Liquid degassing using fine droplets and micro bubbles

  • Author / Creator
    Ji, Yiming
  • This project was initiated to study the H2S removal process from liquid sulfur and later extended to generic liquid degassing scenarios. Enersul HyspecTM Degassing Process was first field tested so that comparison could be made with new units to be engineered. Two new degassing units were modelled and lab-tested. The first one used fine poly-dispersed droplets, and the other added micro bubbles to the traditional approach of mechanical agitation. A single unit using one of the degassing techniques could achieve >90% efficiencies in a cost-effective manner. Higher degassing requirements can be met by operating multiple units in series. Degassing using mono-dispersed droplets was also studied to provide a better understanding of the contributing parameters for the poly-dispersed droplet system. Linear correlations of the Sherwood number in relation to the Peclet number were derived. Finally, kinetic parameters, the diffusion coefficient and reaction rate constants of H2S in liquid sulphur, were determined.

  • Subjects / Keywords
  • Graduation date
    Fall 2011
  • Type of Item
  • Degree
    Master of Science
  • DOI
  • License
    This thesis is made available by the University of Alberta Libraries with permission of the copyright owner solely for non-commercial purposes. This thesis, or any portion thereof, may not otherwise be copied or reproduced without the written consent of the copyright owner, except to the extent permitted by Canadian copyright law.