Desulphurization of coal-derived char using mixtures of steam and methane

M. Alam, Tarasankar Debroy, Anil Kamalakant Kulkarni, C. I. Kim, H. R. Jacobs

Research output: Contribution to journalArticle

2 Citations (Scopus)

Abstract

Results of a laboratory scale experimental study on the desulphurization of coal char by steam-methane mixtures are presented. The char was prepared from a high sulphur, medium volatile, bituminous coal. The variables studied were temperature and reacting gas composition. The concentration of sulphur, specific surface area, pore size distribution and char reactivity were determined before and after the desulphurization reaction. A significant amount of sulphur was removed when coal char was reacted with 3-20 mol% steam in steam-methane mixtures in the temperature range 703-823 K. Carbon gasification was effectively eliminated by this technique. Although small increases in both the specific surface area and pore volume occurred, the reactivity of the char was practically unaffected by the desulphurization reaction.

Original languageEnglish (US)
Pages (from-to)1542-1547
Number of pages6
JournalFuel
Volume67
Issue number11
DOIs
StatePublished - Jan 1 1988

Fingerprint

Coal
Methane
Steam
Sulfur
Specific surface area
Bituminous coal
Gasification
Pore size
Carbon
Gases
Temperature
Chemical analysis

All Science Journal Classification (ASJC) codes

  • Chemical Engineering(all)
  • Fuel Technology
  • Energy Engineering and Power Technology
  • Organic Chemistry

Cite this

Alam, M. ; Debroy, Tarasankar ; Kulkarni, Anil Kamalakant ; Kim, C. I. ; Jacobs, H. R. / Desulphurization of coal-derived char using mixtures of steam and methane. In: Fuel. 1988 ; Vol. 67, No. 11. pp. 1542-1547.
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Desulphurization of coal-derived char using mixtures of steam and methane. / Alam, M.; Debroy, Tarasankar; Kulkarni, Anil Kamalakant; Kim, C. I.; Jacobs, H. R.

In: Fuel, Vol. 67, No. 11, 01.01.1988, p. 1542-1547.

Research output: Contribution to journalArticle

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T1 - Desulphurization of coal-derived char using mixtures of steam and methane

AU - Alam, M.

AU - Debroy, Tarasankar

AU - Kulkarni, Anil Kamalakant

AU - Kim, C. I.

AU - Jacobs, H. R.

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AB - Results of a laboratory scale experimental study on the desulphurization of coal char by steam-methane mixtures are presented. The char was prepared from a high sulphur, medium volatile, bituminous coal. The variables studied were temperature and reacting gas composition. The concentration of sulphur, specific surface area, pore size distribution and char reactivity were determined before and after the desulphurization reaction. A significant amount of sulphur was removed when coal char was reacted with 3-20 mol% steam in steam-methane mixtures in the temperature range 703-823 K. Carbon gasification was effectively eliminated by this technique. Although small increases in both the specific surface area and pore volume occurred, the reactivity of the char was practically unaffected by the desulphurization reaction.

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