Presto program

Kazue Kurihara, The PRESTO Program Structure and Functional Properties, Elsevier, Amsterdam, The Netherlands, 1997. 

Acknowledgements This work was supported by the PRESTO program of the Japan Science and Technology Agency (JST), and a Grant-in-Aid for Scientific Research from MEXT and JSPS. J.B. is a recipient of a JSPS Postdoctoral Fellowship. 

Acknowledgments We thank all our collaborators and colleagues, whose names appear with us in a number of references, for their contributions. We are also grateful for financial supports from JST-PRESTO program, a Grant-in-Aid for Scientific Research in a Priority Area Chemistry of... 

Effectiveness Factors Calculated with the Simulation Program Presto Kinetics (Lp0re = 6.75-10-4 m -+... 

Morikami, K., T. Nakai, et al. (1992). Presto(protein engineering simulator)—A vectorized molecular mechanics program for biopolymers. Computers Chemistry 16(3) 243-248. 

Based on the effective kinetics and heat transfer parameters, solution of the differential equations by numerical integration in the radial and axial direction is carried out by programs, for example such as Presto-Kinetws (CiT, http //www.cit-wulkow.de/), which was frequently used in this book. 

Equations (6.9.25)-(6.9.27) were solved by the above-mentioned computer program Presto for the following boundary conditions at z=0 (reactor inlet) ... 

The results presented in Figures 6.11.17-6.11.21 were calculated with the commercial program Presto-Kinetics (solver for differential equations, www.cit-wulkow. de). The maximum temperature of the ARGE catalyst is about 260 °C as the Fe catalyst then starts to deactivate by sintering, which substantially lowers the internal surface area (Kuntze, 1991). Hence, to be on the safe side, 250 °C was chosen as the maximum allowable temperature. 

If the parameters of the kinetics and heat transfer are known, the PA synthesis can be simulated by modern computers and programs to solve differential equations. Here this was carried out by the commercial program Presto-Kinetics (www.cit-wulkow.de), which is frequently used in this book. The results are given in Figure 6.13.1 by the axial profiles of temperature (tube axis), o-xylene conversion, and selectivity to phthalic anhydride for a tube length of 3 m. 

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