An experimental study on binderless briquetting of low-rank coals

Y. Han, A. Tahmasebi, J. Yu, X. Li, C. Meesri

Research output: Contribution to journalArticleResearchpeer-review

25 Citations (Scopus)

Abstract

The potential of binderless briquetting as a means of transforming low-rank coals into low moisture high grade solid fuel products has been studied. Using two dried low-rank coals, binderless briquettes with high mechanical strength have been successfully produced through mechanical compression. An increase in heating value was achieved as a result of moisture reduction in the briquettes compared to as-received coals. The residue moisture content in the briquettes had a predominant effect on briquetting characteristics and there existed an optimum moisture content for the maximum briquettes strength. The chemical structure and wettability of binderless briquettes were analyzed using FTIR and contact angle measurement. The results showed that hydrophobicity and chemical structure significantly affected the briquette properties.

Original languageEnglish
Pages (from-to)749-756
Number of pages8
JournalChemical Engineering and Technology
Volume36
Issue number5
DOIs
Publication statusPublished - May 2013
Externally publishedYes

Keywords

  • Binderless briquetting
  • Briquette strength
  • Low-rank coal
  • Moisture content upgrading

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