Ash Properties of Ilmenite Used as Bed Material for Combustion of Biomass in a Circulating Fluidized Bed Boiler

2014 ◽  
Vol 28 (12) ◽  
pp. 7672-7679 ◽  
Author(s):  
Angelica Corcoran ◽  
Jelena Marinkovic ◽  
Fredrik Lind ◽  
Henrik Thunman ◽  
Pavleta Knutsson ◽  
...  
Keyword(s):  
Fluidized Bed ◽  
Circulating Fluidized Bed ◽  
Circulating Fluidized Bed Boiler ◽  
Bed Material

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.

Using an oxygen-carrier as bed material for combustion of biomass in a 12-MWth circulating fluidized-bed boiler

Fuel ◽  
2013 ◽  
Vol 113 ◽  
pp. 300-309 ◽  
Author(s):  
Henrik Thunman ◽  
Fredrik Lind ◽  
Claes Breitholtz ◽  
Nicolas Berguerand ◽  
Martin Seemann
Keyword(s):  
Fluidized Bed ◽  
Circulating Fluidized Bed ◽  
Oxygen Carrier ◽  
Circulating Fluidized Bed Boiler ◽  
Bed Material

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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