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Concentration of sulphur compounds in the combustion chamber of a circulating fluidised-bed boiler

✍ Scribed by M.J Fernández; A Lyngfelt


Book ID
104135601
Publisher
Elsevier Science
Year
2001
Tongue
English
Weight
227 KB
Volume
80
Category
Article
ISSN
0016-2361

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✦ Synopsis


The concentration of sulphur compounds inside the combustion chamber of a 12 MW circulating ¯uidised-bed boiler was measured at different operating conditions: (a) bed of sand without limestone addition, and (b) three cases of air-staging in the presence of limestone. The data obtained with a sand bed show that most of the sulphur is released in the dense bed. In presence of limestone, a high concentration of SO 2 was seen below the secondary air inlet, when either normal or intensi®ed air-staging were used. In the same area reduced sulphur compounds, 300 ppm, were found under intensi®ed air-staging.


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