Combustion characteristics of waste sludge at air and oxy-fuel combustion conditions in a circulating fluidized bed reactor

被引：55
|
作者：
Jang, Ha-Na [1 ]
Kim, Jeong-Hun [2 ]
Back, Seung-Ki [1 ]
Sung, Jin-Ho [1 ]
Yoo, Heung-Min [1 ,2 ]
Choi, Hang Seok [1 ]
Seo, Yong-Chil [1 ]
机构：
[1] Yonsei Univ, Dept Environm Engn, Wonju 220710, South Korea
[2] Natl Inst Environm Res, Inchon 404708, South Korea
来源：
FUEL | 2016年 / 170卷
关键词：
Circulating fluidized bed; Oxy-fuel combustion; Waste sewage sludge; Carbon dioxide; Carbon capture and storage; SEWAGE-SLUDGE; HEAVY-METALS; COAL; COCOMBUSTION; INCINERATION; EMISSIONS; BEHAVIOR;
D O I：
10.1016/j.fuel.2015.12.033
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：
Oxy-fuel combustion and circulating fluidized bed (CFB) technologies were applied to waste sewage sludge using a cold-bed and a 30 kWth CFB pilot test bed. In the cold-bed tests, the minimum fluidization velocity (u(mf)) and the superficial velocity were determined as 0.120 m/s and 2.5 m/s, respectively. In pilot tests, the combustion characteristics of waste sewage sludge in oxy-fuel condition were very distinctive compared with that in air condition in terms of operation parameters such as the distribution of pressure drop and temperature, flue-gas temperature, and the composition of ash and flue-gas. Based on cold-bed and pilot bed tests, the oxygen injection rate was optimized in the range from 21% to 25% in oxy-fuel condition for waste sludge combustion to apply oxy-fuel combustion and CFB technologies with considering technologies for stable and economic operation. (C) 2015 Elsevier Ltd. All rights reserved.
引用
收藏
页码：92 / 99
页数：8
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