HOF-21 nanofillers incorporated mixed matrix membranes for high-performance N2/CH4 separation

渗透 渗透 选择性 聚酰亚胺 气体分离 溶解度 热扩散率 化学工程 扩散 基质(化学分析) 膜技术 吸附 材料科学 促进扩散 纳米颗粒 化学 色谱法 有机化学 纳米技术 工程类 催化作用 热力学 图层(电子) 物理 生物化学
作者
Jun Ma,Jiahe Zhang,Ye Yuan,Yunqi Zhou,Shenzhen Cong,Guangyu Xing,Jixiao Wang,Zhi Wang
出处
期刊:Journal of Membrane Science [Elsevier BV]
卷期号:677: 121626-121626 被引量:7
标识
DOI:10.1016/j.memsci.2023.121626
摘要

N2/CH4 separation membranes based on N2 preferential permeation can effectively reduce the recompression cost of CH4 gas and show promising application prospects in the field of natural gas purification. However, the performance of N2/CH4 separation membranes still needs to be improved. Here, we report a kind of mixed matrix membranes (MMMs) for N2/CH4 separation via using HOF-21 as nanofiller and 6FDA-DAM polyimide as polymer matrix. In this work, the effects of HOF-21 loading, feed side pressure and temperature based on membrane performance were explored, and finally performance variation of the MMMs with operation time was tested. The incorporated HOF-21 nanoparticles with the most probable pore size of about 3.6 Å can significantly increase the diffusion rate of smaller N2 molecules and enhance the N2/CH4 diffusivity selectivity of the membrane. In addition, compared with polyimide, HOF-21 exhibits almost the same dynamic adsorption of N2 and CH4, which can weaken the solubility of CH4 and enhance the N2/CH4 solubility selectivity of the membrane. When feed gas pressure was 0.2 MPa, the optimum membrane performance was achieved at the HOF-21 loading of 7 wt%, with N2 permeance of 5.13 GPU and N2/CH4 (50/50, vol%) selectivity of 20.52 at 298.15 K. Compared with N2 permeation and N2/CH4 selectivity of the 6FDA-DAM/PAN membrane, the MMMs increased by 67% and 54%, respectively, possessing potential applications in the field of N2 removal in CH4 purification.
最长约 10秒,即可获得该文献文件

科研通智能强力驱动
Strongly Powered by AbleSci AI
更新
PDF的下载单位、IP信息已删除 (2025-6-4)

科研通是完全免费的文献互助平台,具备全网最快的应助速度,最高的求助完成率。 对每一个文献求助,科研通都将尽心尽力,给求助人一个满意的交代。
实时播报
3秒前
酷波er应助冷艳的姿采纳,获得10
4秒前
4秒前
小蘑菇应助缥缈冷安采纳,获得10
4秒前
ccygpp199发布了新的文献求助10
4秒前
NexusExplorer应助佳里采纳,获得10
5秒前
淡淡的向雁完成签到,获得积分10
5秒前
6秒前
6秒前
Jasper应助LJJ采纳,获得10
8秒前
小啦啦3082发布了新的文献求助10
8秒前
8秒前
9秒前
甜甜的悲完成签到,获得积分20
9秒前
今后应助wbh采纳,获得10
9秒前
10秒前
妖妖灵完成签到,获得积分20
10秒前
加油干发布了新的文献求助10
10秒前
彭于晏应助xuan采纳,获得10
10秒前
甜甜的悲发布了新的文献求助10
11秒前
gwenjing发布了新的文献求助10
12秒前
wsj发布了新的文献求助10
14秒前
14秒前
量子星尘发布了新的文献求助10
14秒前
张金蝶发布了新的文献求助10
14秒前
jinzhen发布了新的文献求助10
14秒前
文献发布了新的文献求助30
15秒前
太牛的GGB完成签到,获得积分20
15秒前
16秒前
穿裤子的云完成签到,获得积分10
17秒前
17秒前
今后应助科研通管家采纳,获得10
19秒前
SciGPT应助科研通管家采纳,获得10
19秒前
SYLH应助科研通管家采纳,获得10
19秒前
科研通AI5应助科研通管家采纳,获得10
19秒前
余烬22完成签到,获得积分10
19秒前
CAOHOU应助科研通管家采纳,获得10
19秒前
彭于晏应助科研通管家采纳,获得10
19秒前
CAOHOU应助科研通管家采纳,获得10
19秒前
科研通AI5应助科研通管家采纳,获得10
19秒前
高分求助中
A new approach to the extrapolation of accelerated life test data 1000
ACSM’s Guidelines for Exercise Testing and Prescription, 12th edition 500
‘Unruly’ Children: Historical Fieldnotes and Learning Morality in a Taiwan Village (New Departures in Anthropology) 400
Indomethacinのヒトにおける経皮吸収 400
Phylogenetic study of the order Polydesmida (Myriapoda: Diplopoda) 370
基于可调谐半导体激光吸收光谱技术泄漏气体检测系统的研究 350
Robot-supported joining of reinforcement textiles with one-sided sewing heads 320
热门求助领域 (近24小时)
化学 材料科学 医学 生物 工程类 有机化学 生物化学 物理 内科学 纳米技术 计算机科学 化学工程 复合材料 遗传学 基因 物理化学 催化作用 冶金 细胞生物学 免疫学
热门帖子
关注 科研通微信公众号,转发送积分 3989334
求助须知:如何正确求助?哪些是违规求助? 3531428
关于积分的说明 11253936
捐赠科研通 3270119
什么是DOI,文献DOI怎么找? 1804887
邀请新用户注册赠送积分活动 882087
科研通“疑难数据库(出版商)”最低求助积分说明 809173