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Effects of fuel type and operating conditions on SO 2 emission in fluidized bed combustion
Author(s) -
Zhang J. Q.,
Jones W. E.,
Lav I. T.,
Friedrich F. D.
Publication year - 1992
Publication title -
the canadian journal of chemical engineering
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.404
H-Index - 67
eISSN - 1939-019X
pISSN - 0008-4034
DOI - 10.1002/cjce.5450700523
Subject(s) - sorbent , fluidized bed combustion , combustion , molar ratio , fluidized bed , materials science , solid fuel , sulfur , range (aeronautics) , mineralogy , waste management , analytical chemistry (journal) , metallurgy , chemistry , composite material , environmental chemistry , adsorption , engineering , catalysis , organic chemistry
The SO 2 emission from six fluidized bed combustors was examined. Approximately 71.5% of the fuel sulphur was found to be emitted as SO 2 in sorbent‐free tests. General observations on the effects of Ca/S molar ratio, limestone size and recycle systems are presented. The effects of limestone type and superficial velocity were found to be insignificant, as was the effect of bed temperature in the range 800‐950°C. In tests with fine solid and liquid fuels, circulating FBC's were found to provide significantly better sulphur capture than bubbling FBC's.