Putra, Sean Mahardika (2025) Pembuatan Bahan Bakar Fraksi Setara Kerosin Berbahan Dasar Limbah Polistirena (PS) Melalui Metode Pirolisis Menggunakan Katalis Zeolit HZSM-5/CTF-04. Other thesis, Institut Teknologi Sepuluh Nopember.
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Abstract
Limbah polistirena (PS) merupakan limbah plastik yang sulit terurai, namun penggunaan material pembungkus makanan ataupun elektronik dari polistirena mengalami peningkatan setiap tahunnya. meningkatnya limbah polistirena menyebabkan permasalahan lingkungan. Polistirena merupakan jenis limbah polimer yang kaya akan kandungan senyawa karbon dan hidrogen, sehingga berpotensi dikonversi menjadi bahan bakar cair. Penelitian ini bertujuan untuk mengoversi limbah polistirena (PS) menjadi fraksi bahan bakar kerosin melalui metode pirolisis dengan katalis zeolit HZSM-5/CTF-04. Proses pirolisis dilakukan dalam kondisi inert dengan variasi w/t% katalis zeolite HZSM-5/CTF-04. Karakterisasi katalis meliputi analisis struktur kristal (XRD), morfologi dan komposisi unsur (FESEM-EDX), gugus fungsi (FTIR), serta tingkat keasaman permukaan menggunakan NH₃-TPD. Minyak hasil pirolisis selanjutnya dikarakterisasi berdasarkan sifat fisikokimia, meliputi densitas, viskositas, serta komposisi hidrokarbon menggunakan GC-MS, dan evaluasi bilangan cetane serta oktan. Proses pirolisis dilakukan menggunakan reaktor dengan suhu operasional 350°C selama 40 menit. Variasi rasio berat katalis yang digunakan adalah 0,5; 0,75; dan 1% w/t% terhadap massa limbah polistirena. Hasil penelitian menunjukan zeolit HZSM-5/CTF-04 memiliki struktur kristal yang stabil serta permukaan yang berpori, dan memiliki keasamaan yang baik guna mengarahkan produk pirolisis menuju fraksi hidrokarbon rantai menengah C10-C16 yang sesuai dengan bahan bakar kerosin. Analisa GC-MS mengonfirmasi munculnya senyawa hidrokarbon fraksi kerosin ringan seperti dekana (C10), undekana (C11), tetradekana (C14) , dan heksadekana (C16). Hasil analisa uji oktan menunjukan tingginya senyawa aromatik dalam minyak hasil pirolisis dengan nilai mencapai 115, namun analisa uji angka setana menunjukan nilai 0. Penelitian membuktikan bahwa melalui proses pirolisis katalitik dengan katalis HZSM-5/CTF-04 limbah polistirena dapat diubah secara efektif menjadi bahan bakar kerosin, namun produk hasil pirolisis membutuhkan tahapan lanjutan guna memenuhi spesifikasi bahan bakar kerosin komersial.
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Polystyrene (PS) waste is a type of plastic waste that non-biodegradable, and its accumulation contributes to environmental problems. Polystyrene is a polymer waste rich in carbon and hydrogen compounds, making it potentially convertible into liquid fuel. This study aims to convert polystyrene (PS) waste into a kerosene fuel fraction via pyrolysis using an HZSM-5/CTF-04 zeolite catalyst. The pyrolysis process was conducted under inert conditions with varying weight percentages (w/t%) of the HZSM-5/CTF-04 catalyst. Catalyst characterization included crystal structure analysis (XRD), morphology and elemental composition (FESEM-EDX), functional groups (FTIR), and surface acidity using NH₃-TPD. The resulting pyrolysis oil was subsequently characterized based on physicochemical properties, including density, viscosity, hydrocarbon composition using GC-MS, and an evaluation of cetane and octane numbers. The pyrolysis process was performed in a reactor with an operating temperature of 350°C for 40 minutes. The catalyst weight ratios used were 0.5; 0.75; and 1% (w/t%) relative to the mass of the polystyrene waste. The results showed that the HZSM-5/CTF-04 zeolite possesses a stable crystal structure, a porous surface, and optimal acidity to direct pyrolysis products toward the medium-chain hydrocarbon fraction (C10 - C16) corresponding to kerosene fuel. GC-MS analysis confirmed the presence of light kerosene fraction hydrocarbon compounds such as decane (C10), undecane (C11), tetradecane (C14), and hexadecane (C16). Octane test analysis indicated a high content of aromatic compounds in the pyrolysis oil with a value reaching 115, however, the cetane number analysis yielded a value of 0. This study demonstrates that through catalytic pyrolysis with the HZSM-5/CTF-04 catalyst, polystyrene waste can be effectively converted into kerosene fuel, although the pyrolysis product requires further processing to meet commercial kerosene fuel specifications
| Item Type: | Thesis (Other) |
|---|---|
| Uncontrolled Keywords: | Limbah Polistirena (PS), Katalitik Pirolisis, HZSM-5,CTF-04, Kerosin,Fraksi Hidrokarbon Polystyrene Waste, HZSM-5, CTF-04, Catalytic Pyrolysis, Kerosene, Hydrocarbon Fraction |
| Subjects: | Q Science > QD Chemistry > QD281 Pyrolysis |
| Divisions: | Faculty of Science and Data Analytics (SCIENTICS) > Chemistry > 47201-(S1) Undergraduate Thesis |
| Depositing User: | Sean Mahardika Putra |
| Date Deposited: | 04 Feb 2026 02:21 |
| Last Modified: | 04 Feb 2026 02:21 |
| URI: | http://repository.its.ac.id/id/eprint/131838 |
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