期刊
FUEL PROCESSING TECHNOLOGY
卷 92, 期 4, 页码 801-804出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/j.fuproc.2010.08.005
关键词
Biomass; Coke; Reactivity
Incorporation of biomass-derived materials in coal blends for cokemaking is one of the strategies that could reduce the levels of greenhouse gas emissions produced by the steelmaking process. Bio-coke refers to the resultant coke prepared with the addition of charcoal to a coal blend. In this work, characteristics of bio-coke gasification by reacting with CO2 were examined using Thermal Gravimetric Analysis. Bio-coke samples with different levels of charcoal addition to a coal blend were prepared in the CanmetENERGY pilot-scale coke oven. These samples were heated in CO2 for identification of the minimum gasification temperature. Sample gasification rates at 1000 degrees C were also measured. It was observed that mineral content plays an important role in the gasification characteristics of the bio-cokes. Those with low mineral content behave very similarly to the reference coke. Higher mineral content bio-coke reacts with CO2 at a lower temperature. It was found that the gasification characteristics of the bio-cokes are well described by the alkalinity index. Crown Copyright (C) 2010 Published by Elsevier B.V. All rights reserved.
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