THE IMPACT OF MINERAL MATTER IN COAL ON ITS COMBUSTION, AND A NEW APPROACH TO THE DETERMINATION OF THE CALORIFIC VALUE OF COAL

被引:44
作者
SHIRAZI, AR
BORTIN, O
EKLUND, L
LINDQVIST, O
机构
[1] GOTHENBURG UNIV,GOTHENBURG,SWEDEN
[2] SWEDISH CERAM INST,GOTHENBURG,SWEDEN
关键词
COAL; MINERAL MATTER; CALORIFIC VALUE;
D O I
10.1016/0016-2361(95)92661-O
中图分类号
TE [石油、天然气工业]; TK [能源与动力工程];
学科分类号
0807 ; 0820 ;
摘要
To estimate the influence of mineral matter in coal on coal combustion, fluidized bed combustion (FBC) and pulverized coal combustion (PCC) were simulated by simple models. The theoretical calorific values of some hypothetical coals of different rank and mineral matter content were calculated. The calculated calorific values of coals tend to decrease with increasing mineral matter content. This is due to endothermic reactions of decomposition of the mineral matter as well as the heat capacities of such minerals. The resulting combustion energy loss can be very large. A new approach to the calculation of the calorific value of coals is also proposed.
引用
收藏
页码:247 / 251
页数:5
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