Characteristic Diagram for Coal-derived Liquid

Abstract

The aromatic carbon fraction, i. e. arornaticity f_a obtaind from ¹³C NMR spectrum and atomic H/C ratio obtaind from elemental analyses are important parameters to characterize the coal-derived materials. The characteristic diagram, the correlation between the f_a and atomic H/C ratio for hydrocarbons, is shown to be useful to characterize the coal liquefaction products and to estimate the reaction path-way relating with the coal liquefaction.
In this paper, we propose a relation between the amount of consumed hydrogen, AH2, for the ring hydrogenation reaction, and the variation of f_a. The correlation is given in the following equation.
ΔH₂=37× (Δf_a)
ΔH₂ (mol-H₂/kg-compound)
where Ma is the differences of Δf_a before and after hydrogenation reaction.
This correlation can be applied the hydrogenation reaction products of anthracene oil.