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Effect of shock heating on the strength and structure of coke produced by high-pressure carbonization of low-rank bituminous coals

Lookup NU author(s): Emeritus Professor Mark ThomasORCiD

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Abstract

In the BGL slagging gasifier, graded coal is gasified in a fixed reactor. A study has been made of the carbonization of large particles (∼25-30 mm) of three high-volatile UK bituminous coals at pressures in the range 0.5-8 MPa in an autoclave using a shock beating technique. The cokes were characterized in detail and compared with the corresponding high-pressure cokes produced under slow heating conditions. The coke yields increased significantly with increase in carbonization pressure. On the other hand, cokes produced under shock heating conditions resulted in a lower yield than the corresponding cokes prepared under slow heating conditions. These shock-heated cokes gave higher relative apparent densities and exhibited greater strength, such as higher abrasion resistance. © 1997 Elsevier Science Ltd.

Publication metadata

Author(s): Man C-K, Chan M-L, Patrick JW, Thomas KM

Publication type: Article

Publication status: Published

Journal: Fuel

Year: 1997

Volume: 76

Issue: 5

Pages: 425-430

Print publication date: 01/04/1997

ISSN (print): 0016-2361

ISSN (electronic): 1873-7153

Publisher: Elsevier Ltd

URL: http://dx.doi.org/10.1016/S0016-2361(97)85519-6

DOI: 10.1016/S0016-2361(97)85519-6

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