Priantama, Dimas Bayu (2020) Strategi Plantwide Control Pada Proses Fraksinasi Liquefied Natural Gas (LNG). Other thesis, Institut Teknologi Sepuluh Nopember.
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Abstract
Penggunaan energi yang kian meningkat menyebabkan emisi karbon yang meningkat, hal ini mendorong untuk menemukan alternative energy. Gas alam adalah salah satu sumber energy dengan pembakaran yang rendah emisi karbon. Namun gas alam sebelum dikonsumsi harus dipisahkan terlebih dahulu. Pada proses Liquefied Natural Gas (LNG) unit fraksinasi adalah pemisahan bedasarkan fraksi. Kualitas LNG ditentukan dengan Pengendalian proses yang aman dan menguntungkan dari segi ekonomi. Plantwide control (PWC) adalah strategi kontrol peletakan sensor dan aktuator untuk menghindari efek snow ball. Metode kontrol yang dipilih pada tugas akhir ini menggunakan regulatory control (PID) serta decentralized supervisory control untuk supervisory control (MPC) dan untuk optimisasinya menggunakan real time optimizer. Penerapan PWC ketika kenaikan disturbance 5% biaya operasional ketika menggunakan 4 MPC dapat menghemat $ 653,701/jam dengan profit $ 123383,901/jam dan menggunakan 1 MPC dapat menghemat $631,84 per jam dengan total keuntungan $122587,04. Pada pengujian penurunan 5% non PWC (PID) menghasilkan laju produk dengan harga jual $10376/jam, sedangkan ketika memakai 4 MPC laju meningkat sebesar $ 112895/jam begitupun dengan memakai 1 MPC meningkat sebesar $10395/jam. Penerapan PWC Pada respon sistem yang stabil ketika diberi gangguan.serta menurunnya nilai IAE.
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Increased energy use causes carbon emissions to increase, this pushes to find alternative energy. Natural gas is a source of energy with low carbon emissions. However, natural gas before consumption must be completed first. In the process of Liquefied Natural Gas (LNG) the fractionation unit is an agreement based on the faction. LNG quality is determined by controlling a safe and profitable economic process. Plantwide control (PWC) is a control strategy for placing sensors and actuators to avoid the snowball effect. The control method chosen in this thesis uses regulatory controls (PID) as well as decentralized supervisory controls for supervisory control (MPC) and for optimization using real time optimizers. The adoption of PWC increases 5% increase in operating costs using 4 MPC to save $ 653,701 / hour with a profit of $ 123383,901 / hour and using 1 MPC can save $ 631.84 per hour with a total profit of $ 122587.04. A 5% non-PWC (PID) reduction resulted in a product price at a selling price of $ 10376 / hour, while compilation using 4 MPC a rate of increase of $ 112895 / hour as well as using 1 MPC increased by $ 10395 / hour. Application of PWC in a stable response system that is complicated by complications and decreasing IAE values.
| Item Type: | Thesis (Other) |
|---|---|
| Additional Information: | RSF 629.89 Pri s-1 • Priantama, Dimas Bayu |
| Uncontrolled Keywords: | kata kunci :Plantwide control, fraksinasi, optimisasi, LNG. keywords : Plantwide control, fractionation, optimization, LNG. |
| Subjects: | T Technology > T Technology (General) T Technology > T Technology (General) > T57.5 Data Processing T Technology > TP Chemical technology > TP156 Crystallization. Extraction (Chemistry). Fermentation. Distillation. Emulsions. T Technology > TP Chemical technology > TP350 Natural gas--Drying. |
| Divisions: | Faculty of Industrial Technology and Systems Engineering (INDSYS) > Physics Engineering > 30201-(S1) Undergraduate Thesis |
| Depositing User: | Dimas Bayu Priantama |
| Date Deposited: | 12 Aug 2020 08:04 |
| Last Modified: | 08 Jun 2023 13:30 |
| URI: | http://repository.its.ac.id/id/eprint/77767 |
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