MODELS OF TAR FORMATION DURING COAL DEVOLATILIZATION

The purpose of this paper is to describe the DVC model, compare it to the DISCHAIN model, and assess the important features of such models. Both the DVC and DISCHAIN models simulate the competitive tar and char forming process by a statistical analysis of bridge breaking and char forming reactions in a polymer. The authors conclude that the application of statistical models of depolymerization, vaporization, and crosslinking such as DISCHAIN and the FG-DVC model represents a potential advance in understanding and predicting tar and char formation in coal pyrolysis.