Cold flow model, full-scale

Cold flow studies have several advantages. Operation at ambient temperature allows construction of the experimental units with transparent plastic material that provides full visibility of the unit during operation. In addition, the experimental unit is much easier to instrument because of operating conditions less severe than those of a hot model. The cold model can also be constructed at a lower cost in a shorter time and requires less manpower to operate. Larger experimental units, closer to commercial size, can thus be constructed at a reasonable cost and within an affordable time frame. If the simulation criteria are known, the results of cold flow model studies can then be combined with the kinetic models and the intrinsic rate equations generated from the bench-scale hot models to construct a realistic mathematical model for scale-up. 

Galtier PA, Pontier RJ, Patureaux TE. Near full-scale cold flow model for the R2R catalytic cracking process. In Girace JR, Shemilt LW, Bergougnou MA, eds. Fluidization VI. New York Engineering Foundation, 1989, pp 17-24. 

Galtier, P.A. and Ponder, R.J., "Near Full-Scale Cold Flow Model For the R2R Catalytic Cracking Process", in FluidizationIV, J.R. Grace, L.W. Shemilt and M.A. Bergougnou, Eds., United Engineering Trustees, Inc., New York, 17-24 (1989). 

Partial reactor modeling was then used to shed light on the factors controlling penetration in the ACR. A full-scale, cold-flow simulation of the reactor throat region was performed. The tests were conducted in a trisonic wind tunnel at the McDonnell-Douglas Aerophysics Laboratory (13). 

---