Neftepererabotka i neftekhimiya
Issue 11, 2025
Mathematical Modeling of Technological Processes
ASSESSING THE IMPACT OF THE PUMPAROUND REGIME ON THE HYDRODYNAMIC REGIME IN A COMPLEX DISTILLATION COLUMN
Gubkin Russian State University of Oil and Gas (National Research University), Moscow, Russia
Corresponding author nassifkassem1@gmail.com
doi: 10.65402/npnh.2025.11.007
UDC: 621.522.3
Received: 14.08.2025
Pages 54-62
Abstract. This study analyzed and assessed the impact of the proposed pumparound regime (with increased flow rates and reduced temperature difference between the withdrawal and return flow of the pumparound) on the hydrodynamic regime of a complex distillation column. Calculations of the flooding coefficient for the pumparound zone were performed using the methodology presented in the study. In addition, a methodology for determining the onset of tray flooding and determining the optimal fluid flow rate of the pumparound.
Key words: pumparound, circulation reflux (PA), pumparound flow rate, temperature difference, internal contact device flooding factor
For citation: Kassem N. Assessing the impact of the pumparound regime on the hydrodynamic regime in a complex distillation column. Neftepererabotka i neftekhimiya. 2025, no. 11, pp. 54-62. (In Russ.) DOI 10.65402/npnh.2025.11.007