2015-Sustainable Industrial Processing Summit
SIPS 2015 Volume 3: Takano Intl. Symp. / Metals & Alloys Processing
| Editors: | Kongoli F, Noldin JH, Mourao MB, Tschiptschin AP, D'Abreu JC |
| Publisher: | Flogen Star OUTREACH |
| Publication Year: | 2015 |
| Pages: | 550 pages |
| ISBN: | 978-1-987820-26-3 |
| ISSN: | 2291-1227 (Metals and Materials Processing in a Clean Environment Series) |
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Evaluation Of The Compressive Strength, Bulk Density And Co2 Reactivity Of Briquettes Of Charcoal And Coal
Lina Cardona1; Marcelo Mourao1; Cesar Yuji Narita2; Cyro Takano1;1UNIVERSITY OF SAO PAULO, Sao Paulo, Brazil; 2POLYTECHNIC SCHOOL OF THE UNIVERSITY OF SAO PAULO, Sao Paulo, Brazil;
Type of Paper: Regular
Id Paper: 338
Topic: 3
Abstract:
The use of biomass in processes of iron ore reduction contributes to lowering the CO2 emissions, which is one of the main issues in the ironmaking industry. An alternative to nowadays technologies is the development of coal-charcoal composite materials that have similar properties of those found in metallurgical coke. This paper presents an evaluation of the compressive strength and CO2 reactivity of coal-charcoal composite briquettes. Coal-charcoal composite briquettes were manufactured with addictions of 5, 10 and 15 wt% of charcoal, with both coal and charcoal presenting particle size less than 0,150 mm. The briquettes were obtained by pressing the coal-charcoal mixture in a cylindrical die followed by a heat treatment of 1100°C for 8 hours. The briquettes were evaluated by their compressive strength and CO2 reactivity. The CO2 reactivity tests were carried out under different temperatures and CO2 flows. It was found out that the briquettes produced with additions between 10 and 15 wt% of charcoal showed the best compressive strength results. The CO2 reactivity showed a slight increase for additions above 5 wt% of charcoal in comparison with briquettes of coal (without the addiction of charcoal) that went through the same heat treatment.
Keywords:
CO2; Carbon; Charcoal; Coke;References:
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