PREDICTIONS OF CMA UTILIZATION FOR INSITU SO2 REMOVAL IN UTILITY BOILERS

被引:9
作者
SIMONS, GA
机构
[1] Physical Sciences Inc., Andover, MA
关键词
D O I
10.1016/0921-3449(92)90014-S
中图分类号
X [环境科学、安全科学];
学科分类号
08 ; 0830 ;
摘要
Highly porous grains of solid CMA have been generated by Levendis (1990). Since CMA is water soluble, various CMA/H2O solutions may be atomized to various size droplets and subjected to various temperature histories to achieve sorbents with virtually any size and porosity. To assist in determining the optimum size and porosity, the studies of Simons (1988) were extended. Particles in the 5 to 10 mum radius range with porosities (theta) greater than 90% clearly yield utilizations which are favorable to in-situ SO2 removal. These particles are considerably larger than those required for limestone (1 to 3 mum) injection and are readily achievable with high pressure liquid atomizers.
引用
收藏
页码:161 / 170
页数:10
相关论文
共 15 条
[1]  
Beittel, Gooch, Dismukes, Muzio, Studies of sorbent calcination and SO<sub>2</sub>-sorbent reactions in a pilot-scale furnace, Control Technologies, (1984)
[2]  
Bhatia, Perlmutter, The effect of pore structure on fluid-solid reactions: application to the SO<sub>2</sub>-lime reaction, AIChE J., 27, (1981)
[3]  
Borgwardt, Bruce, Effect of specific surface area on the reactivity of CaO with SO<sub>2</sub>, AIChE J., 32, (1986)
[4]  
Borgwardt, Harvey, Properties of carbonate rocks related to SO<sub>2</sub> reactivity, Environ. Sci. Technol., 6, (1972)
[5]  
Borgwardt, Roache, Bruce, Method for variation of grain size in studies of gas-solid reactions involving CaO, I&EC, Fundamentals, 25, (1986)
[6]  
Hartman, Coughlin, Reaction of sulfur dioxide with limestone and the grain model, AIChE J., 22, (1976)
[7]  
Hartman, Coughlin, Influence of porosity of calcium carbonates on their reactivity with sulfur dioxide, Ind. Eng. Chem., Process Des. Dev., 17, (1978)
[8]  
Keairns, Et al., Fluidized bed combustion process evaluation, phase II: pressurized fluidized bed coal combustion development, EPS-650/2-7S-027C, NTIS PB-2460116, pp. 55-71, (1975)
[9]  
Roman, Muzio, McElroy, Bowers, Gallaspy, Flow reactor study of calcination and sulfation, Control Technologies, (1984)
[10]  
Simons, The pore tree structure of porous char., Combustion Institute, 19th Symposium (International) on Combustion Haifa, (1982)