Engineering development of advanced physical fine coal cleaning for premium fuel applications

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Description

The primary goal of this project is the engineering development of two advanced physical fine coal cleaning processes, column flotation and selective agglomeration, for premium fuel applications. The project scope included laboratory research and bench-scale testing on six coals to optimize these processes, followed by the design, construction and operation of 2 t/hr process development unit (PDU). This report represents the findings of the PDU Advanced Column Flotation Testing and Evaluation phase of the program and includes a discussion of the design and construction of the PDU. Three compliance steam coals, Taggart, Indiana VII and Hiawatha, were processed in the ... continued below

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111 p.

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Shields, G.L.; Smit, F.J. & Jha, M.C. August 28, 1997.

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Description

The primary goal of this project is the engineering development of two advanced physical fine coal cleaning processes, column flotation and selective agglomeration, for premium fuel applications. The project scope included laboratory research and bench-scale testing on six coals to optimize these processes, followed by the design, construction and operation of 2 t/hr process development unit (PDU). This report represents the findings of the PDU Advanced Column Flotation Testing and Evaluation phase of the program and includes a discussion of the design and construction of the PDU. Three compliance steam coals, Taggart, Indiana VII and Hiawatha, were processed in the PDU to determine performance and design parameters for commercial production of premium fuel by advanced flotation. Consistent, reliable performance of the PDU was demonstrated by 72-hr production runs on each of the test coals. Its capacity generally was limited by the dewatering capacity of the clean coal filters during the production runs rather than by the flotation capacity of the Microcel column. The residual concentrations of As, Pb, and Cl were reduced by at least 25% on a heating value basis from their concentrations in the test coals. The reduction in the concentrations of Be, Cd, Cr, Co, Mn, Hg, Ni and Se varied from coal to coal but the concentrations of most were greatly reduced from the concentrations in the ROM parent coals. The ash fusion temperatures of the Taggart and Indiana VII coals, and to a much lesser extent the Hiawatha coal, were decreased by the cleaning.

Physical Description

111 p.

Notes

OSTI as DE98058158

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  • Other Information: PBD: 28 Aug 1997

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  • Other: DE98058158
  • Report No.: DOE/PC/92208--27
  • Grant Number: AC22-92PC92208
  • DOI: 10.2172/674615 | External Link
  • Office of Scientific & Technical Information Report Number: 674615
  • Archival Resource Key: ark:/67531/metadc707604

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  • August 28, 1997

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  • Sept. 12, 2015, 6:31 a.m.

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  • Nov. 10, 2015, 7:38 p.m.

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Shields, G.L.; Smit, F.J. & Jha, M.C. Engineering development of advanced physical fine coal cleaning for premium fuel applications, report, August 28, 1997; United States. (digital.library.unt.edu/ark:/67531/metadc707604/: accessed August 23, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.