Chemical and Biomolecular Engineering Faculty Research

Title

New Method for Monitoring of Adsorption Column Saturation and Regeneration I: Demonstration of the Measurement Principle

Document Type

Article

Publication Date

2002

Abstract

A new method suitable for the on-line monitoring of adsorption column saturation/regeneration cycles was developed based on the discovery that the electrical resistance of adsorbents changes dramatically upon adsorption and returns to its original value upon desorption, and that this change can be measured reliably. The phenomenon was demonstrated on four different adsorbent/adsorbate systems, on both single particles and in a packed bed between parallel plates. The observed phenomenon was studied on the carbon/CO2 system in more detail, because of the availability of extensive literature data. It was found that the resistance change in this system correlated with the amount of CO2 adsorbed. The correlation was used to construct an adsorption isotherm based on resistance change data.

Publication Title

Chemical Engineering Communications

Volume

189

Issue

3

First Page

352

Last Page

371