Thermal reactions between alkanes and H_2S or thiols at high pressure

摘要

Confined pyrolysis in gold cells of n-octane/H_2S mixtures was carried out between 310 ℃ and 350 ℃ under 700 bar for durations of 3-13 days. The main products were thiophene, alkylthiophenes, octanethiols and alkyl-thiacycloalkanes and their quantities were measured. Some experiments were also carried out at 350 ℃ on n-octane/thiol mixtures and the results were compared to those obtained with H_2S. The formation pathways of the main products, which are similar for both reactant mixtures, are proposed.