Desain Plantwide Control pada Plant Fractionator Refinery Unit

Murdono, Dwi Satriyo (2020) Desain Plantwide Control pada Plant Fractionator Refinery Unit. Undergraduate thesis, Institut Teknologi Sepuluh Nopember.

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Abstract

Meningkatnya kebutuhan manusia akan energi yang sumber energi utamanya pada komoditas minyak bumi mendorong ditingkatkanya performansi dari sektor downstream atau unit pengolahan minyak bumi, untuk mendapatkan hasil yang optimal. Salah satu plant pada unit pengolahan adalah plant fractionator, untuk memisahkan fraksi nafta dengan fraksi LPG. Oleh karena plant fractionator merupakan plant dengan unit operasi yang saling berhubungan, adanya kolom distilasi, integrasi panas, variasi komponen kimia dan material daur ulang, untuk menjaga plant tetap optimal dan efisien diperlukan pemantauan dan pengendalian proses pada plant menggunakan metode plantwide control (PWC) Skogestad. pengendali PID, feedforward, dan MPC akan digunakan pada penelitian ini, dengan fungsi objektif dari plant adalah mendapatkan keuntungan yang optimal. Hasil penerapan PWC berhasil menghemat penggunaan energi plant sebesar 30.516,82 kJ/jam dari non-PWC saat naik 5%, dan 28.079,82 kJ/jam dari non PWC saat turun 5%. PWC juga meningkatkan profit dari plant sebesar 85,35 U$/jam non PWC saat naik 5% dan 110,36 U$/jam non PWC saat turun 5%. Serta mampu meningkatkan kestabilan plant dari karakteristik respon yang didapatkan.======================================================================================================= The increasing human need for energy, whose main energy source is in petroleum commodities, encourages improved performance from the downstream sector or petroleum processing units, to get optimal results. One of the plants in the processing unit is the fractionator plant, to separate the naphtha fraction from the lpg fraction. Because the plant fractionator is a plant with interconnected operating units, the presence of distillation columns, heat integration, variations of chemical components and recycled materials, to keep the plant optimal and efficient, it is necessary to monitor and control the process of the plant using the Schogestad plantwide control (PWC) method. . PID controller, feedforward, and MPC will be used in this study, with the objective function of the plant is to obtain optimal benefits. The results of the application of PWC succeeded in saving plant energy use by 30516,82 kJ/h from nonPWC when it rose 5%, and 28079,82 kJ/h from non PWC when it fell 5%. PWC also increased plant profit by 85,35 U$/h non PWC when it rose 5% and 110,36 U$/h non PWC when it dropped 5% . And able to increase plant stability from the response characteristics obtained.

Item Type: Thesis (Undergraduate)
Uncontrolled Keywords: Fractionator, Kolom Distilasi, Plantwide Control Fractionator, Distillation Column, Plantwide Control
Subjects: T Technology > TJ Mechanical engineering and machinery > TJ217.2 Robust control
T Technology > TJ Mechanical engineering and machinery > TJ217.6 Predictive Control
T Technology > TJ Mechanical engineering and machinery > TJ222 Supervisory control systems.
T Technology > TJ Mechanical engineering and machinery > TJ223 PID controllers
Divisions: Faculty of Industrial Technology > Physics Engineering > 30201-(S1) Undergraduate Thesis
Depositing User: Dwi Satriyo Murdono
Date Deposited: 13 Aug 2020 07:26
Last Modified: 17 Aug 2020 06:55
URI: http://repository.its.ac.id/id/eprint/77749

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