Residual Coal Characterization for Addition to Red Clay Ceramics

Abstract:

The high temperature firing to process clay ceramics requires some kind of fuel, which is associated with cost and embodied energy of the final product. Saving in fuel by introducing substances with heating power represents both economical and energetical advantages. The incorporation of a fuel containing waste into the precursor clay body constitutes also an environmentally correct solution for the destination of the waste. A typical fuel-containing waste, generated in large scale, is the residual coal, which falls to the harbor yard during transfer from the cargo ship. This coal can no longer be embarked and is usually discarded in the environment. Its addition into ceramic clay is the most viable solution. Therefore, the objective of the present work is to characterize a residual coal in terms of its chemical constituents, heat power and granulometric distribution. The results indicate that the residual coal presents toxic compounds in amounts below the limits established by the environmental legislation. Its fine granulometry favors the addition to clay ceramics.

• Periodical: Materials Science Forum (Volume 820)
• Pages: 425-431
• DOI: https://doi.org/10.4028/www.scientific.net/MSF.820.425
• Online since: June 2015
• Authors: Carlos Maurício Fontes Vieira*, Sergio Neves Monteiro
• Keywords: Chemical Characterization, Granulometry, Red Clay Ceramic, Residual Coal

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