Simulation and energy optimization of the stabilizer tower of a pyrolysis gasoline hydrogenation unit |
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| Authors: | Mojtaba Shafiee Ali Jalali Mohammadali Amirhamzeh |
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| Affiliation: | 1. Department of Chemical Engineering, Jundi-Shapur University of Technology, Dezful, Iran;2. Department of Chemical Engineering, Amirkabir University of Technology (Tehran Polytechnic), Mahshahr, Iran;3. Department of Polymer and Color Engineering, Amirkabir University of Technology (Tehran Polytechnic), Mahshahr, Iran |
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| Abstract: | Energy optimization of second distillation tower of a pyrolysis gasoline hydrogenation unit has been studied by the thermal cycle of vapor recompression method. The mentioned cycle is connected to the second distillation tower of the stabilizer of pyrolysis gasoline, and the results are found promising. The composite pinch curve for both the current and the optimized methods are shown. Moreover, an increase in the heat transfer rate in heat exchanger E-1014 causes energy recovery in reboiler. According to simulation results, by vapor recompression to 1970 kPa and using this heat source for thermal integration, condenser and reboiler’s energies are decreased by 56.93 and 30.4 percentage, respectively. |
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| Keywords: | Composite pinch curve optimization refining thermal cycle vapor recompression |
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