Release behavior of trace elements from coal during high-temperature processing

Yasushi Sekine, Kunihisa Sakajiri, Eiichi Kikuchi, Masahiko Matsukata

Research output: Contribution to journalArticle

40 Citations (Scopus)

Abstract

High-temperature coal utilization processes (combustion, gasification and pyrolysis) emit toxic trace elements into the atmosphere, where they affect the environment and human health. We carried out coal combustion and gasification experiments using several kinds of coals at various temperatures and atmospheric conditions to examine the release behavior of trace elements. Results showed that Group 1 and 2 metals such as Hg, Se, Sb, and Zn were partly released from coal during combustion, gasification and pyrolysis. Oxygen or steam in the operating atmosphere affected the behavior of Hg, Se, Sb, and Zn release from coal.

Original languageEnglish
Pages (from-to)210-215
Number of pages6
JournalPowder Technology
Volume180
Issue number1-2
DOIs
Publication statusPublished - 2008 Jan 14

Keywords

  • Ash behavior
  • Combustion
  • Emission of trace metals
  • Gasification

ASJC Scopus subject areas

  • Chemical Engineering(all)

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