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Distillation column design software performs rigorous calculations of material, energy, and phase balances based on the properties of the feed materials, the desired production volume, and the specifications of the products. It provides property parameters for the hydraulic design and verification of the column internals, estimates the required column diameter, and optimizes the structural parameters of these internals. Finally, it selects a design solution that meets the requirements by taking into account the product data provided by manufacturers. Design results of the distillation column and arrangement of internal components; Features of the two-phase simulation distillation column design software: 1. This software for controlling distillation column design via two-phase simulation is capable of performing hydraulic calculations related to the internal components of the column. It can be used for the design and verification of plate columns, as well as structured and random packing columns. It can calculate parameters such as the system limit, flooding capacity, pressure drops across trays and packing, and tray efficiency. Additionally, it can automatically generate load performance charts for trays and packing, allowing for the analysis of the column’s performance under normal and abnormal operating conditions ; 2. The design software is capable of performing rigorous calculations for material, energy, and phase balance, featuring equilibrium stage models and rate models. Users adjust the stage efficiency or Murphree efficiency to correct the non-ideal characteristics of the equilibrium stage model, thereby making the simulation results more consistent with the actual performance of the tower. The rate model is based on mass and heat transfer principles, and it is capable of simulating the non-equilibrium mass and heat transfer processes that actually occur in the separation stages. The numerical methods for solving nonlinear equation systems in distillation column modules include the Bubble Point (BP) method and the Sum of Fluxes (SR) method, as well as the more complex Simultaneous Correction (SC) method, which encompasses the Gauss-Newton, Marquardt, modified Gauss-Newton, and modified Marquardt methods, to assist users in dealing with systems that are difficult to converge ; 3. Bistatic simulation control can simulate distillation, absorption, and desorption processes as well as continuous and batch operations. It is also capable of modeling more complex thermally coupled multi-column distillation systems. It allows for the design and verification of individual columns, as well as steady-state and dynamic simulations of the entire process, thereby assisting users in optimizing the process flow and testing the dynamic performance of automatic control systems ; 4. Bistatic simulation can be combined with the manufacturer’s product documentation to provide users with specialized customization services ; 5. It can generate standard and customized selection reports in various formats such as Excel, PDF, and DOC. Supports Chinese, English, or bilingual Chinese-English versions. Distribution diagram of distillation column selection data and tray load performance diagram; Dynamic simulation control flow chart for three-component thermally coupled distillation system