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DIP_simu_05

DIP_simu_05.ppt. Analysis Links Sensitivity. BEN. 1 (82). MCB. 2 (4.16). 3 (3.89). ODCB. PDCB. 4 (1.0). 6 (0.32). 5 (0.275). 123TCB. 124TCB. Load example file: DIP_MCB_d.apw. !!. RUN. /Data /Results Summary /Streams. R-310: Results. R-310: Results. REACTOR. Run.

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DIP_simu_05

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  1. DIP_simu_05.ppt • Analysis • Links • Sensitivity

  2. BEN 1 (82) MCB 2 (4.16) 3 (3.89) ODCB PDCB 4 (1.0) 6 (0.32) 5 (0.275) 123TCB 124TCB Load example file: DIP_MCB_d.apw

  3. !! RUN /Data /Results Summary /Streams R-310: Results

  4. R-310: Results REACTOR Run DIP_MCB_e.apw

  5. Write an Excel file to calculate conversion and selectivity using links to component molar flows in Aspen. • Open a new file in Excel. • Select required component molar flow in Aspen. • [Right-click] /Copy • Select corresponding cell in Excel. • [Right-click] /Pegado especial: Pegar vínculos=ON [Aceptar] DIP_MCB_e.xls

  6. Calculate again at a reaction temperature of 80ºC: Errors are generated: • Reinicializar y repetir a 60ºC: Da errores. • Reinicializar y repetir a 40ºC: • DIP_MCB_f.xls T = 40ºC

  7. Sensitivity: analyze reaction temperature influence on conversion and selectivity. /Model Analysis Tools/Sensitivity: New, T-REAC

  8. Options: /Model Analysis Tools/Sensitivity/T-REAC: Optional /Model Analysis Tools/Sensitivity/T-REAC/Results DIP_MCB_g.apw

  9. According to last results, a low temperature (< 40ºC) value must be set in the reactor in order to obtain an acceptable selectivity value. Now, the combined influence of temperature and residence time will be analyzed. • /Model Analysis Tools/Sensitivity/T-REAC: Vary • Reduce temperature evaluation to 20, 30 and 40ºC. • Add a second ‘vary’ variable: residence time = 0.1, 0.5, 1, 2, 5, 10 y 25 hours. • RUN • Build a parametric curve with the results. • Try to reproduce the graph as close as possible to the one shown in the next slide. • DIP_MCB_h.apw

  10. DIP_MCB_i.apw

  11. Selected conditions DIP_MCB_j.apw

  12. Simulate the process with the selected conditions. • /Model Analysis Tools/Sensitivity/T-REAC: Hide • T in R-130 = 40ºC. • Phase-Residence time = 5 h DIP_MCB_k.apw • Adjust feed CL2 mole flow (stream 2) to obtain a small CL2 excess (2%mol) at the exit (stream 3): (CL2)2 = 33.65 kmol/h DIP_MCB_l.apw

  13. The recommended flow pattern is multiple CSTRs in series. Simulate the system by dividing the volume of the previous reactor (residence time) between two half-volume reactors in series. Maintain the condition of 2 mol% of CL2 in the output gas. Calculate Conversion and Selectivity.

  14. DIP_MCB_m.apw

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