Optimasi Ekonomi Dan Komposisi Produk Pada Debutanizer Menggunakan Economic Model Predictive Control (EMPC)

Ramadhani, Zakia Puspa (2016) Optimasi Ekonomi Dan Komposisi Produk Pada Debutanizer Menggunakan Economic Model Predictive Control (EMPC). Undergraduate thesis, Institut Teknologi Sepuluh Nopember.

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Abstract

Debutanizer merupakan kolom distilasi yang digunakan pada unit fraksinasi LPG untuk mendapatkan butane dan senyawa naptha. Kolom distilasi mengkonsumsi sejumlah energi yang besar yang digunakan sebagai pendinginan dan pemanasan pada kolom distilasi. Kebutuhan energi sebesar itu menyebabkan biaya produksi yang digunakan pada kolom distilasibesar.Economic Model Predictive Control (EMPC) diperlukan untuk mengintegrasikan pengendalian proses dan optimasi biaya pada proses atau ekonomi. EMPC adalah penggabungan fungsi objektif MPC secara umum yaitu meminimimalkan error komposisi dan energi dengan mempertimbangkan harga material yang digunakan pada kolom distilasi. Harga material yang digunakan meliputi harga umpan, harga energi, dan harga produk. EMPC berhasil mengoptimasi komposisi sesuai dengan nilai yang ditentukan yaitu 0,4639 untuk komposisi XD dan 0,001 untuk komposisi XB. Saat laju aliran umpan naik, energi yang digunakan sebesar 3.506.729,12 kj/h dan mampu menghemat biaya operasional sebesar 0,37 USD/h sedangkan saat laju aliran umpan turun energi yang digunakan sebesar 2.904.299,34 kj/h dan mampu menghemat biaya operasional sebesar 0,78 USD/h. ================================================================================================================== Debutanizer is a distillation column used on LPG fractionation unit to get butane and naphtha compound. Butane will be sold as LPG, while naphtha is used to add the octane rating in gasoline. The distillation column consumes large amounts of energy. 50% of the energy needs of the industry is used for cooling and heating in the distillation column. Amounts of energy needs that much causes the production costs used on a distillation column become high.Economic Model Predictive Control (EMPC) needs to integrate the control of process and optimization the costs of process or economic. EMPC is merging MPC objective function in general that minimize composition and energy error with consideration of the price of the material used in the distillation column. Prices of materials used include the price of feed, energy prices, and prices of products. EMPC managed to optimize the composition according to the specified values that are 0,4639 for the XD composition and 0,001 for the XB composition. When the flow rate is feed up, the energy used is 3,506,729.12 kj / h and able to save on operating costs of 0,37 USD/h whereas when the flow rate is feed down, the energy used is 2,904,299.34 kj / h and able to save on operating costs of 0,78 USD/h.

Item Type: Thesis (Undergraduate)
Additional Information: RSF 629.83 Ram o
Uncontrolled Keywords: Debutamizer; kolom distilasi; EMPC; optimasi komposisi; ekonomi
Subjects: T Technology > TJ Mechanical engineering and machinery > TJ217.6 Predictive Control
Divisions: Faculty of Industrial Technology > Physics Engineering > 30201-(S1) Undergraduate Thesis
Depositing User: ansi aflacha
Date Deposited: 24 Jun 2020 03:35
Last Modified: 24 Jun 2020 03:35
URI: https://repository.its.ac.id/id/eprint/76222

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