Assessment of sorbent reactivation by water hydration for fluidized bed combustion application

Journal Article · Thu Jun 15 04:00:00 EDT 2006 · Journal of Energy Resources Technology

DOI:https://doi.org/10.1115/1.2134734· OSTI ID:20772404

Montagnaro, Fabio; Salatino, Piero; Scala, Fabrizio; Wu, Yinghai; Anthony, Edward J; Jia, Lufei ^[1]

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1. Universita degli Studi di Napoli Federico II, Complesso Universitario del Monte di Sant'Angelo, Naples (Italy). Dipartimento di Chimica

Disposal of fluidized bed combustion (FBC) solid residues currently represents one of the major issues in FBC design and operation, and contributes significantly to its operating cost. This issue has triggered research activities on the enhancement of sorbent utilization for in situ sulfur removal. 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 the 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{sup o}C and 80{sup o}C and for curing times ranging from 15 minutes 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

• OSTI ID: 20772404
• Journal Information: Journal of Energy Resources Technology, Journal Name: Journal of Energy Resources Technology Journal Issue: 2 Vol. 128; ISSN 0195-0738; ISSN JERTD2
• Country of Publication: United States
• Language: English

Related Subjects

01 COAL, LIGNITE, AND PEAT
ADSORBENTS
CHEMICAL ACTIVATION
COAL
CURING
FLUIDIZED BED BOILERS
FLUIDIZED-BED COMBUSTION
HYDRATION