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Influence of porosity and fissuring on coking pressure generation

descriptionPublicationkeyboard_double_arrow_right Article , Journal 01 Sep 2008 Spain Publisher:Elsevier BVJournal:Fuel, volume 87, pages 2,437-2,443 (issn: 0016-2361,

Authors: Casal Banciella, María Dolores; Barriocanal Rueda, Carmen; Díez Díaz-Estébanez, María Antonia; Álvarez García, Ramón;

doi: 10.1016/j.fuel.2008.03.011

handle: 10261/11003

Influence of porosity and fissuring on coking pressure generation

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Abstract

7 pages, 7 figures, 4 tables.-- Printed version published Sep 2008. Nine bituminous coals of different rank and geographical origin were carbonized at pilot scale coke oven (300 kg) in order to study the pressure generated during coking. At the same time their contraction/expansion was assessed by means of the Koppers-INCAR test. Semicokes were carefully recovered from the test so that their structure could be studied. The semicokes were separated into two parts, i.e. one that had been heated to 575°C and the other that had been heated to 700°C. The true and apparent density of the semicokes was measured together with their pore size distribution by means of mercury porosimetry and the results were related to the dangerousness of coals. The structure of the semicokes from safe and dangerous coals is different especially in those obtained at lower temperature. In addition, the fissures of the semicokes were evaluated. The area of the fissures was found to be greater in the case of non-dangerous coals. The authors thank the Ministerio de Ciencia y Tecnología –MCYT- (project PPQ2001-1450) and the European Coal and Steel Community-ECSC- (project 7220-PR/069) for the financial support provided. Peer reviewed

Country

Spain

Related Organizations

Spanish National Research Council
Spain
Instituto Nacional del Carbón
Spain

Keywords

Coal, Semicoke, Coking pressure, Porosity

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