Microsimulation test

The Microsimulation test (MST). Modification of the operating procedure and experimental conditions of a convential micro activity test (MAT) has led to the so-called microsimulation test (MST, see Figure 3). Basically, the reactor is a fixed bed with transient operation during the catalyst contact time. A complete description of the operation and design of the MST reactor is given by O Connor in (11). Table I gives an overview of the main differences between the MR and the MST. 

Figure 3. An outline of the microsimulation test equipment (Adapted from ref. 11.)...

Experiments with the same conditions were carried out in both the microriser (MR) and the microsimulation test (MST). The experimental results are tabulated in Table IV. The results for catalyst B are displayed in Figure 4a to 4f The same trends, displayed in Figure 4, were also found for catalyst A and C. 

Figure 4. Activity and yield plots for catalyst B based on data from the Microriser (MR) and Microsimulation test (MST). The activity plot is shown in Figure 4a. The yield plots for coke, LCO, gasoline, LPG, and fuel gas are given in Figure 4b to 4f, respectively.

Figure 5. The LPG olefmicity versus conversion for all data sets in the Microriser (MR) and Microsimulation test (MST).

Figure 7. Coke yield as a function of catalyst-to-oil ratio for the Microsimulation test (MST, Figure 7a) and the Microriser (MR, Figure 7b)...

The authors would like to thank Akzo Nobel Amsterdam for the feed, catalysts and analyses. In particular, the microsimulation test data are greatly appreciated and F.Olthof, E.Brevoord and P.O Connor are thanked for the stimulating discussions. The Netherlands Technology Foundation (STW) is acknowledged for their financial support (project ACH99.1894). 

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