ANALISIS PROKSIMAT TERHADAP KUALITAS BATUBARA DI KECAMATAN TANAH GROGOT KABUPATEN PASER PROVINSI KALIMANTAN TIMUR

Abstract

One of the adverse impacts on the coal consumption in industry is that the impurity content which is contained in coal is high. This research aimed to discover the percentage of the proximate analysis results in the coal and to discover its effect on the calorific value of the coal. It was conducted by obtaining the coal samples to be analyzed, and the samples were then processed to produce the samples ready for testing. The test results of proximate analysis conducted on the five samples showed that the percentage obtained in the first sample was water content of 15.82%, ash 2.90%, fly ash 42.85%, solid carbon 38.6% with a calorific value of 5683 Kcal/kg, in the second sample was the water content of 18.65%, ash 3.65%, fly ash 41.76%, solid carbon 63.1% with a calorific value of 5380 Kcal/kg, in the third sample was the water content of 16.89%, ash 2.90%, fly ash 42.06%, solid carbon 38.1% with a calorific value of 5635 Kcal/kg, in the four sample was the water content of 18.48%, ash 3.65%, fly ash 41.40%, solid carbon 36.4%, with a calorific value of 5380 Kcal/kg and in the fifth sample was the water content of 15.82%, ash 3.09%, fly ash 42.91%, solid carbon 38.1% with a calorific value of 5643 Kcal/kg. In conclusion, the higher the water content and ash are, the more decreased the calorific value of the coal will be, and the effect of the flying substance showed that the low content flying substance has a low caloric value. While the effect of carbon showed that the lower the carbon content is,the more decreased the calorific value of coal is.