聚醚酰亚胺混合导体甲烷氢分离膜的研制

IF 1.3 4区 材料科学 Q4 MATERIALS SCIENCE, MULTIDISCIPLINARY
Y. Alqaheem, Abdulwahab Alhindi
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引用次数: 1

摘要

聚合物膜可以为氢气回收等气体分离提供一种节能的解决方案。然而,膜的性能受到渗透性和选择性之间的权衡现象的限制。填料如沸石的加入可以克服这一限制,但由于沸石的结块,膜很难再生。本研究选择了BaCe0.9Y0.1O3 -δ (BCY)和La0.6Sr0.4Co0.2Fe0.8O3-δ (LSCF)等混合导体作为填料,因为它们的团聚效应较小。将填料加入到聚醚酰亚胺中,并进行甲烷氢分离试验。结果表明,由于形成过多的孔洞,BCY与PEI不相容。然而,加入5 wt%的LSCF,氢渗透率翻倍,选择性从9提高到16。表征技术显示没有颗粒团聚或表面缺陷的迹象。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Development of polyetherimide–mixed conductor membranes for hydrogen separation from methane
Polymeric membranes can provide an energy-efficient solution for gas separation such as hydrogen recovery. Nevertheless, the membrane performance is limited by the trade-off phenomena between permeability and selectivity. The addition of fillers such as zeolite can overcome this constraint however, it is difficult to reproduce the membrane due to the agglomeration of zeolite. In this work, mixed conductors such as BaCe0.9Y0.1O3–δ (BCY) and La0.6Sr0.4Co0.2Fe0.8O3-δ (LSCF) had been selected as fillers because they have a less agglomeration effect. The fillers were added to polyetherimide and tested for hydrogen separation from methane. Results show that BCY was not compatible with PEI due to the formation of excessive holes. However, adding 5 wt% of LSCF doubled the hydrogen permeance with a boost in selectivity from 9 to 16. Characterization techniques showed no sign of particle agglomeration or surface defects.
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来源期刊
Emerging Materials Research
Emerging Materials Research MATERIALS SCIENCE, MULTIDISCIPLINARY-
CiteScore
4.50
自引率
9.10%
发文量
62
期刊介绍: Materials Research is constantly evolving and correlations between process, structure, properties and performance which are application specific require expert understanding at the macro-, micro- and nano-scale. The ability to intelligently manipulate material properties and tailor them for desired applications is of constant interest and challenge within universities, national labs and industry.
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