Distribution of Alkylene Bridge Bonds in Shenfu Coal
To understand the distribution of the alkylene bridge bonds which connect aromatic moieties and utilize coal effectively, Shenfu coal (SFC), its solvent extraction fractions and carbon disulfide (CS2)/tetrahydrofuran (THF) inextractable matter (RE) were subject to ruthenium ion-catalyzed oxidation (RICO). The results suggest that the carbon number of the alkylene bridge bonds range from C0 to C30 and that dominant alkylene linkage are C2 and C3 in SFC, a,w-diarylalkanes are soluble in a CS2/THF mixed solvent, whereas highly condensed aromatic species in SFC show poor solubility in the CS2/THF mixed solvent.
Zhong Cao, Yinghe He, Lixian Sun and Xueqiang Cao
Y. L. Peng et al., "Distribution of Alkylene Bridge Bonds in Shenfu Coal", Advanced Materials Research, Vols. 236-238, pp. 715-718, 2011