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Transport and separation characterization of supported PEI-based carbon molecular sieve membranes.

机译：支持的PEI基碳分子筛膜的运输和分离特性。

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摘要

Supported carbon molecular sieve membranes (CMSMs) have been prepared by the pyrolysis of a polyetherimide precursor. The single gas transport properties of four different batches of USFILTER membranes were measured. For a few cases transport measurement with binary gas mixtures as well as stability tests were also conducted. This study indicated that the initial substrates and the sealing technique have very important effects on the performance of CMSMs.;The transport properties of different batches of two types of M&PT hollowfibers were measured. The hollowfibers were characterized by SEM and micropore analysis to relate their structures to their transport characteristics. The 4-mm hollowfibers exhibited a somewhat better performance than the 1-mm. Micropore analysis of pyrolyzed PEI powders was conducted to relate the transport properties of CMSMs to their structures and to find the optimal conditions for the carbonization step.
机译：通过聚醚酰亚胺前体的热解制备了负载的碳分子筛膜（CMSM）。测量了四个不同批次的USFILTER膜的单气体传输性能。在少数情况下，还使用二元混合气进行运输测量以及稳定性测试。研究表明，初始基材和密封技术对CMSMs的性能有非常重要的影响。；测量了不同批次的两种M＆PT中空纤维的传输性能。通过SEM和微孔分析对中空纤维进行表征，以将其结构与其传输特性相关联。 4毫米中空纤维表现出比1毫米更好的性能。进行了热解PEI粉末的微孔分析，以将CMSM的传输特性与其结构联系起来，并找到了碳化步骤的最佳条件。

著录项

  • 作者

    Jahangiri, Maryam.;

  • 作者单位

    University of Southern California.;

  • 授予单位 University of Southern California.;
  • 学科 Engineering Chemical.
  • 学位 M.S.
  • 年度 2000
  • 页码 57 p.
  • 总页数 57
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

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