Pengaruh Parameter Proses Dan Analisis Tekno-Ekonomi Produksi Hydrochar Dari Limbah Perkotaan Dengan Metode Co-Hydrothermal Carbonization

Rafidianto, Satria Rafif (2025) Pengaruh Parameter Proses Dan Analisis Tekno-Ekonomi Produksi Hydrochar Dari Limbah Perkotaan Dengan Metode Co-Hydrothermal Carbonization. Other thesis, Institut Teknologi Sepuluh Nopember.

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Abstract

Produksi bahan bakar padat ramah lingkungan dari limbah perkotaan semakin relevan di tengah meningkatnya volume sampah organik dan kebutuhan energi berkelanjutan. Co-hydrothermal carbonization (Co-HTC) merupakan metode konversi termokimia efisien untuk mengolah limbah pangan (FW) dan limbah pekarangan (YW) menjadi hydrochar. Berdasarkan simulasi proses yang dilakukan dengan software Aspen Plus, katalis Graphene oxide (GO) pada kadar air 50%, suhu 200 °C, dan tekanan 55 bar menghasilkan kandungan karbon hingga 47% dan HHV mencapai 34,17 MJ/kg. GO terbukti lebih unggul dibanding katalis HCl dan tanpa katalis (DI), meningkatkan yield hingga 96,9% dan kualitas energi produk. Analisis tekno-ekonomi menunjukkan bahwa produksi hydrochar layak secara finansial: skenario terbaik menghasilkan NPV positif, IRR di atas 10%, dan payback period 10 tahun. Hasil ini menegaskan bahwa Co-HTC dengan katalis GO bukan hanya meningkatkan kualitas bahan bakar padat, tetapi juga memberikan keuntungan ekonomi dan mendukung transisi menuju ekonomi sirkular berbasis biomassa limbah kota.
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The production of environmentally friendly solid fuels from urban waste is becoming increasingly relevant amid the rising volume of organic waste and the growing demand for sustainable energy. Co-hydrothermal carbonization (Co-HTC) is an efficient thermochemical conversion method for processing food waste (FW) and yard waste (YW) into hydrochar. Based on process simulations conducted using Aspen Plus software, the use of graphene oxide (GO) catalyst at 50% moisture content, 200 °C, and 55 bar pressure resulted in a carbon content of up to 47% and a higher heating value (HHV) of 34.17 MJ/kg. GO proved superior to HCl and non-catalyzed (DI) scenarios, increasing yield to 96% and enhancing the energy quality of the product. Techno-economic analysis indicates that hydrochar production is financially viable: the best-case scenario yields a positive net present value (NPV), an internal rate of return (IRR) above 10%, and a payback period of 10 years. These findings highlight that Co-HTC with GO catalyst not only improves the quality of solid fuel but also offers economic benefits and supports the transition toward a circular economy based on urban biomass waste.

Item Type:	Thesis (Other)
Uncontrolled Keywords:	Hydrochar, Co-HTC, Limbah perkotaan, Aspen Plus, Tekno-ekonomi, Hydrochar, Co-HTC, Municipal Solid Waste, Aspen Plus, Techno-economy
Subjects:	T Technology > TP Chemical technology > TP155.5 Chemical plants--Design and construction T Technology > TP Chemical technology > TP155.7 Chemical processes.
Divisions:	Faculty of Industrial Technology and Systems Engineering (INDSYS) > Physics Engineering > 30201-(S1) Undergraduate Thesis
Depositing User:	Satria Rafif Rafidianto
Date Deposited:	30 Jul 2025 09:03
Last Modified:	30 Jul 2025 09:03
URI:	http://repository.its.ac.id/id/eprint/124492

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