Plant Design of Bioethanol from Sugarcane Dregs (Bagasse) to Promote Green Economy

Bhaskara, Samuel Indra and Fadlilah, IGD Gada Satwika (2026) Plant Design of Bioethanol from Sugarcane Dregs (Bagasse) to Promote Green Economy. Other thesis, Institut Teknologi Sepuluh Nopember.

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Abstract

Penelitian ini menyajikan perancangan pabrik bioetanol berbahan baku utama ampas tebu (bagasse) dengan kapasitas produksi sebesar 30.000 kL per tahun. Ampas tebu dipilih karena memiliki kandungan lignoselulosa yang tinggi serta ketersediaannya yang melimpah di Indonesia, yang diproyeksikan mencapai sekitar 45,6 juta ton pada tahun 2030. Proses produksi terdiri atas tiga tahapan utama, yaitu praperlakuan asam menggunakan H₂SO₄ untuk menghilangkan lignin, proses Simultaneous Saccharification and Co-Fermentation (SSCF) untuk menghidrolisis selulosa menjadi glukosa sekaligus memfermentasi glukosa dan xilosa menjadi etanol, serta pemurnian melalui distilasi yang dikombinasikan dengan adsorpsi molecular sieve untuk menghasilkan Fuel Grade Ethanol (FGE) dengan kemurnian 99,5%. Proses fermentasi dilakukan menggunakan Saccharomyces cerevisiae untuk meningkatkan stabilitas proses. Ruang lingkup perancangan meliputi pemilihan dan deskripsi proses, penyusunan Process Flow Diagram (PFD), perhitungan neraca massa dan energi, analisis Hazard and Operability (HAZOP), perancangan Piping and Instrumentation Diagram (P&ID), estimasi biaya peralatan, evaluasi kelayakan ekonomi, serta analisis dampak lingkungan. Hasil penelitian ini diharapkan dapat menjadi landasan yang komprehensif bagi pengembangan produksi bioetanol berkelanjutan berbahan baku ampas tebu di Indonesia.
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This study presents the design of a bioethanol production plant utilizing sugarcane bagasse as the primary raw material with a planned capacity of 30,000 kL per year. Sugarcane bagasse was selected due to its high lignocellulosic composition and abundant availability in Indonesia, which is projected to reach approximately 45.6 million tons by 2030. The production process consists of three main stages: acid pretreatment with H₂SO₄ for lignin removal, Simultaneous Saccharification and Co-Fermentation (SSCF) to hydrolyze cellulose into glucose and ferment glucose and xylose into ethanol, and purification by distillation combined with molecular sieve adsorption to achieve fuel-grade ethanol (FGE) with a purity of 99.5%. Fermentation is carried out using Saccharomyces cerevisiae to enhance process stability. The scope of this project includes process selection and description, development of a Process Flow Diagram (PFD), mass and energy balance calculations, Hazard and Operability (HAZOP) analysis, Piping and Instrumentation Diagram (P&ID) design, equipment cost estimation, economic feasibility evaluation, and environmental impact assessment. The results are expected to provide a comprehensive basis for the development of sustainable bioethanol production from sugarcane bagasse in Indonesia.

Item Type:	Thesis (Other)
Uncontrolled Keywords:	Simultaneous Saccharification and Co-Fermentation, hydrolysis, Saccharomyces cerevisiae, bagasse
Subjects:	T Technology > TP Chemical technology > TP155.5 Chemical plants--Design and construction
Divisions:	Faculty of Industrial Technology and Systems Engineering (INDSYS) > Chemical Engineering > 24201-(S1) Undergraduate Thesis
Depositing User:	Samuel Indra Bhaskara
Date Deposited:	20 Jul 2026 06:23
Last Modified:	20 Jul 2026 06:23
URI:	http://repository.its.ac.id/id/eprint/135742

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