HIGH-TEMPERATURE DESULFURIZATION USING FINE SORBENT PARTICLES UNDER BOILER INJECTION CONDITIONS

被引：36
作者：
YE, ZC
WANG, WY
ZHONG, Q
BJERLE, I
机构：
[1] Department of Chemical Engineering II, Chemical Center, University of Lund
来源：
FUEL | 1995年 / 74卷 / 05期
关键词：
DESULFURIZATION; PORE PARTICLE SIZE; REACTIVITY;
D O I：
10.1016/0016-2361(94)00011-F
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：
The high temperature reaction of SO2 with CaO was investigated in three reactors: a thermogravimetric reactor (TGA), a volumetric reactor (VR) and an entrained flow reactor (EFR). Several natural limestones with super fine particles were used as sorbents. It was found that the reaction could be well characterized by a two-stage process. The initial stage was very fast and lasted about 0.1-0.4 s. The chemical kinetics of the reaction was studied and modelled. In addition to other parameters, such as particle size and Brunauer-Emmett-Teller (BET) surface area, the pore volume located in the larger pores (> 5.0 nm) was found to contribute somewhat to the high SO2 removal and CaO conversion. At Ca/S = 2 the SO2 removal was more than 90%.
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页码：743 / 750
页数：8
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