Number of the records: 1
Realizing the Impact of the Intermediate Layer Structure on the CO2/CH4 Separation Performance of Carbon Molecular Sieving Membranes: Insights from Experimental Synthesis and Molecular Simulation.
- 1.
SYSNO ASEP 0541781 Document Type J - Journal Article R&D Document Type Journal Article Subsidiary J Článek ve WOS Title Realizing the Impact of the Intermediate Layer Structure on the CO2/CH4 Separation Performance of Carbon Molecular Sieving Membranes: Insights from Experimental Synthesis and Molecular Simulation. Author(s) Setničková, Kateřina (UCHP-M) RID, ORCID, SAI
Huang, T.-C. (TW)
Wang, Ch.-T. (TW)
Lin, Y.-Ch. (TW)
Lee, S.H. (TW)
Zhuang, G.-L. (TW)
Tung, K.-L. (TW)
Tseng, H.-H. (TW)
Uchytil, Petr (UCHP-M) RID, SAIArticle number 118627 Source Title Separation and Purification Technology. - : Elsevier - ISSN 1383-5866
Roč. 269, 15 AUG (2021)Number of pages 10 s. Language eng - English Country GB - United Kingdom Keywords gas separation ; carbon membrane ; molecular sieve Subject RIV CI - Industrial Chemistry, Chemical Engineering OECD category Chemical process engineering R&D Projects GC19-23760J GA ČR - Czech Science Foundation (CSF) Method of publishing Limited access Institutional support UCHP-M - RVO:67985858 UT WOS 000652641600003 EID SCOPUS 85104287819 DOI 10.1016/j.seppur.2021.118627 Annotation This work is a continuation of our previous study investigating the role of the intermediate layer in carbon molecular sieve membrane (CMSM) formation and its impact on the gas separation performance. Herein, the effect of key preparation variables of CMS/TiO2 membrane prepared from the polyetherimide (PEI) precursor on the membrane’s structure and CO2/CH4 separation quality was studied. A set of CMS/TiO2/Al2O3 membranes produced under different conditions (pH of the sol-gel for the intermediate TiO2 layer preparation, the TiO2 interlayer thickness and the carbon separation layer thickness) was prepared, characterized by the AFM, FE-SEM and EDXS methods and tested for CO2/CH4 separation efficiency. In addition, a molecular simulation was applied to investigate the effect of intermediate TiO2 layer. All prepared membranes had good separation quality (the separation factor between 37 and 65). The best results for membranes with the thickest TiO2 interlayer prepared at pH = 5 were identified, notably, membrane samples with the thin defect free carbon separation layer achieved the best balance of permeance vs. selectivity and exceeded the Robeson upper bound. The molecular simulation results support the finding of the intermediate layer plays a vital role for the synthesis of gas separation membranes. Workplace Institute of Chemical Process Fundamentals Contact Eva Jirsová, jirsova@icpf.cas.cz, Tel.: 220 390 227 Year of Publishing 2022 Electronic address http://hdl.handle.net/11104/0319551
Number of the records: 1