乙二醇脱盐的离子交换树脂电再生实验研究  

Experimental study on electrical regeneration of ion exchange resin for desalination of monoethylene glycol

作　　者：贺三[1] 张小卓 梁羽[1,2] 袁宗明 HE San;ZHANG Xiao-zhuo;LIANG Yu;YUAN Zong-ming(Southwest Petroleum University,Chengdu 610500,China;CNOOC International Ltd.,Beijing 100027,China)

机构地区：[1]西南石油大学,四川成都610500 [2]中国海洋石油国际有限公司,北京100027

出　　处：《现代化工》2020年第11期178-181,共4页Modern Chemical Industry

基　　金：西南石油大学油气藏地质与开发国家重点实验室开放基金(PLN0448)。

摘　　要：为简化深水气田乙二醇回收系统,使离子交换技术代替现有乙二醇脱盐工艺,提出了一种离子交换树脂电再生方法。通过布置在树脂床两侧的电极提供电场,在水流中发生电极反应与水解离,产生的H+和OH-使饱和树脂再生。与现有的电再生方法相比,该方法再生条件较简单,对于空间、淡水十分有限的海上平台更具适用性。实验结果表明,在74 V内对混床电再生1 h后,可脱除5.46 BV模拟乙二醇富液中31.26%的NaCl,离子交换树脂得到有效再生。重复脱盐-再生实验15个周期后,树脂性能仍保持良好。In order to simplify the monoethylene glycol reclamation/regeneration system in deep water gas field and make it more feasible for ion exchange to replace the existing monoethylene glycol desalination process,an electrical regeneration method for ion exchange resin is proposed.Electric field is provided by the electrodes installed on both sides of the resin bed.Electrode reaction and water dissociation occur in the water flow,and the H^+and OH^-generated make the exhausted resin regenerate.Compared with the existing electrical regeneration method,this method needs simpler regeneration conditions and is more applicable to offshore platforms with limited space and fresh water resource.Experimental results show that 31.26%of Na Cl in 5.46 BV simulated monoethylene glycol rich solution can be removed after the mixed bed has been electrically regenerated within 74 V for 1 hour,and the spent ion exchange resin can be effectively regenerated.The resin remains good performance after 15 cycles of repeated desalination-regeneration experiments.

关 键 词：离子交换 电再生 乙二醇 脱盐 深水天然气开发 

分 类 号：TQ051.8[化学工程]