The use of non-conventional fuel sources, such as shale gas, brings new research requisites for its proper use in an environmental friendly manner. In this context, shale gas may include different sulphur containing compounds, such as methanethiol, that is also formed as intermediate during sulphur containing residues processing. The present work includes an experimental and kinetic modelling study of the oxidation of methanethiol, CH3SH, in a quartz flow tubular reactor at atmospheric pressure and in the 300-1400 K temperature range. The influence of the temperature, the O-2 concentration and the presence of H2O on the conversion regime of CH3SH and the formation of different compounds has been analysed. The experimental results have been interpreted in terms of a detailed gas-phase mechanism compiled in the present work, and the elementary steps involved in the conversion of CH3SH have been identified. In general, oxidation of CH3SH is favoured by both oxygen level and temperature, while the presence of H 2 O does not modify the CH3SH conversion profile. The main sulphur containing products are SO2,H2S and CS2, pointing to a significant role of other products, apart from SO2, for the control of pollutant emissions. (C) 2019 The Combustion Institute. Published by Elsevier Inc. All rights reserved.