Modeling and model-based test method for chemisorption of formaldehyde in porous material

Jingjing Pei, Jianshun Zhang

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Chemisorption has been proved to be effective in removing many gas phase pollutants. There is a need to develop a simple and practical model to evaluate and to predict the performance of chemisorbent based air cleaners. In current study, two models with and without explicit consideration of intra-particle diffusion were developed and implemented for simulating chemisorption fixed bed. Chemical reaction is assumed to occur over sorbed phase contaminant. A standard test method was developed for performance evaluation, and to provide the model input parameters such as chemisorption capacity and reaction constant. The models are validated by comparison between the simulation and model-based test data of formaldehyde removal by chemisorbents. The pollutant transport and removal mechanism in the porous chemisorbent was analyzed through simulation. External mass transfer was found to have negligible effect comparing with internal mass transfer, and intra-pellet diffusion was the rate-limiting factor during the whole chemisorption process.

Original languageEnglish (US)
Title of host publication10th International Conference on Healthy Buildings 2012
Pages2601-2606
Number of pages6
StatePublished - Dec 1 2012
Event10th International Conference on Healthy Buildings 2012 - Brisbane, QLD, Australia
Duration: Jul 8 2012Jul 12 2012

Publication series

Name10th International Conference on Healthy Buildings 2012
Volume3

Other

Other10th International Conference on Healthy Buildings 2012
CountryAustralia
CityBrisbane, QLD
Period7/8/127/12/12

Keywords

  • Adsorption
  • Experimental method
  • Indoor air quality
  • Mass transfer
  • Simulation

ASJC Scopus subject areas

  • Civil and Structural Engineering

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