Experimental determination of the strength and reactivity of lumpy and briquetted chars from non-coking coals under melter-gasifier conditions
| Autor: | Hado Heckmann, Johannes Schenk, Anrin Bhattacharyya |
|---|---|
| Rok vydání: | 2017 |
| Předmět: |
010302 applied physics
Blast furnace Materials science Wood gas generator Mechanical Engineering Metallurgy Metals and Alloys 02 engineering and technology Coke Raw material 01 natural sciences Operational requirements 020501 mining & metallurgy 0205 materials engineering Mechanics of Materials 0103 physical sciences Materials Chemistry Reactivity (chemistry) Char Pyrolysis |
| Zdroj: | Ironmaking & Steelmaking. 45:907-912 |
| ISSN: | 1743-2812 0301-9233 |
| DOI: | 10.1080/03019233.2017.1410968 |
| Popis: | With the advent of alternative smelting-reduction processes of ironmaking like COREX® and FINEX®, the demand for non-coking coals as a major raw material has increased. In these processes, char is formed from non-coking coals inside the melter-gasifier (MG) by pyrolysis. This char, either in lumpy or briquetted form, is the major reductant and fuel of the smelting-reduction process. Just like the coke in blast furnace, the char should also have certain chemical and mechanical properties suitable for operational requirements of the MG. However, there is a lack of systematic works related to the properties of chars from non-coking coals for ironmaking. This work aims to define a standardised testing method to determine the reactive and mechanical properties of lumpy and briquetted chars comparable to existing ISO norms. It also demonstrates the effect of different operational conditions on char properties. The testing method described in this work should be useful to the industry personnel to evalua... |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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