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Assessment of Sorbent Reactivation by Water Hydration for Fluidized Bed Combustion Application

[+] Author Affiliations
Fabio Montagnaro, Piero Salatino

Università degli Studi di Napoli Federico II, Napoli, Italy

Fabrizio Scala

Istituto di Ricerche sulla Combustione - CNR, Napoli, Italy

Yinghai Wu, Edward Anthony, Lufei Jia

Natural Resources Canada, Ottawa, ON, Canada

Paper No. FBC2003-110, pp. 429-439; 11 pages
doi:10.1115/FBC2003-110
From:
  • 17th International Conference on Fluidized Bed Combustion
  • 17th International Conference on Fluidized Bed Combustion
  • Jacksonville, Florida, USA, May 18–21, 2003
  • Conference Sponsors: Advanced Energy Systems
  • ISBN: 0-7918-3680-0 | eISBN: 0-7918-3675-4
  • Copyright © 2003 by ASME

abstract

Disposal of FBC solid residues currently represents one of the major issues in FBC design and operation, and contributes significantly to FBC operating cost. This issue has triggered research activities on the enhancement of sorbent utilization for in-situ sulfur uptake. The present study addresses the effectiveness of the reactivation by liquid water hydration of FB spent sorbents. Two materials are considered in the study, namely bottom ash from the operation of a full-scale utility FB boiler and the raw commercial limestone used in the same boiler. Hydration-reactivation tests were carried out at temperatures of 40°C and 80°C and for curing times ranging from 15min to 2d, depending on the sample. The influence of hydration conditions on the enhancement of sulfur utilization has been assessed. A combination of methods has been used to characterize the properties of liquid water-hydrated materials.

Copyright © 2003 by ASME

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