Feasibility Analysis of Biomass Hydrochar Blended Coal Injection for Blast Furnace

Kai Wang, Jianliang Zhang, Shengli Wu, Jianlong Wu, Kun Xu, Jiawen Liu, Xiaojun Ning and Guangwei Wang ()
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Kai Wang: School of Metallurgical and Ecological Engineering, University of Science and Technology Beijing, Beijing 100083, China
Jianliang Zhang: School of Metallurgical and Ecological Engineering, University of Science and Technology Beijing, Beijing 100083, China
Shengli Wu: School of Metallurgical and Ecological Engineering, University of Science and Technology Beijing, Beijing 100083, China
Jianlong Wu: Shougang Jingtang Iron and Steel Co., Ltd., Tangshan 063200, China
Kun Xu: School of Metallurgical and Ecological Engineering, University of Science and Technology Beijing, Beijing 100083, China
Jiawen Liu: School of Metallurgical and Ecological Engineering, University of Science and Technology Beijing, Beijing 100083, China
Xiaojun Ning: School of Metallurgical and Ecological Engineering, University of Science and Technology Beijing, Beijing 100083, China
Guangwei Wang: School of Metallurgical and Ecological Engineering, University of Science and Technology Beijing, Beijing 100083, China

Sustainability, 2022, vol. 14, issue 17, 1-17

Abstract: It is critical for the iron and steel industry to achieve green transformation and development by effectively utilizing abundant biomass resources in blast furnace ironmaking. In this paper, four types of typical biomass were carbonized and upgraded using the hydrothermal carbonization (HTC) method, and the metallurgical performance of the prepared hydrochar for blast furnace injection was systematically tested. The results show that HTC treatment could remove volatile matter and dissolved mineral elements in biomass so that the hydrochar had the characteristics of high fixed carbon and low ash and alkali metal content. Moreover, the hydrochar had good grindability and excellent combustion performance, which meet the requirements of blast furnace injection. Finally, the metallurgical performance of blended coal and wood chip hydrochar was examined. It was observed that when the ratio of hydrochar was less than 15%, it would not affect the blast furnace injection, and the potential safety hazard caused by the explosive hydrochar could be resolved by mixing hydrochar with anthracite. The application of hydrochar in blast furnace injection could not only alleviate the current energy shortage situation, but also be of great significance to realize the “carbon peak” of the steel industry.

Keywords: biomass; hydrothermal carbonization; hydrochar; combustion; blast furnace injection (search for similar items in EconPapers)
JEL-codes: O13 Q Q0 Q2 Q3 Q5 Q56 (search for similar items in EconPapers)
Date: 2022
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (2)

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Persistent link: https://EconPapers.repec.org/RePEc:gam:jsusta:v:14:y:2022:i:17:p:10885-:d:903159

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