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Bio-diesel production using homogeneous catalyst Product yield Optimization

Bio-diesel production using homogeneous catalyst Product yield Optimization / Teng Xiau Jeong

Abstract Pengurangan bahan api fosil telah membawa kepada kebangkitan penyelidikan tenaga boleh diperbaharui. Bio-diesel merupakan antara yang paling diminati. Simulasi pengoptimuman penghasilan bio-diesel (Asid Lemak Metil Ester atau FAME) daripada sisa minyak sawit memasak (WCPO) telah dijalankan dalam Aspen Plus. Reaksi utama yang terlibat dalam menghasilkan FAME ialah pengesteran asid lemak bebas (FFA) dan trans-pengesteran asid lemak (FA) dalam WCPO. Kaedah penumpuan terbina daripada Aspen Plus ialah Programming Quadratic Sequential (SQP). Simulasi Aspen dengan penetapan tetap telah dijalankan di mana RTRANS beroperasi pada 57.74 ° C, 4 bar; RTRANS2 pada 45.15 ° C, 4 bar; dan RTRANS 3 pada 58.09 ° C, 4 bar sebagai 'kes Base' dengan hasil bio-diesel yang tinggi sebanyak 90.39%. Pengoptimuman ini memberi tumpuan kepada reaktor yang menjalani tindakbalas trans-pengesteran. Pengoptimuman suhu operasi dan tekanan operasi dilakukan secara berasingan untuk RTRANS, RTRANS2 dan RTRANS3 demi menentukan kepentingan faktor tersebut terhadap hasil bio-diesel. Suhu operasi mempunyai kesan yang lebih ketara terhadap hasil bio-diesel berbanding dengan tekanan operasi. Pengoptimuman dijalankan oleh Aspen Plus membuktikan bahawa hasil yang lebih tinggi pada 90.56% bio-diesel boleh dicapai dengan keadaan operasi yang agak rendah pada 23.34 ° C dan 2.60 bar untuk RTRANS, 20 ° C dan 2.59 bar untuk RTRANS2, 20.05 ° C dan 2.60 bar untuk RTRANS3. _______________________________________________________________________________________________________ The depletion of fossil fuel has led to the rise of research of renewable energy and bio-diesel is among the most interested ones. The optimization of production of biodiesel (Fatty Acid Methyl Ester or FAME) from waste cooking palm oil (WCPO) was simulated in Aspen Plus. The main reactions involved in producing FAME is esterification of Free Fatty Acid (FFA) and trans-esterification of Fatty Acid (FA) in the WCPO. The built-in convergence method in Aspen Plus is Sequential Quadratic Programming (SQP). Aspen simulation was run with the default setting where RTRANS operates at 57.74 °C, 4 bar; RTRANS2 at 45.15 °C, 4 bar; and RTRANS 3 at 58.09 °C, 4 bar as ‘Base case’ with a high yield of bio-diesel at 90.39%. The optimization is focused on the reactors undergoing the trans-esterification reaction. Optimization was done separately on operating temperature and operating pressure of RTRANS, RTRANS2 and RTRANS3 to determine the significance of impact of the variable towards bio-diesel yield. Operating temperature has a more significant impact towards yield of bio-diesel. The optimization carried out by Aspen Plus proved that a higher yield of 90.56% of bio-diesel could be achieved with a relatively lower operating conditions at 23.34°C and 2.60 bar for RTRANS, 20 °C and 2.59 bar for RTRANS2, 20.05 °C and 2.60 bar for RTRANS3.

Contributor(s): Teng Xiau Jeong - Author Primary Item Type: Final Year Project Identifiers: Accession Number : 875007575 Language: English Subject Keywords: depletion; fossil fuel; renewable energy First presented to the public: 6/1/2018 Original Publication Date: 7/18/2018 Previously Published By: Universiti Sains Malaysia Place Of Publication: School of Chemical Engineering Citation: Extents: Number of Pages - 61 License Grantor / Date Granted:   / ( View License ) Date Deposited 2018-07-18 10:44:01.066 Date Last Updated 2019-01-07 11:24:32.9118 Submitter: Mohd Jasnizam Mohd Salleh

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