Mabruri, Mohammad Okky (2019) Desain Plantwide Control pada Supersonic Separation (3S) Plant. Other thesis, Institut Teknologi Sepuluh Nopember.
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Abstract
Produksi migas di Indonesia masih didominasi oleh produksi gas. Indonesia memiliki cadangan gas terbukti (proven gas reserves) terbesar ketiga belas di dunia dan terbesar kedua di Asia Pasifik, atau diperkirakan 1,4% dari cadangan dunia. Gas alam yang dihasilkan dari sumur tidak dapat digunakan secara langsung sebagai bahan bakar. Proses pemisahan adalah salah satu bagian penting dalam industri gas alam. supersonic separation merupakan teknologi pemisahan gas yang baru dengan menggabungkan teknologi JT-valve dan turbo expander. Plant yang digunakan pada tugas akhir ini yaitu supersonic separation plant dalam ekstraksi hidrokarbon berat dari metana atau liquefied petroleum gases (LPG) recovery. Adanya integrasi panas serta laju umpan gas alam yang tidak selalu stabil dan pertimbangan ekonomis untuk profit dari plant ini membutuhkan perancangan plantwide control. Perancangan desain plantwide control (PWC) pada supersonic separation ini berhasil menyelesaikan permasalahan tersebut, terbukti dengan adanya analisis dampak dari sisi energi, ekonomi dan dari kestabilan plant. Metode PWC yang digunakan menurunkan metode milik Luyben dan Skogestad. Hasil perancangan PWC pada kenaikan laju aliran massa umpan 5% mampu menurunkan penggunaan energi sebesar 698830 kJ per jam dan mampu meningkatkan profit sebesar 83 USD per jam sedangkan pada penurunan laju aliran massa umpan sebesar 5% mampu menurunkan penggunaan energi sebesar 438190 kJ per jam dan mampu meningkatkan profit sebesar 364 USD per jam. Penerapan PWC juga dapat menghasilkan respons sistem yang stabil saat dilakukan uji gangguan.
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Oil and gas production in Indonesia are still dominated by gas production. Indonesia has the thirteenth largest proven gas reserves in the world and is the second largest in the Asia Pacific or estimated at 1.4% of world reserves. Natural gas produced from wells cannot be used directly as fuel. The separation process is an important part of the natural gas industry. Supersonic separation is a new gas separation technology that combines JT-valve and turbo expander technology. The plant used in this final project is the supersonic separation plant in the methane or Liquefied Petroleum Gases (LPG) recovery). The integration of heat and the rate of feed of natural gas that is not always stable and economic considerations for profit from this plant require plantwide control design. Plantwide control (PWC) design on supersonic separation has successfully solved the problem, as evidenced by the impact of energy, economic and plant stability analysis. The PWC method used decreases the method of Luyben and Skogestad. The results of the PWC design at a 5% increase in feed mass flow can reduce energy use by 698830 kJ per hour and can increase profit by 83 USD per hour while decreasing the feed mass flow rate by 5% can reduce energy use by 438190 kJ per hour and is able increase profit by 364 USD per hour. The application of the PWC can also produce a stable system response when the interference test is performed.
| Item Type: | Thesis (Other) |
|---|---|
| Uncontrolled Keywords: | plantwide control, supersonic separation, liquefied petroleum gases (LPG) recovery |
| Subjects: | T Technology > TJ Mechanical engineering and machinery > TJ222 Supervisory control systems. T Technology > TJ Mechanical engineering and machinery > TJ223 PID controllers T Technology > TP Chemical technology |
| Divisions: | Faculty of Industrial Technology > Physics Engineering > 30201-(S1) Undergraduate Thesis |
| Depositing User: | Mabruri Mohammad Okky |
| Date Deposited: | 13 Nov 2024 05:29 |
| Last Modified: | 13 Nov 2024 05:29 |
| URI: | http://repository.its.ac.id/id/eprint/69840 |
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