Firing blast furnace gas without support fuel in steel mill boilers

被引：66

作者：

Hou, S. S. ^{[2
]}

Chen, C. H. ^{[1
]}

Chang, C. Y. ^{[1
]}

Wu, C. W. ^{[3
]}

Ou, J. J. ^{[3
]}

Lin, T. H. ^{[1
]}

机构：

[1] Natl Cheng Kung Univ, Dept Mech Engn, Tainan 70101, Taiwan

[2] Kun Shan Univ, Dept Mech Engn, Tainan 71003, Taiwan

[3] China Steel Corp, Kaohsiung 81233, Taiwan

来源：

ENERGY CONVERSION AND MANAGEMENT | 2011年 / 52卷 / 07期

关键词：

Coke oven gas; Blast furnace gas; Industrial furnace; Boiler; Steel industry; COMBUSTION; ENERGY; PLANT; INDUSTRY; WASTE;

D O I：

10.1016/j.enconman.2011.02.009

中图分类号：

O414.1 [热力学];

学科分类号：

摘要：

In this study, the combustion characteristics of firing blast furnace gas (BFG) individually or in combination with coke oven gas (COG) were investigated theoretically and experimentally. The theoretical results showed that at the same heat release rate under the operating conditions of stoichiometry, firing BFG individually had a greater amount of fuel gas volume flow rate, a smaller amount of air volume flow rate, and a lower adiabatic flame temperature than firing BFG with support fuel without preheating. Meanwhile, the volume flow rate of flue gas for the former was greater than the latter. The experimental results obtained from a co-firing of BFG and COG fueled-boiler in a steel company showed that whether at a higher or lower boiler load, with gradually decreasing the amount of COG supply, flame instability (lift-off and blow-out) did not occur and the rate of CO emission was very low. In addition, a decrease in the amount of COG supply brought about a great benefit to the reductions of both CO2 and NOx emissions. (C) 2011 Elsevier Ltd. All rights reserved.

引用

页码：2758 / 2767

页数：10

共 24 条

[1] Thermodynamics applied to oxygen enrichment of combustion air [J].

Bisio, G ;

Bosio, A ;

Rubatto, G .

ENERGY CONVERSION AND MANAGEMENT, 2002, 43 (18) :2589-2600

[2] Energy saving does not yield CO2 emissions reductions:: the case of waste fuel use in a steel mill [J].

Bojic, M ;

Mourdoukoutas, P .

APPLIED THERMAL ENGINEERING, 2000, 20 (11) :963-975

[3]

CHENAI C, 2010, ENERG CONVERS MANAGE, V51, P1694

[4]

EDTHOFER H, 1998, ENERGY WASTE MANAGEM

[5]

FRICKER N, 2003, IFRF ONLINE COMBUSTI

[6] Combustion of residual steel gases: laminar flame analysis and turbulent flamelet modeling [J].

Gicquel, O ;

Vervisch, L ;

Joncquet, G ;

Labegorre, B ;

Darabiha, N .

FUEL, 2003, 82 (08) :983-991

[7] CO2 removal in the iron and steel industry [J].

Gielen, D .

ENERGY CONVERSION AND MANAGEMENT, 2003, 44 (07) :1027-1037

[8] Reduction of energy cost and CO2 emission for the furnace using energy recovered from waste tail-gas [J].

Jou, Chih-Ju G. ;

Wu, Chung-Rung ;

Lee, Chien-Li .

ENERGY, 2010, 35 (03) :1232-1236

[9] High temperature air combustion boiler for low BTU gas [J].

Kawai, K ;

Yoshikawa, K ;

Kobayashi, H ;

Tsai, JS ;

Matsuo, M ;

Katsushima, H .

ENERGY CONVERSION AND MANAGEMENT, 2002, 43 (9-12) :1563-1570

[10] Improving cost-effectiveness for the furnace in a full-scale refinery plant with reuse of waste tail gas fuel [J].

Lee, Chien-Li ;

Hou, Shuhn-Shyurng ;

Lee, Wen-Jhy ;

Jou, Chih-Ju G. .

INTERNATIONAL JOURNAL OF HYDROGEN ENERGY, 2010, 35 (04) :1797-1802

← 1 2 3 →