Work

Replacement of Metallurgical Coke with Bio-Coke from Coconut Shells

Year: 2025

Type: article

Abstract: High Resolution Image Download MS PowerPoint Slide A comparison was made between the properties of bio-coke (BIC) obtained from briquetted coconut shell biochar and metallurgical coke. The aim was to explore the possibility of using BIC or its blends with metallurgical coke as a potential reducing agent in blast furnaces (BFs). Coconut shells were pyrolyzed at different temperatures (between 200 and 450 °C) to produce biochar. Effects of briquetting temperature (150, 250, and 350 °C) on the mechanical properties of the BIC produced were also studied. The physicochemical characteristics and mechanical strength of the materials have been reported. Reactivity was studied using thermogravimetric analysis and the ECE-INCAR method to determine the effect of BIC addition on metallurgical coke. The mechanical strength of the BIC was lower than that of the metallurgical coke, whereas the reactivity was higher. The results suggested that BIC cannot be used as a total replacement for coal-coke in a BF. Nevertheless, the blend with 5 wt % BIC showed potential as an alternative to reduce the usage of coal-coke.

Source: Energy & Fuels

DOI: 10.1021/acs.energyfuels.5c02366

Authors: Elias Ricardo Durango Padilla, Fabio Minoru Yamaji, Carlos Manuel Romero Luna, Cristiane Inácio de Campos, Carmen Barriocanal

Institutions: Universidade Federal de São Carlos, Universidade Estadual Paulista (Unesp), Instituto Nacional del Carbón

Language: English

Topic: Coal and Coke Industries Research

Subfield: Fuel Technology

Field: Energy

Domain: Physical Sciences

SDGs: Responsible consumption and production, Affordable and clean energy

Open Access status: hybrid

Estimated APC paid: $4,500