ZIF-8 membranes for highly efficient SF6 recovery

被引：0

作者：

Cao, Changdie ^{[1
]}

Zhao, Yali ^{[1
]}

Dai, Yurun ^{[1
,4
]}

Wei, Yanying ^{[1
,3
]}

Xia, Qibin ^{[1
]}

Wang, Haihui ^{[2
]}

机构：

[1] South China Univ Technol, Sch Chem & Chem Engn, State Key Lab Pulp & Paper Engn, Guangdong Prov Key Lab Green Chem Prod Technol, Guangzhou 510640, Peoples R China

[2] Tsinghua Univ, Dept Chem Engn, Beijing Key Lab Membrane Mat & Engn, Beijing 100084, Peoples R China

[3] Quzhou Membrane Mat Innovat Inst, Quzhou 324000, Peoples R China

[4] China Southern Power Grid Co Ltd, Elect Power Res Inst EHV Transmiss Co, Guangzhou 510405, Peoples R China

来源：

SEPARATION AND PURIFICATION TECHNOLOGY | 2025年 / 369卷

关键词：

Gas separation; MOF membrane; Sulfur hexafluoride; ZIF-8; METAL-ORGANIC FRAMEWORKS; ZEOLITE MEMBRANES; MOF MEMBRANES; GAS; SEPARATION; PERMEATION;

D O I：

10.1016/j.seppur.2025.133005

中图分类号：

TQ [化学工业];

学科分类号：

0817 ;

摘要：

Sulphur hexafluoride (SF6) is a commonly utilized insulation gas in electrical equipment because to its superior insulating capabilities and arc extinguishing characteristics, which holds high recycling value and necessity from the economic and environmental perspective. However, traditional method of recovering SF6 based on cryogenic distillation is energy consuming, alternative separation technic is urgently required. Herein, a variety of ZIF-8 membranes fabricated via fast current-driven synthesis are proposed for N2/SF6 separation. For a typical insulation gas in gas insulated switchgear comprising 70 % N2 and 30 % SF6, the ZIF-8 membrane presents a N2/SF6 selectivity up to 809 and a high N2 permeance of 557 GPU with outstanding pressure resistance, which indicates that the ZIF-8 membrane separation would be an excellent new route for highly efficient SF6 recovery.

引用

页数：8

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