Composition and Structure of Coal Organic Mass. Analytical Review

Abstract

The research works dedicated to the formation regularities of solid fuels chemical structure were analyzed. Modern conceptions of coals chemical structure, which are becoming deeper owing to tooling growth and facts accumulation, were examined by means of critical comparison of different hypothetical models of solid fuels “molecular” structure. The most general points of the respective theories were formulated, according to which “soft” influence on coal structure primary elements bonds system allows bringing its chemical potential to the maximum.

Composition and Structure of Coal Organic Mass. 3. Dinamics of Coal Chemical Structure During Metamorphism

“…Accordingly to the "guest-master" conception it is necessary to differentiate them as mobile component and "filtering lattice". The same differentiation of coal structural fragments (but in less definite form) is the basis for self-conjunction theory and theory of self-associated multimer [3].…”

Thermochemical Conversion of Coal under Microwave Radiation

“…In the works [1,2], an organic coal substance is represented as a collection of packets of condensed aromatic nucleus with side non-aromatic groups including oxygen, nitrogen, sulfur and other heteroatoms that chemically bind the neighboring packets to the spatial polymer. This view suggested that in the course of carbonization in lateral radicals, the carbon-oxygen bonds are replaced by carbon-carbon bonds [3].…”