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

被引：57

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

页码：92 / 99

页数：8

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