Desain Plantwide Control Dengan Menggunakan Model Predictive Control Sebagai Supervisory Control Pada Amine Regeneration Plant

Kalidva, Rafqy Ferian (2021) Desain Plantwide Control Dengan Menggunakan Model Predictive Control Sebagai Supervisory Control Pada Amine Regeneration Plant. Undergraduate thesis, Institut Teknologi Sepuluh Nopember.

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Abstract

Indonesia merupakan salah satu negara penghasil gas alam, dalam menghasilkan gas alam dibutuhkan proses pemurnian gas alam dari gas pengotornya, dalam memenuhi kebutuhan gas alam salah satunya yaitu dengan mengoptimalkan proses daur ulang senyawa Amine pada Amine Regeneration plant, Amine Regeneration Plant memiliki fungsi untuk mendaur ulang senyawa Amine. Dalam melakukan daur ulang senyawa Amine dibutuhkan proses yang sangat stabil sehingga kemurnian larutan dapat terjaga, dikarenakan dalam plant terdapat integrasi panas, daur ulang material, dan juga komposisi kimia yang sangat banyak menyebabkan proses pada plant dapat menjadi tidak stabil sehingga mengakibatkan efek bola salju sehingga mempengaruhi kualitas produk dan biaya operasi pada plant. Untuk mengatasi hal tersebut diperlukan metode yang dapat melakukan pengendalian kompleks dalam menyelesaikan masalah tersebut. Metode yang digunakan pada penelitian ini yaitu metode Plantwide Control Skogestad. Dengan menggunakan metode PWC dapat dilihat hasil karakteristik pada pengendali dalam plant, didapatkan bahwa indeks performansi pada pengendalian XIC-101 dan XIC-100 dimana rata-rata saat gangguan naik 5% nilai settling time 1990 detik, overshoot 0.02657%, error steady state 0.0026015% dan IAE 636131,96 dan saat gangguan turun 5% settling time 8380,000 detik, overshoot 0,696%, error steady state 0,025 % dan IAE 158791,504. Perancangan PWC juga mampu menurunkan penggunaan energi pada plant ketika diberikan gangguan naik 5% sebesar 56.013,96 kJ/h dan saat gangguan turun 5% sebesar 46.096,44 kJ/h dan juga dapat menghemat kondisi ekonomi plant sebesar Rp. 652.219.242,6 ketika diberikan gangguan naik 5% dan Rp. 589.981.415,5 ketika diberikan gangguan turun sebesar 5%. ==================================================================================================== Indonesia is one of the natural gas producing countries, in producing natural gas a natural gas purification process is needed from the gaseous impurities. one of them is by optimizing the recycling process of Amine compounds at the Amine Regeneration plant, the Amine Regeneration Plant has a function to recycle Amine compounds, the function of Amine compounds is to bind dirty gases such as CO2 in natural gas. In recycling Amine compounds, a very stable process is needed so that the purity of the solution can be maintained, because in the plant there is heat integration, material recycling, and also a lot of chemical composition causing the process at the plant to become unstable, resulting in a snowball effect that affects product quality and operating costs at the plant. To overcome this, a method is needed that can carry out complex controls in solving these problems, the method used in this research is the Plantwide Control Skogstad method. By using the PWC method, it can be seen the results of the characteristics of the controller in the plant, it was found that the performance index on the XIC-101 and XIC-100 controls experienced an average increase in the change in settling time of 1980 seconds, overshoot of 0.02351, ESS of 0.003328%, and IAE of 0.029 %mole. PWC design also able to reduce energy use in the plant when the disturbance is given an increase of 5% by 56.013,96 kJ/h and when the disturbance decreases by 5% by 46.096,44 kJ/h and can also maximize the economic condition of the plant as much as Rp. 652,219,242,6 when given a rise disturbance by 5% and Rp. 589,981,415.5 when given decreased disturbance by 5%.

Item Type: Thesis (Undergraduate)
Uncontrolled Keywords: Amine Regeneration plant, Kolom Distilasi, PWC, Amine, Distillation Column
Subjects: T Technology > TJ Mechanical engineering and machinery > TJ217.6 Predictive Control
Divisions: Faculty of Industrial Technology and Systems Engineering (INDSYS) > Physics Engineering > 30201-(S1) Undergraduate Thesis
Depositing User: Rafqy Ferian Kalidva
Date Deposited: 22 Aug 2021 07:24
Last Modified: 22 Aug 2021 07:45
URI: https://repository.its.ac.id/id/eprint/88514

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