Development of the electroacoustic dewatering (EAD) process for fine/ultrafine coal. Final report

Technical Report · Thu Oct 31 00:00:00 EST 1991

DOI:https://doi.org/10.2172/10106658· OSTI ID:10106658

Chauhan, S P; Kim, B C; Menton, R; Senapati, N; Criner, C L; Jirjis, B; Muralidhara, H S; Chou, Y L; Wu, H; Hsieh, P ^[1]; Johnson, H R; Eason, R ^[2]; Chiang, S M; Cheng, Y S ^[3]; Kehoe, D ^[4]

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1. Battelle, Columbus, OH (United States)
2. Ashbrook-Simon-Hartley Corp., Houston, TX (United States)
3. Pittsburgh Univ., PA (United States)
4. CQ, Inc., Homer City, PA (United States)

Battelle (Columbus, Ohio) undertook development of its electro-acoustic (EAD) process to demonstrate its commercial potential for continuous dewatering of fine and ultrafine coals. The pilot plant and laboratory results, provided in this report, show that a commercial-size EAD machine is expected to economically achieve the dewatering targets for {minus}100 mesh and {minus}325 mesh coals. The EAD process utilizes a synergistic combination of electric and acoustic (e.g., ultrasonic) fields in conjunction with conventional mechanical processes, such as belt presses, screw presses, plate and frame filter presses, and vacuum filters. The application of EAD is typically most beneficial after a filter cake is formed utilizing conventional mechanical filtration. (VC)

• Research Organization: Battelle Memorial Inst., Columbus, OH (United States)
• Sponsoring Organization: USDOE, Washington, DC (United States)
• DOE Contract Number: AC22-88PC88883
• OSTI ID: 10106658
• Report Number(s): DOE/PC/88883-T9; ON: DE92004843
• Resource Relation: Other Information: PBD: 31 Oct 1991
• Country of Publication: United States
• Language: English

Related Subjects

01 COAL, LIGNITE, AND PEAT
COAL FINES
WATER REMOVAL
PARAMETRIC ANALYSIS
FLOCCULATION
ADDITIVES
TEMPERATURE EFFECTS
ULTRASONIC WAVES
ELECTRIC FIELDS
PRESSES
FILTERS
PROGRESS REPORT
010300
PREPARATION