Bench-Scale Performance Testing and Economic Analyses of Electrostatic Dry Coal Cleaning

摘要

The report gives results of preliminary performance evaluations and economic analyses of the Advanced Energy Dynamics (AED) electrostatic dry coal-cleaning process. Grab samples of coal feed product coals were obtained from 25 operating physical coal cleaning (PCC) plants. These samples were analyzed for ash, sulfur, and energy content and splits of the original samples of feed run-of-mine coal were provided for bench-scale testing in an electrostatic separation apparatus. The process showed superior sulfur removal performance at equivalent cost and energy recovery levels. The ash removal capability of the process was not evaluated completely: overall, ash removal results indicated that the process did not perform as well as the PCC plants.