Anode coke from low ash coal

Matthew Weisenberger, Rodney Andrews, John Craddock, Terry Rantell, David Whitlow, John Wiseman, James C. Hower

Research output: Contribution to conferencePaperpeer-review

Abstract

• Low Ash Coal ∼ 1 % • Oil agglomeration was unsuccessful to reduce ash < 0.1 % • Digest in decant oil: • (2:1) solvent:coal, 400 °C, 30 min → 80 - 90 % soluble DAF • Coked at 380 °C (2.5 hr) → 500 °C, Calcined to 1300 °C • Total Coke Yield from coal digests ∼ 35 % • Total Coke Yield from neat solvent ∼ 12 % • Low Sulfur • Coke from coal digests ∼ 0.6 % • Low V and Ni • Coke from coal digests ∼ 10 - 30 ppm • High ash metals (over spec) • Si, Fe, Ca, Na • Optical anisotropy: • Coke from coal digest - Bimodal (fine mosaic, some long range) - Ash • except in anthracene oil (all small, native QI) Lower ash coal digests could be a lower-cost additive to traditional anode pet coke constituents to lower the S content.

Original languageEnglish
StatePublished - 2017
Event34th Annual International Pittsburgh Coal Conference: Coal - Energy, Environment and Sustainable Development, PCC 2017 - Pittsburgh, United States
Duration: Sep 5 2017Sep 8 2017

Conference

Conference34th Annual International Pittsburgh Coal Conference: Coal - Energy, Environment and Sustainable Development, PCC 2017
Country/TerritoryUnited States
CityPittsburgh
Period9/5/179/8/17

Bibliographical note

Publisher Copyright:
© 2017 International Pittsburgh Coal Conference. All rights reserved.

ASJC Scopus subject areas

  • Geochemistry and Petrology
  • Geotechnical Engineering and Engineering Geology
  • Energy Engineering and Power Technology

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