Distillation of a Complex Mixture. Part I: High Pressure Distillation Column Analysis: Modeling and Simulation

Abstract

In this analysis, based on the bubble point method, a physical model was established clarifying the interactions (mass and heat) between the species present in the streams in circulation in the column. In order to identify the externally controlled operating parameters, the degree of freedom of the column was determined by using Gibbs phase rule. The mathematical model converted to Fortran code and based on the principles of: 1) Global and local mass conservation balance, 2) Enthalpy balance, and 3) Vapour-liquid equilibrium at each tray, was used to simulate the behavior of the column, concentration distributions, temperature and streams for each phase along the column at high pressure in each tray. The energy consumption at the condenser and the boiler was also evaluated using the Starling equation of state.

An innovative integrated CCHP system with water scrubbing‐based biogas upgrading unit and molten carbonate fuel cell

“…All of the used equations to show the constant performance of the distillation are named the F I G U R E 3 Schematic of distillation column simulation (modified from Refs. [39,40])…”

Modeling, Simulation, and Thermally Optimization of Thermally-Coupled Distillation Columns

“…Mathematical models of a distillation column include a set of differential equations originated from energy balance, mass balance and some thermodynamic relations (Mustapha et al, 2007;Seader & Henley, 2006). The mathematical equations are established for a general equilibrium stage, and it is sequentially is repeated to form mathematical model of a distillation column.…”

“…In the bubble-point technique, temperature and flow rate of vapor in each stage are tearing variables. By implementing the bubble-point algorithm and identifying the operation parameters, iterative calculations in numerical manipulated software are utilized to determine the (Mustapha et al, 2007):…”