The removal of pyritic sulfur from Askale lignite in aqueous suspension by nitric acid

Karaca S., AKYUREK M., Bayrakceken S.

FUEL PROCESSING TECHNOLOGY, vol.80, no.1, pp.1-8, 2003 (SCI-Expanded) identifier identifier

  • Publication Type: Article / Article
  • Volume: 80 Issue: 1
  • Publication Date: 2003
  • Doi Number: 10.1016/s0378-3820(02)00026-7
  • Journal Name: FUEL PROCESSING TECHNOLOGY
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Page Numbers: pp.1-8
  • Keywords: desulphurization, pyritic sulfur, Turkish lignite, 2 TURKISH LIGNITES, OXIDATION, DESULFURIZATION, KINETICS, COAL, CHLORINOLYSIS
  • Ataturk University Affiliated: Yes

Abstract

The removal of pyritic sulfur from a Turkish lignite in aqueous suspension by nitric acid was investigated. The effects of particle size ( - 60, - 100 and - 200 mesh), reaction time (0 - 10 800 s), nitric acid concentration (5-30 wt.%), temperature (25-103 degreesC) and speed -of stirring (0.75-20 s(-1)) were studied. The pyritic sulfur was quantitatively removed at boiling temperature (approximate to103 degreesC in Erzurum) in 25% HNO3 solution. (C) 2002 Elsevier Science B.V. All rights reserved.