Liquefaction of coal macerals in a novel flowing-solvent reactor
This report presents product yields from pyrolysis and liquefaction experiments performed on sets of whole-coals and maceral concentrates, and the results from work on the analytical characterisation of the products. The liquefaction behaviour of individual coal maceral concentrates was investigated, using a novel flowing-solvent reactor. The design of the reactor enables time-temperature profiles to be accurately specified and closely controlled; in order to minimise secondary reactions of product species, reaction products are continuously swept out of the reaction zone by a flow of liquefaction solvent/vehicle. Conversions from the flowing-solvent reactor were compared with results from a mini-bomb reactor and the effect of extended residence times of products in the reaction zone of batch reactors was investigated. Parallel atmospheric pressure and vacuum pyrolysis experiments were carried out in a wire-mesh reactor (similarly designed to minimise secondary reactions of products of primary release) in order to compare product yields and structures between pyrolysis and liquefaction.
Bibliographic Reference: EUR 14228 EN (1992) 133 pp., ECU 8
Record Number: 199210944 / Last updated on: 1994-12-02
Original language: en
Available languages: en