Methods for measuring the concentrations of SO2, and of gaseous reduced sulphur compounds in the combustion chamber of a circulating fluidized bed boiler

2000 ◽  
Vol 78 (6) ◽  
pp. 1138-1144 ◽  
Author(s):  
Maríaa Joséa Fernández ◽  
Håkan Kassman ◽  
Anders Lyngfelt
Keyword(s):  
Combustion Chamber ◽  
Fluidized Bed ◽  
Circulating Fluidized Bed ◽  
Circulating Fluidized Bed Boiler ◽  
Sulphur Compounds ◽  
Reduced Sulphur Compounds

Gas Concentration Measurements in the Combustion Chamber of the 235 MWe Circulating Fluidized Bed Boiler Turow No. 3

2005 ◽  
Author(s):  
E.-U. Hartge ◽  
M. Fehr ◽  
J. Werther ◽  
T. Ochodek ◽  
P. Noskievic ◽  
...  
Keyword(s):  
Combustion Chamber ◽  
Fluidized Bed ◽  
Circulating Fluidized Bed ◽  
Wall Layer ◽  
Front Wall ◽  
Circulating Fluidized Bed Boiler ◽  
Penetration Length ◽  
Cross Sectional ◽  
Gas Concentration ◽  
High Concentrations

Local measurements of concentrations of O2, CO2, CO, NO and SO2 were carried out inside the 235 MWe circulating fluidized bed boiler no. 3 Turow power plant. The combustion chamber had a cross-sectional area of 21.1 × 9.9 m2 and a height of 43 m. Water-cooled probes with a length of 4.7 m were used to take samples from inside the boiler. 20 ports in 5 different heights were used to introduce the probes. The penetration depth inside the boiler was up to 3 m. The sampled gas was led to online analyzers. Even though the number of ports and the penetration length was not sufficient to get a full 3-D mapping of the concentrations the measured horizontal and vertical gas concentration profiles of NO, CO, CO2, O2 and SO2 clearly indicate a core/annulus structure with a wall layer thickness of about 0.5–1 m. Significant differences are observed between gas concentrations near the front wall and those near the rear wall which indicate an uneven distribution of fuel. One consequence is the formation of plumes with high concentrations of CO, NO, CO2 and SO2 near the front wall which extend up to the exit region. The fact that nevertheless the stack emissions are still below the legal limits may be attributed to the excellent performance of the cyclones as gas mixers and post combustion reactors.

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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