One- and two-stage coprocessing of coal and petroleum residues

W. Steedman, T. Flynn, W. Kemp, K. D. Bartle, N. Taylor, S. Wallace

Research output: Contribution to journalArticle

Abstract

The potential of two atmospheric and three vacuum petroleum residues as feedstocks for coprocessing with a UK bituminous coal has been assessed. In a simulation of the British Coal Corporation's two-stage liquid solvent extraction process, the residues were first examined as prospective solvents in the extraction stage. Coal conversions varied from about 6-37%, the best yields being obtained from residues with a high asphaltene content or a high (aromatic and polar) content in the maltene-fraction. These yields compare poorly with those obtainable with coal-derived solvents. In two cases, catalytic prehydrogenation of the petroleum residue improved conversions to about 65%, but these results were not reproducible. One-stage coprocessing at 450°C and 12 MPa hydrogen pressure was much more successful. Coal conversions of about 75% were obtained at optimum conditions. Conversions under one-stage coprocessing were insensitive to the nature of the residue.

Original languageEnglish
Pages (from-to)299-307
Number of pages9
JournalInternational Journal of Energy Research
Volume18
Issue number2
Publication statusPublished - Mar 1994
EventProceedings of the EC Conference - Palermo, Italy
Duration: 1 Oct 19901 Oct 1990

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petroleum
coal
asphaltene
bituminous coal
hydrogen
liquid
simulation

Cite this

Steedman, W., Flynn, T., Kemp, W., Bartle, K. D., Taylor, N., & Wallace, S. (1994). One- and two-stage coprocessing of coal and petroleum residues. International Journal of Energy Research, 18(2), 299-307.
Steedman, W. ; Flynn, T. ; Kemp, W. ; Bartle, K. D. ; Taylor, N. ; Wallace, S. / One- and two-stage coprocessing of coal and petroleum residues. In: International Journal of Energy Research. 1994 ; Vol. 18, No. 2. pp. 299-307.
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Steedman, W, Flynn, T, Kemp, W, Bartle, KD, Taylor, N & Wallace, S 1994, 'One- and two-stage coprocessing of coal and petroleum residues', International Journal of Energy Research, vol. 18, no. 2, pp. 299-307.

One- and two-stage coprocessing of coal and petroleum residues. / Steedman, W.; Flynn, T.; Kemp, W.; Bartle, K. D.; Taylor, N.; Wallace, S.

In: International Journal of Energy Research, Vol. 18, No. 2, 03.1994, p. 299-307.

Research output: Contribution to journalArticle

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Steedman W, Flynn T, Kemp W, Bartle KD, Taylor N, Wallace S. One- and two-stage coprocessing of coal and petroleum residues. International Journal of Energy Research. 1994 Mar;18(2):299-307.