Research improvement in Zn-based sorbent for hot gas desulfurization

被引:44
作者
Bu, Xuepeng [1 ]
Ying, Youju [1 ]
Zhang, Cuiqing [1 ]
Peng, Wanwang [2 ]
机构
[1] China Coal Res Inst, Beijing Res Inst Coal Chem, Beijing 100013, Peoples R China
[2] So Co Serv Inc, Wilsonville, AL 35186 USA
关键词
hot gas desulfurization (HGD); Zn-based sorbent IGCC;
D O I
10.1016/j.powtec.2007.03.039
中图分类号
TQ [化学工业];
学科分类号
0817 ;
摘要
Two Zn-based sorbents, named as L-991 and L-992, used for hot gas desulfurization were developed. The L-992, which was prepared by changing Zn/Ti ratio and adding certain proportion of Cu and Mn metal oxide, has better performance than L-991. The suitable desulfurization temperature was 600-700 degrees C for the L-991 and 600-800 degrees C for the L-992. The sulfur capacity was about 16 g/100 g and 19-21 g/100 g of L-991 and L-992 respectively. After 17 multi-cycles sulfidation/regeneration tests, the sulfur capacity of the L-991 decreased greatly, while that of the L-992 still remained at 17 g/100 g. Both the sorbents showed orderly crystalline orientation and the particle size did not change. Sulfidation and regeneration tests were done both on lab micro-fixed-bed reactor and SMOVEN equipment. During the continuous tests, the H2S concentration can be reduced from about 10 g/m(3) to less than 20 mg/m(3), the H2S removal efficiency was >99%. (C) 2007 Elsevier B.V. All rights reserved.
引用
收藏
页码:253 / 258
页数:6
相关论文
共 13 条
[1]  
BU XP, 1997, J CHINA COAL SOC, V22, P71
[2]  
Du X, 2004, J COAL CONVERSION, V27, P57
[3]  
Gangwal S., 2003, 20 ANN INT PITTSB CO
[4]   Investigation on desulfurization performance and pore structure of sorbents containing zinc ferrite [J].
Kobayashi, M ;
Shirai, H ;
Nunokawa, M .
ENERGY & FUELS, 1997, 11 (04) :887-896
[5]  
Kobayashi M., 1996, HIGH TEMPERATURE GAS, P618
[6]   Cu-Cr-O and Cu-Ce-O regenerable oxide sorbents for hot gas desulfurization [J].
Li, ZJ ;
Flytzani-Stephanopoulos, M .
INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH, 1997, 36 (01) :187-196
[7]  
PENG WW, 1999, P 2 INT S CLEAN COAL, P901
[8]  
SHA XZ, 2002, J GAS HEAT, V22, P54
[9]  
SHEN F, 2004, J COAL CONVERS, V27, P54
[10]  
Slimane R. B., 2003, 20 ANN INT PITTSB CO