Feasibility Analysis of Biomass Hydrochar Blended Coal Injection for Blast Furnace

被引：17

作者：

Wang, Kai ^{[1
,2
]}

Zhang, Jianliang ^{[1
]}

Wu, Shengli ^{[1
,2
]}

Wu, Jianlong ^{[2
]}

Xu, Kun ^{[1
]}

Liu, Jiawen ^{[1
]}

Ning, Xiaojun ^{[1
]}

Wang, Guangwei ^{[1
]}

机构：

[1] Univ Sci & Technol Beijing, Sch Met & Ecol Engn, Beijing 100083, Peoples R China

[2] Shougang Jingtang Iron & Steel Co Ltd, Tangshan 063200, Peoples R China

来源：

SUSTAINABILITY | 2022年 / 14卷 / 17期

基金：

中国国家自然科学基金;

关键词：

biomass; hydrothermal carbonization; hydrochar; combustion; blast furnace injection; HYDROTHERMAL CARBONIZATION; TECHNOLOGIES; GASIFICATION; SIMULATION; KINETICS;

D O I：

10.3390/su141710885

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

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.

引用

页数：17

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