Abstract
A new evaluation method for coking coals has been proposed for foundry coke manufacturing. The distribution of optical textures in coke was evaluated by an automatic image analysis system. Hydrogen donor and acceptor abilities of coals and pitch were also measured. The extent of the development of anisotropic texture in the coke correlates closely to hydrogen transfer ability of coal and pitch mixture. The hydrogen transfer ability in the raw material is one of the most important parameters for foundry coke manufacturing.
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