Development of the LICADO coal cleaning process

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Development of the liquid carbon dioxide process for the cleaning of coal was performed in batch, variable volume (semi-continuous), and continuous tests. Continuous operation at feed rates up to 4.5 kg/hr (10-lb/hr) was achieved with the Continuous System. Coals tested included Upper Freeport, Pittsburgh, Illinois No. 6, and Middle Kittanning seams. Results showed that the ash and pyrite rejections agreed closely with washability data for each coal at the particle size tested (-200 mesh). A 0.91 metric ton (1-ton) per hour Proof-of-Concept Plant was conceptually designed. A 181 metric ton (200 ton) per hour and a 45 metric ton (50 ... continued below

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Pages: (256 p)

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Creator: Unknown. July 31, 1990.

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Description

Development of the liquid carbon dioxide process for the cleaning of coal was performed in batch, variable volume (semi-continuous), and continuous tests. Continuous operation at feed rates up to 4.5 kg/hr (10-lb/hr) was achieved with the Continuous System. Coals tested included Upper Freeport, Pittsburgh, Illinois No. 6, and Middle Kittanning seams. Results showed that the ash and pyrite rejections agreed closely with washability data for each coal at the particle size tested (-200 mesh). A 0.91 metric ton (1-ton) per hour Proof-of-Concept Plant was conceptually designed. A 181 metric ton (200 ton) per hour and a 45 metric ton (50 ton) per hour plant were sized sufficiently to estimate costs for economic analyses. The processing costs for the 181 metric ton (200 ton) per hour and 45 metric ton (50 ton) per hour were estimated to be $18.96 per metric ton ($17.20 per ton) and $11.47 per metric ton ($10.40 per ton), respectively for these size plants. The costs for the 45 metric ton per hour plant are lower because it is assumed to be a fines recovery plant which does not require a grinding circuit of complex waste handling system.

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Pages: (256 p)

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OSTI; NTIS; GPO Dep.

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  • Other: DE92013482
  • Report No.: DOE/PC/79873-T1
  • Grant Number: AC22-87PC79873
  • DOI: 10.2172/5312704 | External Link
  • Office of Scientific & Technical Information Report Number: 5312704
  • Archival Resource Key: ark:/67531/metadc1074102

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Office of Scientific & Technical Information Technical Reports

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Creation Date

  • July 31, 1990

Added to The UNT Digital Library

  • Feb. 4, 2018, 10:51 a.m.

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  • March 2, 2018, 5:21 p.m.

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Development of the LICADO coal cleaning process, report, July 31, 1990; United States. (digital.library.unt.edu/ark:/67531/metadc1074102/: accessed September 21, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.