Vapour-liquid equilibrium data series

J. Gmehling, U. Onken, Vapour-Liquid Equilibrium Data Collection, DECHEMA Chemistry Data Series, vol. 1, 12 parts, DECHEMA, Frankfurt am Main, 1982. 

Ginehling, J. and Onken, U., Vapour-Liquid-Equilibrium Data Collection, in Chemistry Data Series, DECHEMA, Vol. I... 

If the Dechema series is unavailable, this single volume covers a great many common industrial mixtures together with vapour/hquid equilibrium diagrams. Maczynski, A. and Bilinski, A. (1974-1985) Verified Vapour-Liquid Equilibrium Data, Polish Academy of Sciences, Warsaw. 

Gmehling, J. Onken, U. (1977). Vapour-liquid equilibrium data collection, DECHEMA Chem. Data Series, Vol. 1. Fran urt Verlag Druckerei Friedrich Bishoff. 

Before beginning the series of runs to determine the relief size, the physical property and kinetic data need to be correlated in the form required, by the code. In some cases, the code may already have the components required on a database. In all other cases, physical property data must be found, estimated or measured and correlated in the appropriate form. Some codes have a front-end program for curve fitting of data. For tempered systems, the vapour/ liquid equilibrium models are of critical importance since errors will cause the code to open the relief system at the wrong temperature and reaction rate. It is therefore worthwhile to spend time to ensure reasonable behaviour of the vapour pressure predictions. Check that all correlations behave sensibly over the entire temperature range of relevance for relief sizing. A good test for the physical property and kinetic data supplied to the code is to first model the (unrelieved) adiabatic calorimetric test which was used to obtain the kinetic data.. . ... 

The flow and mixing in the reaction zone is approximated by a backflow cell model (BCM) with forward flow of the liquid and a back flow of vapour in the reactive part of RD zone (Roemer and Durbin, 1967). The BCM consists in a series of five perfectly mixed cells of equal size. This number of cells was estimated from the RTD data measured on KATAPAK packing (R. Dima et al., 2003). In each cell the conversion increase was calculated considering uniform distribution of the catalyst in the cells and vapour-liquid equilibrium. The influence of the internal diffusion on the process kinetics was evaluated by integrating the mass balance equations inside the catalyst pellets and calculating the effectiveness factor value. The estimated average value of the... 

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