摘要
M-MOF-74(M=Mg,Co,Ni)材料在CO_(2)捕集方面具有优异的性能,但是粉末状的MOF-74材料直接应用在实际工业中会不可避免地导致热/质量损失、流体压降、堵塞管道、回收困难等问题。为了满足“双碳”目标的要求,实现CO_(2)的高效捕集,开发了一种复合黏结剂的成型工艺,将M-MOF-74(M=Mg,Co,Ni)材料加工成3 mm左右球形颗粒,并测试了成型颗粒的机械强度、热稳定性、CO_(2)/N_(2)的吸附分离性能。结果表明:成型颗粒的机械强度在23~26 N,能够满足工业使用寿命标准,且具有良好的热稳定性;成型颗粒的CO_(2)吸附性能下降幅度小于10%,CO_(2)/N_(2)(15/85,体积比)混合气的动态分离实验证明了三种成型颗粒的分离效果优异。这些球体吸附剂性能符合气体分离工业的标准,能够进一步减少在CO_(2)捕获过程中的能耗和运行成本,相信这种研究成果可大大加快MOF商业化的进程。
M-MOF-74(M=Co,Mg,Ni)material has excellent performance in CO_(2) capture,but the direct application of powdered MOF-74 material in practical industry will inevitably lead to problems such as heat/mass loss,fluid pressure drop,pipeline blockage,recovery difficulty and so on.In order to meet the requirements of“Double Carbon”goal and achieve efficient CO_(2) capture,a composite binder shaping process was developed.M-MOF-74(M=Mg,Co,Ni)material was processed into spherical particles about 3 mm in size,and the mechanical strength,thermal stability,and CO_(2)/N_(2) adsorption and separation performance of the granulated particles were tested.The results show that the mechanical strength of the shaped particles is 23~26 N,which can meet the industrial service life standard and has good thermal stability;the CO_(2) adsorption performance of the granulated particles decreases by less than 10%.The dynamic separation ex-periment of CO_(2)/N_(2)(15/85,volume ratio)mixture proved the excellent separation effect of the three granulated particles.The performance of these spherical adsorbents meets the standards of gas separation industry and can further reduce the energy consumption and operation cost in the process of CO_(2) capture.It is believed that this shaping method will greatly accelerate the com-mercialization of MOF.
作者
刘小华
陈杨
李金龙
卢春宇
王毅
李立博
李晋平
LIU Xiaohua;CHEN Yang;LI Jinlong;LU Chunyu;WANG Yi;LI Libo;LI Jinping(College of Chemical Engineering and Technology,Taiyuan University of Technology,Taiyuan 030024,China;Shanxi Key Laboratory of Gas Energy Efficient and Clean Utilization,Taiyuan University of Technology,Taiyuan 030024,China;Key Laboratory of Coal Science and Technology,Taiyuan University of Technology,Taiyuan 030024,China)
出处
《太原理工大学学报》
CAS
北大核心
2022年第3期474-481,共8页
Journal of Taiyuan University of Technology
基金
国家自然科学基金资助项目(22090062,21922810,21908155)。
