Desulfurization of mezino coal using combination of ‘flotation’ and ‘leaching with potassium hydroxide/methanol’ |
| |
| Affiliation: | 1. Mineral Processing Engineering Department, Tarbiat Modarres university, Tehran, Iran;2. Chemical Engineering Department, Tarbiat Modarres University, Tehran, Iran;3. Chemical Engineering Department, Tarbiat Modarres University, Tehran, Iran;1. Department of Otorhinolaryngology T, Institute of Medical Sciences and SUM Hospital, Siksha ‘O’ Anusandhan University, Odisha, India;2. Central Research Laboratory, Institute of Medical Sciences and SUM Hospital, Siksha ‘O’ Anusandhan University, Odisha, India;1. Institute of Environmental Engineering and Research, University of Engineering and Technology, Lahore 54890, Pakistan;2. Department of Chemical and Polymer Engineering, University of Engineering and Technology, Faisalabad, Pakistan;3. University of Management and Technology Lahore, Pakistan;4. College of Environmental Science and Engineering, Beijing Forestry University, No. 35 Qinghua East Road, Haidian District, Beijing, 100083, PR China;5. Baariq Pharmaceuticals Sundar Industrial Estate, Lahore, Pakistan |
| |
| Abstract: | Mezino coal contains a high percentage of ash and both organic and inorganic sulfur. The ash and sulfur contents can be reduced using physical–chemical and chemical methods. ‘Froth flotation’ is a physical–chemical method that is capable of reducing inorganic sulfur and the ash content of coal. In this research, reducing the ash content of mezino coal by 83%, inorganic sulfur by 72% and its total sulfur content by 63% using flotation in alkaline pH and in the presence of copper ion was successful. The coal flotation obtained was 73%. The coal concentration obtained from flotation was leached using potassium hydroxide/methanol mixture and its total sulfur and ash contents were reduced by approximately 33 and 8%, respectively. Hence, using the combination of the two mentioned methods, the total sulfur and ash contents of coal were reduced by 82.50 and 82.34%, respectively. It is an unprecedented and welcome result compared to the previous work. |
| |
| Keywords: | |
| 本文献已被 ScienceDirect 等数据库收录！ |
|
