Question 1 (25 %] a A packed bed microreactor was used for the steam reforming of methanol with a CuO/ZnO/Al2O3 based catalyst. The overall reaction is shown below: CH3OH + H2O CO2 + 3H2 (a) Using the Weisz-Prater method, determine whether the experiments in Table 1 were performed under conditions of negligible diffusional limitations and estimate the intrinsic reaction rate constant. Experimental parameters: DeA= 1-108 m?s1, p=600 kg m3, C4,0= 2 mol m3 (10 %) (b) A 30-cm long packed-bed reactor with internal diameter of 2 mm was used for a pilot- scale operation. The reactor was packed with spherical pellets of radius rp=3-10-4 m. Estimate the reactor space-time to achieve 95% conversion. [8%] (c) To increase process throughput, 200 identical packed-bed intensified reactors [as those in (b)] were employed in a multi-tubular arrangement. Estimate the volumetric flow rate to achieve 99% conversion. (7%) Table 1. Experimental data at constant operating condition in a differential reactor. Exp Observed reaction rate, l'A Spherical pellet radius, Conversion (%) (mol kgs) rp (m) 0.003 4.104 62 2 0.009 2.10-4 74 3 0.015 2-10-5 95 1