“…The temperature was then modulated in a sinusoidal wave around this common temperature with an amplitude of ±5 K. The procedures used to accomplish the desired temperature variation required a balance between the power input to the oven and the water flow rate in a coil surrounding the reactor. The cycle time for the temperature wave was 240 s. For this modulation time and these reaction conditions, it was previously shown (Huang et al, 1986a) that the effective thermal conductivity of the catalyst bed was 2.6 W/(m K) which ensured a uniform temperature through the bed and that the conversion would be less than 10% over the wide range of reaction temperatures studied. Kinetic data similar to those reported in detail here were found for cycle times of 300 and 360 s, which was also consistent with the earlier measurements (Huang et al, 1986a).…”