No coin nor oath required. For personal study only.
97lQ2510 Hydrothermal Reaction of Ca(OH)* with Quartz in Connection with Coal Demineralization Wang, J. and Tomita. A. lrltl Eny. Clzrnl. Res. 1097, 36, (5). 1464-146'). The reaction is descrihcd in detail and the results are presented 97102511 Identification of coal characteristics indicating problems of swelling during carbonization Edwards, 1. et rrl. &mm. Eur. Communities, /Rep./ EUR, 1997, (EUR 171.5(l), pp. 189. Some coals generate a very high internal pressure during the carbonization of coals in the coke oven. Consequently.
they swell so excessively that they damage coke oven walls or cause coke pushing problems known as 'stickers'. Several methods have been employed over the years in the assessment of coal for its suitability in the production of mrtallurgical coke in the coke oven process. Examples of these methods are given. Although these tests are adequate for addressing the coking properties of coal they have failed to distinguish those coals that swell excessively during carbonization and those that do not. Therefore the problem of predicting dangerous swelling characteristics of coal using a more fundamental approach should be considered.
The aim of the present project is to establish a fundamental understanding of the relationship between the coal structure properties, the carbonization mechanism and the coke properties for coals which exhibit these properties.
Ignition behavior of pulverized coals Chen, J. C. C/lem. P11ys. Processes Comhust., 1996, 155-158. Coals ranging in rank from sub-bituminous to medium-volatile bituminous are studied using a single-pulse laser.
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