工业烟气碳捕集控制用超净除尘滤料研究  

Study on Ultra Clean Filter Material for Carbon Capture of Industrial Flue Gas

作　　者：柳静献[1] 郭颖赫 赫伟东 LIU Jingxian;GUO Yinghe;HE Weidong(Filter Test Center of Northeastern University,Shenyang 110819)

机构地区：[1]东北大学滤料检测中心,沈阳110819

出　　处：《工业安全与环保》2021年第S01期70-74,共5页Industrial Safety and Environmental Protection

基　　金：国家十三五重点专项(2017YFC0211801,2016YFC0203701,2016YFC0801605);辽宁省兴辽人才计划(XLYC2002091);辽宁省重点研发计划(2019JH2/10100004);浙江省重点研发计划(2020C03089);沈阳市项目(20-206-4-09)。

摘　　要：工业烟气碳捕集是实现碳中和目标的重要技术手段,而作为碳捕集主要对象的工业烟气,其颗粒物浓度数值的标准要求极其严格,目前用作超低排放控制的常规针刺毡及其覆膜滤料仍无法满足碳捕集纯净度的要求。基于静电纺丝制备的纳米纤维膜低阻高效的优点,其在非严苛环境中已获得应用。对直接纺丝法、固体胶膜热压法、共纺一步成型法制备的纳米纤维膜与基材的复合滤料进行综合评估,结果表明:共纺一步成型法明显优于其它覆膜方法,制备的纳米纤维膜复合滤料在过滤效率、阻力、覆膜牢度、拉伸强度等方面具有较大优势。Carbon capture from industrial emissions is an important technical means to achieve the goal of carbon neutrality.However,the requirements for industrial emissions used for carbon capture are very strict,and the widely used needle felt filter/membrane coated needle felt filter for the low emission cannot meet the purify requirements of carbon capture.The nanofiber membrane produced by electrospinning technology has attracted more attention with its high filtration efficiency and low pressure drop and has been widely applied in non-strict filtration field.In this paper,the composite filter materials of nanofiber membrane and substrate prepared by direct spinning,hot pressing of solid film and one-step co-electrospinning molding are comprehensively evaluated.The results show that the one-step co-electrospinning method is superior to other membrane covering methods,and the nanofiber membrane composite filter material has great advantages in filtration efficiency,resistance,membrane covering fastness and tensile strength.

关 键 词：碳捕集 纳米纤维膜 复合过滤材料 覆膜牢度 过滤性能 共纺 工业烟气 

分 类 号：X701.2[环境科学与工程—环境工程]