The curve-fitting method for the analysis of solid state ^<13>C n.m.r. spectrum of coal was developed. The spectrum was divided into 24 peaks which were grouped into 9 carbon types, which can be applied to all types of coals from low to high rank. The yields of products (gas, water, oil and residue) obtained by coal liquefaction at PSU Research Center were fairly correlated with the n.m.r. data of coals used.
