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Models for prediction of total and carboxyl acidity of low rank coals

โœ Scribed by Kedar Prasad Singh

Publisher
Elsevier Science
Year
1992
Tongue
English
Weight
459 KB
Volume
32
Category
Article
ISSN
0378-3820

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Determination of the total acidity of lo
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Determination of the total of low-rank coals \* Although 'activated coal' is the term used in the translation of Ihnatowicz's paper 'activated charcoal' is probably what is meant.

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An unsteady state heat conduction model with a convective boundary condition is proposed for the drying of low-rank, high-porosity coals, such as Iignites, during fluidized-bed combustion. The drying front is assumed to be the receding surface of a wet core. The solution technique for this moving bo

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Acidic functional groups in five low-rank coals from various parts of the world have been determined by aqueous ion exchange and non-aqueous titration procedures. The total acidity found by titration was, in general, significantly higher than that obtained by ion exchange at pH 13 for all the coals.