Research Article

Optimization of Oxygen Transfer through Membrane Diffusers for Biological Sweetening of Biogas

  1. G. Rodriguez1,
  2. A. D. Dorado1,
  3. A. Bonsfills1,
  4. D. Gabriel2,
  5. X. Gamisans1,*

Article first published online: 7 FEB 2013

DOI: 10.1002/ceat.201200603

Issue

Chemical Engineering & Technology

Chemical Engineering & Technology

Volume 36, Issue 3, pages 513–518, March, 2013

Additional Information

How to Cite

Rodriguez, G., Dorado, A. D., Bonsfills, A., Gabriel, D. and Gamisans, X. (2013), Optimization of Oxygen Transfer through Membrane Diffusers for Biological Sweetening of Biogas. Chem. Eng. Technol., 36: 513–518. doi: 10.1002/ceat.201200603

Author Information

  1. 1

    Universitat Politécnica de Catalunya, Department of Mining Engineering and Natural Resources, Manresa, Spain

  2. 2

    Universitat Autónoma de Barcelona, Department of Chemical Engineering, Barcelona, Spain

*Universitat Politécnica de Catalunya, Department of Mining Engineering and Natural Resources, Manresa, Spain

Publication History

  1. Issue published online: 25 FEB 2013
  2. Article first published online: 7 FEB 2013
  3. Manuscript Accepted: 17 JAN 2013
  4. Manuscript Revised: 12 JAN 2013
  5. Manuscript Received: 6 NOV 2012

Funded by

  • Comision Interministerial de Ciencia y Tecnologia (CICYT)
  • European Regional Development Fund (ERDF-EC). Grant Number: 2009-14338-C03-03

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Keywords:

  • Biofiltration;
  • Biogas;
  • Membrane diffuser;
  • Nonaqueous phase;
  • Oxygen transfer

Abstract

Biological techniques for the removal of gaseous pollutants such as hydrogen sulfide (H2S) have proved to be effective, environmentally friendly, and economically viable. However, when high concentrations of H2S are treated, the process is severely restricted by the oxygen deficit in the liquid phase. The oxygen transfer efficiency provided by a membrane diffuser is evaluated under typical pressure and salinity conditions used for the biological treatment of H2S in biogas. The optimal operating parameters for enhanced oxygen transfer were determined. The addition of pure oxygen with a membrane diffuser to increase the oxygen transfer rate and the use of a nonaqueous phase to improve oxygen transfer in a bioscrubber system are also evaluated.

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