Moments analysis of the zero length column method

被引：14

作者：

Brandani, S ^{[1
]}

Ruthven, DM ^{[1
]}

机构：

[1] UNIV MAINE,DEPT CHEM ENGN,ORONO,ME 04469

来源：

INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH | 1996年 / 35卷 / 01期

关键词：

D O I：

10.1021/ie950287m

中图分类号：

TQ [化学工业];

学科分类号：

0817 ;

摘要：

The first and second moments of the desorption curves of the zero length column (ZLC) response are derived for both intracrystalline diffusion and surface barrier models. Limiting solutions applicable to gaseous systems are obtained, and a simple relationship is developed to discriminate between the two transport models. The integral relationships are discussed and used to extract intracrystalline diffusivity values from experimental curves.

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收藏

页码：315 / 319

页数：5

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