Agglomeration of Makarwal coal using soybean oil as agglomerant

作者：Mustafa Asad; Ahmad Toqeer; Akhtar Javaid; Shahzad Khurram; Sheikh Naseer; Munir Shahid^*

来源：Energy Sources, Part A: Recovery, Utilization, and Environmental Effects , 2016, 38(24): 3733-3739.

DOI：10.1080/15567036.2016.1141268

• Agglomeration
• ash
• gross calorific value
• Pakistani coal
• soybean oil
• sulfur

The study was carried out for beneficiation of Makarwal coal using soybean oil as agglomerant. The effect of six parameters - pH, mesh size of coal particles, slurry ratio, stirring speed, soybean oil concentration, and time of agglomeration - was investigated to reduce ash and sulfur from Makarwal coal and to enhance the gross calorific value. In the cleaned product obtained after the agglomeration process, the gross calorific value was increased from 4900 to 7115 Kcal/kg. The ash of agglomerates was reduced from 30% to 7.5% and sulfur was reduced from 5.4% to 2.0% The optimum operating conditions were concentration of soybean oil 10 mL, pH 9, stirring speed 2800 rpm, mesh size 200, coal to water ratio of 15:450 (W/V), and time of agglomeration 20 min. Significant reduction in ash and sulfur showed the effectiveness for agglomeration of Makarwal coal using soybean oil as the agglomerant. The final product thus obtained may be used efficiently in various energy recovery schemes.

• 出版日期2016