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Simulation and optimization of acrolein production through glycerol dehydration process by using aspen plus

Simulation and optimization of acrolein production through glycerol dehydration process by using aspen plus / Lee Yen Wei
Gliserol dihasilkan sebagai hasil sampingan daripada proses biodiesel. Dengan peningkatan pengeluaran biodiesel, gliserol telah menjadi tarikan untuk digunakan sebagai bahan utama dalam pelbagai proses. Proses dehidrasi gliserol telah disimulasi, dianalisis dan dioptimumkan dengan menggunakan Aspen Plus versi 8.0. Model dehidrasi gliserol telah dihasilkan dan disimulasikan menggunakan Aspen Plus. Gliserol dimasukkan ke model PFR di 0.20kg /jam. Pecahan jisim larutan yang dimasukkan ialah 0.2. Suhu dan tekanan aliran masuk ditetapkan pada 235°C dan 1 bar masingmasing. Model PFR dalam simulasi Aspen yang menunjukkan reaktor tiub dalam modul eksperimen dengan parameter yang ditetapkan dengan sewajarnya. Panjang reaktor adalah 13 cm dan diameter tiub adalah 1 cm. Keputusan yang diperolehi menunjukkan bahawa trend keputusan simulasi mengikut sepenuhnya trend daripada sastera dalam kedua-dua penukaran gliserol dan acrolein pemilihan. Tambahan pula, analisis sensitiviti dilakukan dengan menggunakan Aspen Plus dengan tiga parameter berbeza. Nilai-nilai yang optimum diperolehi dalam analisis sensitiviti adalah 235 °C dan 5 bar. Dalam seksyen pengoptimuman, fungsi objektif adalah untuk memaksimumkan kadar aliran molar acrolein. Pengoptimuman itu mampu memberi nilai tertinggi pada 0.00020136 kmol /jam iaitu 92.7 % apabila suhu optimum dan tekanan adalah 235 °C dan 5 bar. _______________________________________________________________________________________________________ Glycerol is produced as byproduct of biodiesel process with increasing biodiesel production, glycerol has become more economically interesting to use as a starting material in various processes. Glycerol dehydration process has been simulated, analyzed and optimized with the aid of Aspen Plus version 8.0. Glycerol dehydration model was developed and simulated in Aspen Plus. Glycerol is fed to the PFR model at 0.20 kg/hr. The mass fraction of feed solution is 0.2. Temperature and pressure of feed streams are set as 235 °C and 1 bar respectively. PFR model in the aspen simulation represent the tubular reactor in the experimental module and the parameters are set accordingly. Length of the reactor is 13 cm and the diameter of the tube is 1 cm. The results obtained revealed that the simulation results completely follow the trend of the experimental results from literature in both glycerol conversion and acrolein selectivity. Furthermore sensitivity analysis was performed in Aspen Plus with three operating parameters. The optimum values obtained in sensitivity analysis is 235 °C and 5 bar. In optimization section, the objective function is to maximize the molar flow rate of acrolein. The optimization was able to give highest optimized value at 0.00020136 kmol/hr which is 92.7 % when the optimum temperature and pressure were 235 °C and 5 bar.
Contributor(s):
Lee Yen Wei - Author
Primary Item Type:
Final Year Project
Identifiers:
Accession Number : 875005653
Language:
English
Subject Keywords:
Glycerol; biodiesel; economically
First presented to the public:
6/1/2015
Original Publication Date:
8/10/2020
Previously Published By:
Universiti Sains Malaysia
Place Of Publication:
School of Chemical Engineering
Citation:
Extents:
Number of Pages - 72
License Grantor / Date Granted:
  / ( View License )
Date Deposited
2020-08-10 16:57:02.187
Submitter:
Mohd Jasnizam Mohd Salleh

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