Calculation of distillation towers in catalytic cracking units

Autor: L. P. Gurskaya, G. V. Tarakanov, V. V. Lozin, A. K. Manovyan
Rok vydání: 1982
Předmět:
Zdroj: Chemistry and Technology of Fuels and Oils. 18:356-358
ISSN: 1573-8310
0009-3092
DOI: 10.1007/bf00725141
Popis: This article presents an equation describing the processes of mass transport and heat transfer in a main distillation tower (MDT), which takes into account the low-boiling inert gas components in the vapor phase, as well as the water vapor that enters the tower along with the wide-cut catalysate from the reactor of the unit and through the sidestream stripping towers. In tray-to-tray calculations of MDTs, it is assumed that all low-boiling gaseous components (from H/sub 2/ through C/sub 4/) in the wide-cut catalysate should be considered as inert. However, the presence of the low-boiling inert gas components in the vapor phase does affect the vapor/liquid equilibrium and the heat balances in the tower. It is concluded that the proposed method makes it possible to calculate MDTs of catalytic cracking units with a high degree of accuracy.
Databáze: OpenAIRE
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