Abstract
The principal components of most technical fuel gases manufactured from coal or reformed gases from methanol are hydrogen, carbon monoxide and methane. As several combustion properties of gas mixtures are governed largely by the quenching distance, it is useful to know the quenching distance of mixtures of the above components with air.
In this paper, the quenching distances of the various hydrogen-carbon monoxide-methane mixtures with air were measured. The minimum quenching distances and corre-sponding gas percentages of all hydrogen-carbon monoxide-methane mixtures were presented in a triangular diagram. Furthermore the correlation between the measured quenching distances and the burning velocities was discussed.