Abstract: In light of the micro-hydrocarbon generation mechanism of organic matter, by means of the electron-resonance in valence-bond theory and the solid energy band in molecular orbital theory, in terms of the organic matter structure characteristic of coal, this paper presents the specific reaction of bonding-electron off-domain and add-hydrogen resonance for the coal-derived hydrocarbon, and makes satisfactory interpretation of the micro-mechanism for coal-derived hydrocarbon.

Key words: coal-derived hydrocarbon, microphysical interpretation, electron-resonance, solid energy band