Numerical Simulation Study on the Effects of Co-Injection of Pulverized Coal and Hydrochar into the Blast Furnace

Tao Li, Guangwei Wang, Heng Zhou, Xiaojun Ning and Cuiliu Zhang
Additional contact information
Tao Li: State Key Laboratory of Advanced Metallurgy, University of Science and Technology Beijing, Beijing 100083, China
Guangwei Wang: State Key Laboratory of Advanced Metallurgy, University of Science and Technology Beijing, Beijing 100083, China
Heng Zhou: State Key Laboratory of Advanced Metallurgy, University of Science and Technology Beijing, Beijing 100083, China
Xiaojun Ning: State Key Laboratory of Advanced Metallurgy, University of Science and Technology Beijing, Beijing 100083, China
Cuiliu Zhang: School of Metallurgical and Ecological Engineering, University of Science and Technology Beijing, Beijing 100083, China

Sustainability, 2022, vol. 14, issue 8, 1-13

Abstract: To solve the energy crisis and slow down the greenhouse effect, it is urgent to find alternative energy sources for the iron and steel production process. Hydrochar is an auxiliary fuel and the only renewable carbon source that could reduce the injection of bituminous coal into the blast furnace. Numerical simulation is an effective method of understanding the combustion performance in the lower part of the blast furnace. A 3D blowpipe-tuyere-raceway model was established using the computational fluid dynamics (CFD) method to study the effects on combustion performance between pulverized coal and hydrochar. The results showed that co-injection of anthracite and hydrochar has a better combustion performance than co-injection of anthracite and bituminous coal, with a more appropriate distribution of temperature, velocity, and gas phase. With the co-injection of hydrochar, the total burnout rate and anthracite burnout rate increased, respectively, by 6% and 2.1%, which is caused by the interaction mechanism between anthracite and hydrochar. As a result, hydrochar as an auxiliary fuel for blast furnace injection not only can achieve low-carbon production and cut down carbon emission but also benefit the combustion process of anthracite coal.

Keywords: hydrochar; co-injection; numerical simulation; the interaction mechanism (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)

Downloads: (external link)
https://www.mdpi.com/2071-1050/14/8/4407/pdf (application/pdf)
https://www.mdpi.com/2071-1050/14/8/4407/ (text/html)

Related works:
This item may be available elsewhere in EconPapers: Search for items with the same title.

Export reference: BibTeX RIS (EndNote, ProCite, RefMan) HTML/Text

Persistent link: https://EconPapers.repec.org/RePEc:gam:jsusta:v:14:y:2022:i:8:p:4407-:d:788946

Access Statistics for this article

Sustainability is currently edited by Ms. Alexandra Wu

More articles in Sustainability from MDPI
Bibliographic data for series maintained by MDPI Indexing Manager ().