Rate of formation of toluene from ethylbenzene

Abstract

The rate of formation of toluene from ethylbenzene was studied at atmospheric pressure in the temperature range of 600-725OC in conventional flow equipment. Residence times were 0.55-1.7 s, and initial partial pressures of ethylbenzene (HzO diluent) were 0.05-0.17 atm. [GI. In light of the high overall conversion of ethylbenzene studied (2-80%), the industrial-type flow equipment, and the widely differing methods of characterization and analysis, the excellent agreement with the results of [2,3,5] is worthy of note. The data are compatible with current estimates of the heat of formation of benzyl radicals [6,7).

High-pressure thermal cracking of n-hexadecane in aromatic solvents

“…Thermal Cracking of Ethylbenzene by Itself. Pyrolysis of ethylbenzene has also been studied extensively (Szwarc, 1949; Esteban et al, 1963;Crowne et al, 1969;Clark and Price, 1970;Davis, 1983). In the present study, thermal cracking of ethylbenzene by itself at 442 °C and 13.9 MPa resulted in the formation of a variety of two-ring compounds including diphenylmethane, 1,2-diphenylethane, and 2,3-diphenylbutane (the most dominant compound).…”

The study of 1-ethylnaphthalene pyrolysis in a flow reactor

“…Reactions (3) and (4) are resultant from the C-C bond scission at the benzylic site and the aromatic ring respectively. One study on ethylbenzene pyrolysis [16] suggested that the C-H homolysis is similar to reaction (2) as the major reaction mechanism, while reaction (3) was regarded as the major pathway by other studies [17][18][19][20]. As the reactions proceed, the radical pools build up, and these initiation steps give way to hydrogen abstraction reactions (5)- (8).…”