Catalytic hydroliquefaction of coal macerals : Comparison with raw coal
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.
Bibliographic Reference: EUR 14323 EN (1992) 74 pp., MF, ECU 4
Record Number: 199210924 / Last updated on: 1994-12-02
Original language: en
Available languages: en