Desain Pabrik Green Ammonia Dari Elektrolisis Air Dan Udara Untuk Co-Firing Ammonia Pembangkit Listrik

Roziqin, F. Fathul and Hilmy, Muhammad Fauzan (2026) Desain Pabrik Green Ammonia Dari Elektrolisis Air Dan Udara Untuk Co-Firing Ammonia Pembangkit Listrik. Other thesis, Institut Teknologi Sepuluh Nopember.

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Abstract

Pabrik green ammonia yang dirancang pada tugas akhir ini memanfaatkan hidrogen hijau yang diproduksi melalui proses elektrolisis air tawar menggunakan teknologi alkaline water electrolysis, serta nitrogen yang diperoleh dari udara melalui proses pressure swing adsorption (PSA). Air umpan elektroliser dimurnikan menggunakan unit reverse osmosis untuk memenuhi spesifikasi kualitas air demineralisasi. Hidrogen dan nitrogen kemudian direaksikan dalam unit sintesis amonia menggunakan proses Haber-Bosch pada kondisi suhu dan tekanan tinggi, dilengkapi dengan sistem resirkulasi gas untuk meningkatkan konversi reaksi. Produk amonia cair selanjutnya digunakan sebagai bahan bakar co-firing pada pembangkit listrik. Pabrik dirancang dengan kapasitas produksi sebesar 2000 ton amonia per tahun dan waktu operasi 330 hari per tahun. Kebutuhan investasi meliputi modal tetap sebesar Rp584.793.206.828,76 modal kerja sebesar Rp103.198.801.205,08, sehingga diperoleh total modal investasi sebesar Rp687.992.008.033,84. Biaya produksi tahunan diperkirakan sebesar Rp1.575.662.067.005,02, dengan potensi pendapatan sebesar Rp393.555.293.548 per tahun. Hasil analisa ekonomi menunjukkan nilai Internal Rate of Return (IRR) sebesar 13,56%, Net Present Value (NPV) positif sebesar Rp5.367.983.127.716,32, serta Pay Out Time (POT) selama 7 tahun, sehingga proyek ini dinilai layak untuk direalisasikan secara ekonomi. Berdasarkan kajian teknis, ekonomi, dan lingkungan, pabrik green ammonia yang dirancang memiliki potensi besar untuk mendukung pemanfaatan energi bersih serta mempercepat transisi energi nasional melalui penerapan co-firing amonia pada pembangkit listrik.
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The green ammonia plant designed in this final project utilizes green hydrogen produced through fresh water electrolysis using alkaline water electrolysis technology, as well as nitrogen obtained from air via a pressure swing adsorption (PSA) process. The electrolyzer feed water is purified using a reverse osmosis unit to meet demineralized water quality specifications. Hydrogen and nitrogen are subsequently reacted in the ammonia synthesis unit using the Haber–Bosch process under high-temperature and high-pressure conditions, equipped with a gas recirculation system to enhance reaction conversion. The resulting liquid ammonia product is then utilized as a fuel for ammonia co-firing in power plants. The plant is designed with a production capacity of 2,000 tons of ammonia per year and an operating time of 330 days per year. The required investment includes a fixed capital investment of IDR 584.793.206.828,76 and working capital of IDR 103.198.801.205,08, resulting in a total capital investment of IDR 687.992.008.033,84. The annual production cost is estimated at IDR 1,844,184,360,382.50, with a potential annual revenue of IDR 393.555.293.548. The economic analysis indicates an Internal Rate of Return (IRR) of 13,56%, a positive Net Present Value (NPV) of IDR 5.367.983.127.716,32, and a Pay Out Time (POT) of 7 years, indicating that the project is economically feasible. Based on technical, economic, and environmental evaluations, the designed green ammonia plant shows significant potential to support clean energy utilization and accelerate the national energy transition through the implementation of ammonia co-firing in power plants.

Item Type:	Thesis (Other)
Uncontrolled Keywords:	Green Ammonia, Elektrolisis Air, Haber–Bosch, Co-Firing, Transisi Energi
Subjects:	Q Science > QD Chemistry > QD117 Absorption Q Science > QD Chemistry > QD63.S4 Separation (Technology)
Divisions:	Faculty of Industrial Technology and Systems Engineering (INDSYS) > Chemical Engineering > 24201-(S1) Undergraduate Thesis
Depositing User:	F. Fathul Roziqin
Date Deposited:	20 Jul 2026 03:26
Last Modified:	20 Jul 2026 03:26
URI:	http://repository.its.ac.id/id/eprint/135523

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