FLASH PYROLYSIS OF COAL SUB-STRUCTURES - A MECHANISTIC AND KINETIC EVALUATION

The pyrolytic reactions of benzoic acid have been studied at three tem peratures in the range from 800 to 1300 K utilizing the carbosieve tec hnique, i.e. by pyrolysis of benzoic acid-loaded carbosieve. The initi al organic products originating from benzoic acid are benzene and phen yl radicals, the eventual major reaction products being benzene and bi phenyl. The reaction scheme was rationalized and quantified based on t he application of stable isotope techniques in combination with theore tical reaction modelling, thus displaying the ''hidden reaction paths' '. The kinetics of the initial reactions are discussed.