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Energy Sources, Part A: Recovery, Utilization, and Environmental Effects Volume 39, 2017 - Issue 13
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Articles

Recovery and de-ashing of coal fines from coal water slurry using the oil agglomeration process by waste transformer oil

Anand Mohan YadavDepartment of Fuel & Mineral Engineering, Indian Institute of Technology (Indian School of Mines), Dhanbad, Jharkhand, IndiaCorrespondence[email protected]
,
Abhishek SundaramDepartment of Fuel & Mineral Engineering, Indian Institute of Technology (Indian School of Mines), Dhanbad, Jharkhand, India
,
Kaustubh Pramod GhagDepartment of Fuel & Mineral Engineering, Indian Institute of Technology (Indian School of Mines), Dhanbad, Jharkhand, India
,
Nikkam SureshDepartment of Fuel & Mineral Engineering, Indian Institute of Technology (Indian School of Mines), Dhanbad, Jharkhand, India
&
Pratima GajbhiyeDepartment of Chemical Engineering, Pravara Rural Engineering College, Loni, Maharastra, India
Pages 1353-1358 | Published online: 21 Jun 2017
 
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ABSTRACT

The waste coal water slurry from coal washeries contains a significant amount of energy values in terms of both fine and ultrafine coals. These slurries, when disposed off without proper treatment, pose a threat to the environment. Oil agglomeration can be a promising technique to recover these fine coals. In the present study, waste transformer oil from the power generation-transmission sector was used to recover these coal fines. The effect of pulp density, agglomeration time, oil dosage, and particle size was investigated for the performance of the process. The performance of the process was evaluated based on % ash rejection and % organic matter recovery.

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