Comparison of the Catalytic Activity of Bed Materials from the Combustion of Biomass and Waste Fuels in a Circulating Fluidized Bed Boiler toward NO Reduction by CO

2006 ◽  
Vol 20 (5) ◽  
pp. 1925-1932 ◽  
Author(s):  
Vesna Barišić ◽  
Pia Kilpinen ◽  
Mikko Hupa
Keyword(s):  
Catalytic Activity ◽  
Fluidized Bed ◽  
No Reduction ◽  
Circulating Fluidized Bed ◽  
Circulating Fluidized Bed Boiler ◽  
No Reduction By Co ◽  
Bed Materials

Mechanisms of Bed Material Agglomeration in a Petroleum Coke-Fired Circulating Fluidized Bed Boiler

1998 ◽  
Vol 120 (3) ◽  
pp. 215-218 ◽  
Author(s):  
B.-J. Skrifvars ◽  
M. Hupa ◽  
E. J. Anthony
Keyword(s):  
Fluidized Bed ◽  
Petroleum Coke ◽  
Circulating Fluidized Bed ◽  
Solid Particles ◽  
Circulating Fluidized Bed Boiler ◽  
Neck Growth ◽  
Heat Treated ◽  
Gas Atmosphere ◽  
Bed Materials ◽  
Bed Material

Petroleum coke firing in a circulating fluidized bed boiler has sometimes been reported to be associated with cyclone deposit problems and return leg plugging. In this paper, we present data which indicate that some of these problems may be due to the calcium-rich bed material used during the firing. We have earlier shown that calcium oxide may react with the flue gas components SO2 or CO2, causing neck growth between the solid particles. This neck growth between particles may lead to both deposits in the cyclone and plugging of the cyclone return leg. In this study we made use of a sintering testing method, based on compressive strength tests of heat-treated cylindrical pellets. Laboratory-prepared petroleum coke ash was mixed with two potential bed materials, limestone and dolomite, and sintering tests were performed in three different gas atmospheres. Significant differences were found between the mixtures as a function of both the gas atmosphere and temperature. We also performed thermogravimetric analyses on one of the bed materials, the limestone. Based on these results a mechanism for the formation of cyclone deposits and bed material agglomeration in the return leg was suggested.

The effect of circulating fluidized bed boiler load on the emission of mercury

2019 ◽  
Vol 92 (6) ◽  
pp. 1800-1806 ◽  
Author(s):  
Michał Wichliński ◽  
Grzegorz Wielgosz ◽  
Rafał Kobyłecki
Keyword(s):  
Fluidized Bed ◽  
Circulating Fluidized Bed ◽  
Circulating Fluidized Bed Boiler ◽  
Boiler Load

Modeling of solid fuels combustion in oxygen-enriched atmosphere in circulating fluidized bed boiler

2010 ◽  
Vol 91 (3) ◽  
pp. 290-295 ◽  
Author(s):  
Jaroslaw Krzywanski ◽  
Tomasz Czakiert ◽  
Waldemar Muskala ◽  
Robert Sekret ◽  
Wojciech Nowak
Keyword(s):  
Fluidized Bed ◽  
Circulating Fluidized Bed ◽  
Solid Fuels ◽  
Circulating Fluidized Bed Boiler

Combustion adjustment test of circulating fluidized bed boiler

2017 ◽  
Vol 124 ◽  
pp. 1505-1511 ◽  
Author(s):  
Guoli Qi ◽  
Songsong Zhang ◽  
Xuemin Liu ◽  
Jian Guan ◽  
Yongqiang Chang ◽  
...  
Keyword(s):  
Fluidized Bed ◽  
Circulating Fluidized Bed ◽  
Circulating Fluidized Bed Boiler ◽  
Adjustment Test
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