Effect of particle size distribution on the behavior of alkali and alkaline earth metals in solid-recovered fuel combustion in a circulating fluidized bed

2018 ◽  
Vol 191 (3) ◽  
pp. 538-554
Author(s):  
Jonatan Skagersten ◽  
Loay Saeed ◽  
Francois-Xavier Sarda ◽  
Mika Järvinen
Keyword(s):  
Particle Size ◽  
Particle Size Distribution ◽  
Size Distribution ◽  
Fluidized Bed ◽  
Alkaline Earth ◽  
Circulating Fluidized Bed ◽  
Fuel Combustion ◽  
Alkaline Earth Metals ◽  
Effect Of Particle Size

Prediction of Sorbent Performance in a Circulating Fluidized Bed Boiler Based on Petrographic Properties

2006 ◽  
Vol 129 (2) ◽  
pp. 565-571 ◽  
Author(s):  
Peter L. Rozelle ◽  
Sarma V. Pisupati ◽  
Alan W. Scaroni
Keyword(s):  
Particle Size ◽  
Particle Size Distribution ◽  
Size Distribution ◽  
Fluidized Bed ◽  
Circulating Fluidized Bed ◽  
Bottom Ash ◽  
Circulating Fluidized Bed Boiler ◽  
Operating Data ◽  
Full Load ◽  
Full Load Operation

A method for prediction of sorbent consumption is presented here and has been developed based on plant operating data for a boiler in which several limestone and dolostone products were tested under similar firing conditions. The method considers the characteristic partitioning of calcium and sulfur between the flyash and bottom ash stream for the boiler, the feed particle size distribution of the sorbent, and petrographic properties of the sorbents. The predictions of sorbent usage were compared to plant operating data for five sorbents, of two distinct petrographic types. The plant operating data used featured full load operation. The five sorbents tested were all from Pennsylvania, and each contained greater than 40wt.% CaO. In four of the five cases, the predicted sorbent usage was within 10wt.% of the average full load sorbent usage by the boiler.

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