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Alkali-Alumina Sorbents for Regenerable SO_2 Removal in Fluidized-Coal Combustion

Gavalas, George R. and Weston, Theresa A. and Stephanopoulos, Maria F. (1985) Alkali-Alumina Sorbents for Regenerable SO_2 Removal in Fluidized-Coal Combustion. In: Proceedings of the 8th International Conference on Fluidized-Bed Combustion. Department of Energy , Oak Ridge, TN, pp. 1178-1185. http://resolver.caltech.edu/CaltechAUTHORS:20151106-090106075

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Abstract

Sodium and sodium-lithium oxides supported on porous alumina have been investigated as regenerable SO_2 sorbents for fluidized coal combustion. In adsorption the oxides are converted to sulfates. In regeneration, carried out by reduction with CO, the sulfates are converted back to oxides while sulfur is removed in elemental form (S_2), SO_2 and COS. The transient composition of sorbent and gaseous products was measured in a thermogravimetric analyzer and a packed-bed microreactor in order to delineate the basic chemistry of regeneration and determine conditions that maximize the yield of elemental sulfur.


Item Type:Book Section
ORCID:
AuthorORCID
Gavalas, George R.0000-0003-1468-6835
Additional Information:© 1985 National government publication. This work was supported by the National Science Foundation, Chemical and Process Engineering Division.
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Record Number:CaltechAUTHORS:20151106-090106075
Persistent URL:http://resolver.caltech.edu/CaltechAUTHORS:20151106-090106075
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:61932
Collection:CaltechAUTHORS
Deposited By: Ruth Sustaita
Deposited On:06 Nov 2015 18:16
Last Modified:26 Sep 2017 20:34

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