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

关键词：中空纤维膜；气?液膜接触器；膜气体吸收；烟气同时脱硫脱硝

出版年,卷(期):页码： 2014,34(1):111-115

摘要：

采用自行研制的新型错流式气−液膜接触器,以NaClO2海水溶液为吸收液,以NaHCO3/Ca(OH)2/Ca(ClO)2为添加剂,对电厂燃煤烟气开展膜吸收法烟气同时脱硫脱硝现场试验研究.考察了吸收液流量、浓度、活化时间、初始pH以及烟气流量、SO2浓度等因素对脱硫脱硝效果的影响.试验表明:增大吸收液流量和浓度,NOx和SO2脱除率升高;延长吸收液活化时间,增大烟气流量,脱硫脱硝率略有降低;吸收液初始pH的升高,脱硫率几乎不变,而脱硝率却略有降低;随着SO2浓度增大,脱硝率出现极值点;另外,添加剂NaHCO3/Ca(OH)2/Ca(ClO)2对NaClO2氧化吸收NOx和SO2均有增强作用.采用膜气体吸收技术,可实现烟气同时脱硫脱硝,具有一定应用潜力.

A Novel G-L membrane contactor was applied for SO2 and NOx removal from flue gas using NaClO2 seawater solution as absorbent, NaHCO3/Ca(OH)2/Ca(ClO)2 as additives. The effects of flow rate of flue gas and absorbent, SO2 content as well as concentration and pH of absorbent on desulfurization and denitrification efficiency were investigated. The results showed that increasing concentration or flow rate of absorbent and decreasing flow rate of flue gas or pH of absorbent could improve desulfurization and denitrification efficiency. NaHCO3/Ca(OH)2/Ca(ClO)2 as additives could facilitate the removing rate of NOx/SO2. It is indicated that membrane based gas absorption technique has potential application to achieve simultaneous desulfurization and denitrification.

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

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.Mohebi, S.M.Mousavi, S.Kiani. Modeling and simulation of sour gas membrane-absorption system: Influence of operational parameters on species removal [J]. Journal of Natural Gas Science and Engineering, 2009, 1(6): 195-204.
[3] Xueyan Sun, Fangang Meng, Fenglin Yang. Application of seawater to enhance SO2 removal from simulated flue gas through hollow fiber membrane contactor[J]. Journal of Membrane Science, 2008,312 (1-2):6-14.
[4] 陈颖,关毅鹏,张召才,郭春刚,刘国昌,李晓明.海水烟气脱硫膜吸收单元及工艺研究[J]. 膜科学与技术, 2011,31(5):58-64.
[5] 陈颖,关毅鹏,刘国昌,等.膜吸收法海水烟气脱硫装置及其工艺[P].中国,发明专利:201010 572971.5.
[6] 陈颖, 张召才,郭春刚,等.一种新型高效单级或多级罐式气液接触膜吸收单元[P].中国,实用新型: 201020641558.5.2010-12-05.
[7] 陈颖,郭春刚,张召才,等.一种新型低气阻箱式气液接触膜吸收单元[P].中国,实用新型: 20 1020641 559.x. 2010-12-05.
[8] 王琼,胡将军,邹鹏.亚氯酸钠湿法烟气脱硫脱硝技术研究[J]电力环境保护,2005,21(2):4-6.
[9] 赵毅,刘凤,郭天祥,等.液相同时脱硫脱硝实验及反应特性[J]. 中国科学 E辑:技术科学.2009, 39(3):431-437.

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