Date of Award


Degree Type


Degree Name

Doctor of Philosophy


The reactions of methyl mercaptan and hydrogen sulphide with air were studied separately in a tubular flow reactor which was essentially an electrostatic precipitator of the wire-cylinder type.;The products of both reactions were identified by spectroscopic methods such as NMR, IR, and MS as well as analytical methods. The oxidation products of methyl mercaptan found were water, sulphur dioxide, and dimethyl sulphone as end products and dimethyl disulphide and dimethyl sulphide as intermediates. These intermediates reacted further by using higher values of current and/or mean residence time of gaseous mixtures through the reactor. On the other hand, the oxidation products of hydrogen sulphide were always water and sulphur dioxide.;Kinetic data were collected using a calibrated gas chromatograph. These data were then used to evaluate the kinetic parameters of the reactions.;There were indications that the main role of the corona discharge was to produce several species of excited molecular oxygen which were responsible for the oxidation of the present sulphur compounds. The concentration of these species was correlated to the electrical parameters of the system.;Variables energy yield and volumetric rate were used to present the data obtained. The effect of the operating conditions and the reactor dimensions on these two variables was studied in detail.



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