Simulation of Multi Component Distillation Column Using Open-Source Simulator

Chemical Engineering

Process simulation is a successful tool for design, optimization and control of chemical processes. Chemical industry process simulations support the entire life cycle of a chemical process from development, design and construction to optimization of operation. Distillation is the most commonly used separation process in the chemistry and petrochemical industry, mostly employed in continuous processes but also used in discontinuous processes. Multicomponent distillation use for separation of more than two components. For such operation needs two columns for separation of components. Most of the distillation processes involve with more than two components. The multicomponent separations are carried out by using the same type of distillation columns, reboilers, condensers, heat exchangers. In multicomponent systems same degree of freedom is not achieved because of the presence of other components. We simulating Rig-Distillation column which giving results as Condenser Duty and Reboiler Duty 27773.3 KW and -28958 KW resp. Also have Min. R. R. equal to 0.57136*1.5 = 0.85704. Simulated Rig-Distillation column also Flow Stream Data and Temperature Data At Various Stages. Min. number of feed stages are 12 excluding Reboiler. As per results simulation gives quick results for multicomponent distillation column that also getting from practically from piolet plants. Practical methods is time consuming and has costly. We simulating Rig-Distillation column which giving results as Condenser Duty and Reboiler Duty 25838 KW and -31215.4 KW resp. Also have Min. R. R. equal to 0.57136*1.1 = 0.6284. Simulated Rig-Distillation column also Flow Stream Data and Temperature Data At Various Stages. Min. number of feed stages are 20 excluding Reboiler. Optimal feed condition is 9. We simulating Rig-Distillation column which giving results as Condenser Duty and Reboiler Duty 26744.7 KW and -32121.5 KW resp. Also have Min. R. R. equal to 0.57136*1.2 = 0.6856. Simulated Rig-Distillation column also Flow Stream Data and Temperature Data At Various Stages. Min. number of feed stages are 17 excluding Reboiler. Optimal feed condition is 7. We simulating Rig-Distillation column which giving results as Condenser Duty and Reboiler Duty 27651 KW and -33028.5 KW resp. Also have Min. R. R. equal to 0.57136*1.3 = 0.7427. Simulated Rig-Distillation column also Flow Stream Data and Temperature Data At Various Stages. Min. number of feed stages are 16 excluding Reboiler. Optimal feed condition is 7 We simulating Rig-Distillation column which giving results as Condenser Duty and Reboiler Duty 27651 KW and -33934.8 KW resp. Also have Min. R. R. equal to 0.57136*1.4 = 0.7999. Simulated Rig-Distillation column also Flow Stream Data and Temperature Data At Various Stages. Min. number of feed stages are 14 excluding Reboiler. Optimal feed condition is 7. As per simulation date we simulating the rig. Column for different R. R. ration as taken Min. R. R. *1.1, Min. R. R. *1.2, Min. R. R. *1.3, Min. R. R. *1.4 and Min. R. R. *1.5. By simulation study value of min. reflux ration increase the decrease in the number of stages and but increase the reboiler duty and coolant load also increase for condenser. For R.R. 1.5*Min, R.R. is optimum value where optimum number of stages are requires and also min. heat load on reboiler and min. coolant supply to condenser. Hence, according to results, the best suitable value while selecting R. R. will be 1.5 times of Min. R. R.

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