The effect of aspect ratio on the stability of coal-water slurries

Feridun Boylu*, A. A. Sirkeci, Gündüz Atesok

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

One of the main objectives in coal-water slurries (CWS) technology is to keep the slurry stable without coal sedimentation after certain storage times. Therefore, some chemicals and stabilizers are used to control the CWS stability. Stabilizers create a network system among the coal particles and make them stable. The major control factors for the CWS stability are coal rank, coal size, stabilizer type and chemicals' concentrations. However, the effect of particle shape depending on coalification should be given attention. In this study, coal particle shape factor (aspect ratio) depending on coalification degree was investigated to make clear how this parameter affects CWS stability.

Original languageEnglish
Title of host publication24th Annual International Pittsburgh Coal Conference 2007, PCC 2007
Pages2298-2309
Number of pages12
Publication statusPublished - 2007
Event24th Annual International Pittsburgh Coal Conference 2007, PCC 2007 - Johannesburg, South Africa
Duration: 10 Sept 200714 Sept 2007

Publication series

Name24th Annual International Pittsburgh Coal Conference 2007, PCC 2007
Volume4

Conference

Conference24th Annual International Pittsburgh Coal Conference 2007, PCC 2007
Country/TerritorySouth Africa
CityJohannesburg
Period10/09/0714/09/07

Keywords

  • Aspect ratio
  • Coal rank
  • Coal-water slurries
  • Sedimentation
  • Stability

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