Comprehensive Study on the Feasibility of Pyrolysis Biomass Char Applied to Blast Furnace Injection and Tuyere Simulation Combustion

被引:17
|
作者
Dang, Han [1 ]
Wang, Guangwei [1 ]
Wang, Chen [2 ]
Ning, Xiaojun [1 ]
Zhang, Jianliang [1 ]
Mao, Xiaoming [2 ]
Zhang, Nan [1 ]
Wang, Chuan [3 ,4 ]
机构
[1] Univ Sci & Technol Beijing, State Key Lab Adv Met, Beijing 100083, Peoples R China
[2] Baosteel Res Ctr, Shanghai 201900, Peoples R China
[3] Swerim AB, SE-97125 Lulea, Sweden
[4] Abo Akad Univ, Thermal & Flow Engn Lab, FI-20500 Turku, Finland
来源
ACS OMEGA | 2021年 / 6卷 / 31期
基金
中国国家自然科学基金;
关键词
PULVERIZED COAL; BIOFUEL OIL; HYDROTHERMAL CARBONIZATION; HYDROGEN-PRODUCTION; KINETIC-ANALYSIS; SEWAGE-SLUDGE; GASIFICATION; PELLETS; COCOMBUSTION; TECHNOLOGIES;
D O I
10.1021/acsomega.1c01677
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
Basic property analysis is the most comprehensive evaluation of metallurgical characteristics of blast furnace injection fuel. In this study, the basic properties of 16 types of pyrolysis biomass char samples were comprehensively investigated; the results showed that components harmful to a blast furnace, such as the ash content and alkali metal content of Jiangsu Suzhou woodblock char (B3), Jiangsu Changzhou branch char (B8), Jiangsu Zhangjiagang bamboo char (B10), and Jiangsu Zhangjiagang coconut shell char (B12) in all of the biomass char samples, are lower and close to the level of blast furnace injection bituminous coal. The grindability, particle size distribution, and safety all met the requirements of the blast furnace. Among them, the ash melting characteristic temperature of B3, B8, Jiangsu Zhangjiagang rice husk char (B11), and Shanghai soil remediation agent (B16) was greater than 1250 degrees C, indicating that they are not easy to block the blast furnace raceway and spray guns. Most of the biomass char samples had good combustibility, and the burnout temperature was less than 700 degrees C. A self-developed blast furnace injection combustion simulation experimental device was used to simulate the combustion behavior of biomass char in the blast furnace raceway tuyere, and the burnout rates of 16 biomass chars were measured. The results showed that that the burnout rate is related to both the volatiles and fixed carbon and the influence of volatiles on the burnout rate is greater than that of fixed carbon. The burnout rates of B3 and B8 were 77.12 and 67.03%, respectively. Above all, B3 and B8 showed good properties, but the burnout rate of B3 was higher, so B3 had the feasibility of applying to blast furnace injection, which indicates that woodblock char has the potential to be used as blast furnace injection fuel.
引用
收藏
页码:20166 / 20180
页数:15
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