陶瓷膜净化1,4-丁炔二醇过程研究  

Study on Purification Process of 1,4-Butynediol by Ceramic Membrane

作　　者：宋锋[1] SONG Feng(Sinopec Great Wall Energy and Chemical Co.,Lrd.,Yinchuan Ningxia 750000,China)

机构地区：[1]中国石化长城能源(宁夏)化工有限公司,宁夏银川750000

出　　处：《辽宁化工》2024年第1期45-48,53,共5页Liaoning Chemical Industry

摘　　要：采用陶瓷膜超滤技术净化1,4-丁炔二醇(BYD),考察了不同操作条件对过滤通量的影响,分析了超滤过程的膜污染机制。结果表明:BYD溶液的超滤过程渗透通量的衰减可以分为两个阶段:第一阶段为急速下降阶段,通量下降占整个下降幅度的70%以上;第二阶段为拟稳定阶段,通量变化比较缓慢,下降幅度较小。超滤过程中的总阻力为膜固有阻力、浓差极化引起的阻力以及膜污染引起的阻力组成。其中膜固有阻力是引起通量衰减的主要因素,BYD在超滤过程中对膜的污染为可逆污染,可通过清洗过程消除膜污染。The ceramic membrane ultrafiltration technology was used to purify 1,4-butynediol(BYD).The influence of different operating conditions on the filtration flux was investigated,and the membrane fouling mechanism of the ultrafiltration process was analyzed.The results showed that the attenuation of permeate flux in the ultrafiltration process of BYD solution could be divided into two stages:the first stage was a rapid decline stage,and the flux decline accounted for more than 70%of the entire decline;the second stage was a quasi-stable stage,the amount of change was relatively slow,the decline was small.The total resistance in the ultrafiltration process was composed of the inherent resistance of the membrane,the resistance caused by concentration polarization and the resistance caused by membrane fouling.Among them,the inherent resistance of the membrane was the main factor causing the flux attenuation.The fouling of the membrane by BYD during the ultrafiltration process was reversible,and the membrane fouling could be eliminated through the cleaning process.

关 键 词：1 4-丁炔二醇 陶瓷膜 膜污染 阻力分析 

分 类 号：TQ201[化学工程—有机化工]