关键词: 油页岩, 核磁共振, 热解, 芳碳率, 脂碳率

Abstract: In this study，the chemical structure of Huadian oil shale and its pyrolysis solid residues were investigated using the solid state 13C NMR spectroscopy. The typical organic components of shale oil and gas were also analyzed. By fitting 13C NMR spectra，a series of chemical structural parameters were derived，including aromatic carbon rate fa，fat rate of carbon fal，Cn，etc，and the variation characteristics of those structural parameters were discussed. A part of methylene group was transformed into gas or condensed to the aromatic ring before they transformed into oil. Moreover，the aromatic ring was condensed continuously during pyrolysis of oil shale. The potential yields of semi-coke and gas were proportional with fa and fal. The potential yield of the shale oil was related to methylene group rate directly.

Key words: oil shale, NMR, pyrolysis, aromatic carbon rate, fat rate of carbon