MODELING OF THE SIMULTANEOUS CALCINATION, SINTERING AND SULFATION OF LIMESTONE AND DOLOMITE

被引:28
作者
ALVFORS, P
SVEDBERG, G
机构
[1] Department of Heat Technology, Royal Institute of Technology, Stockholm
关键词
D O I
10.1016/0009-2509(92)80308-Y
中图分类号
TQ [化学工业];
学科分类号
0817 ;
摘要
The partially sintered spheres model, describing the sulphation of a sorbent particle consisting of CaO and inert content, is incorporated in a model taking into account the calcination of the limestone or dolomite and the sintering of the nascent oxide resulting from the calcination. The model is applicable, for example, to the sulphation of limestone or dolomite when injected into the furnace of a pulverized coal-fired boiler. The simulations show a temperature optimum in the calcium conversion. Increased calcium conversion is found when inert material is present. Satisfactory experimental verifications of the model are shown.
引用
收藏
页码:1903 / 1912
页数:10
相关论文
共 18 条
[1]   MODELING OF THE SULFATION OF CALCINED LIMESTONE AND DOLOMITE - A GAS-SOLID REACTION WITH STRUCTURAL-CHANGES IN THE PRESENCE OF INERT SOLIDS [J].
ALVFORS, P ;
SVEDBERG, G .
CHEMICAL ENGINEERING SCIENCE, 1988, 43 (05) :1183-1193
[2]  
Anderson P. J., 1965, P BRIT CERAMIC SOC, V3, P33
[3]   EFFECTS OF WATER VAPOUR ON SINTERING OF MGO [J].
ANDERSON, PJ ;
MORGAN, PL .
TRANSACTIONS OF THE FARADAY SOCIETY, 1964, 60 (4975) :930-&
[4]   USE OF LANGMUIR METHOD FOR KINETIC STUDIES OF DECOMPOSITION REACTIONS - CALCITE (CACO3) [J].
BERUTO, D ;
SEARCY, AW .
JOURNAL OF THE CHEMICAL SOCIETY-FARADAY TRANSACTIONS I, 1974, 70 :2145-2153
[5]   CALCINATION KINETICS AND SURFACE-AREA OF DISPERSED LIMESTONE PARTICLES [J].
BORGWARDT, RH .
AICHE JOURNAL, 1985, 31 (01) :103-111
[7]  
BORGWARDT RH, 1989, CHEM ENG SCI, V44, P53
[8]  
Carberry J.J., 1976, CHEM CATALYTIC REACT
[9]  
Carslaw H. S., 1986, CONDUCTION HEAT SOLI