Pengaruh Ukuran Partikel Pada Analisis Moisture Batubara Jenis Low Rank Coal
DOI:
https://doi.org/10.33536/jg.v7i02.1348Keywords:
Low Rank Coal, Total Moisture content, Air Dry Loss, Residual MoistureAbstract
The moisture of coal produced by mines in Indonesia is mostly relatively large and has a low calorific value classified as low-rank coal. The negative impacts of using low-rank coal include decreasing combustion efficiency, decreasing the efficiency of heat exchangers in boilers, containing a lot of impurity minerals, and more expensive transportation costs. Low-rank coal can be used as an alternative energy to meet the needs of domestic industries. The purpose of this study is to obtain a uniform time interval analysis of water content by studying the effect of the time of coal particle size. The main material used in this study is low-rank coal. This research consists of three stages, namely: preparation of raw materials, drying stage and coal analysis stage. The standard preparation stage includes the procurement of coal samples and the preparation stage. at this stage, coal is first prepared to get uniform size coal. Coal analysis includes Air Dry Loss (% ADL), Residual Moisture (% RM) and Total Moisture (% TM). From the analysis results obtained that the best particle size is 1,80 mm with the drying time required 8 hours 36 minutes. The effect of particle size has no significant difference in drying time.
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