Clean Carbon Steelmaking: Evaluating the Replacement of Mineral Coal with Malt Biochar in Iron Ore Pelletization

被引：0

作者：

Neto, Lucio Rosso ^{[1
]}

Rodrigues, Carolina da Silva ^{[1
]}

Borgert, Carlos Henrique ^{[1
]}

Silveira, Vitoria da Silva ^{[1
]}

Milanez, Mateus ^{[1
]}

Grillo, Felipe Fardin ^{[2
]}

de Oliveira, Jose Roberto ^{[2
]}

Cuzzuol, Danubia Junca ^{[3
]}

Frizon, Tiago Elias Allievi ^{[4
]}

Zimmermann, Matheus Vinicius Gregory ^{[1
]}

Junca, Eduardo ^{[1
]}

机构：

[1] Univ Extremo Sul Catarinense, Postgrad Program Mat Sci & Engn, Lab Met & Ind Waste Treatment LAMETRI, Av Univ,1105 Bairro Univ, BR-88806000 Criciuma, SC, Brazil

[2] Fed Inst Espirito Santo, Dept Met & Mat Engn, Ave Vitoria,1729 Jucutuquara, BR-29040780 Vitoria, ES, Brazil

[3] Fed Univ Itajuba UNIFEI, Itabira Campus,R Irma Ivone Drumond,200 Dist Ind 2, BR-35903087 Itabira, MG, Brazil

[4] Univ Fed Santa Catarina, Dept Energy & Sustainabil, R Gov Jorge Lacerda 3201, BR-88906072 Ararangua, SC, Brazil

来源：

JOM | 2025年 / 77卷 / 04期

关键词：

STEEL-INDUSTRY; PELLETS;

D O I：

10.1007/s11837-025-07138-z

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Replacing mineral coal with biochar from malt bagasse is an alternative to reduce the impact of CO2 emissions and the greenhouse effect in the steel industry. One process in which this biochar can be used is in the pelletization of iron ore, which consists of using ore fines, with coal and additives, to obtain a product that can be used in blast furnaces. In the performance of pellets with partial replacement of coal with malt biochar, the variables in the pellet production were: binary basicity (CaO/SiO2), fixed carbon, and coal substitution. The green pellets were subjected to the drop test (2.7-4 drops), the burnt pellets were tested for their drumming index (1.61-17.33 wt.%), porosity (23.7-39.6%), and mechanical resistance to compression (31.3-299.4 kgf). This route is a promising alternative to reduce the impact of the steel industry on the greenhouse effect by reducing the use of coal and malt waste valorization.

引用

页码：2266 / 2273

页数：8

共 30 条

[1] IRON-ORE FLUXED PELLETS AND THEIR PHYSICAL-PROPERTIES [J].