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Abstract

Catalytic hydroliquefactions (HL) of two coals, Freyming-France and Point of Ayr England, and their macerals were studied in a microautoclave in the presence of a H-donor solvent (tetralin). The main results of the study were related to: (i) a comparison between the behaviours of such coals or macerals in the HL process; the two raw coals showed the same total conversion and similar wt% of oil, asphaltene and preasphaltene fractions; (ii) the contribution of each maceral to the global coal liquid; no synergetic effect was found (using HL and the present type of liquid phase analysis) for a "synthetic coal"; raw coals, vitrite and exinite had the same total conversion, whereas the fusite was significantly lower; (iii) a detailed identification of some individual compounds or of series of homologous compounds; this was made for oil fractions. 25% of these fractions could be investigated by GC/MS, or 5 to 10 wt% of the initial coal. Concentrations of a large number of compounds were determined and compared from one maceral to another and general tendencies could be deduced.

Additional information

Authors: BRODZKI D, Université P & M Curie, Laboratoire Réactivité de Surface et Structure, Paris (FR);ABOU AKAR A, Université P & M Curie, Laboratoire Réactivité de Surface et Structure, Paris (FR);DJEGA-MARIADASSOU G, Université P & M Curie, Laboratoire Réactivité de Surface et Structure, Paris (FR)
Bibliographic Reference: EUR 14323 EN (1992) 74 pp., MF, ECU 4
Availability: (2)
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