Desain Pabrik Hidrogen Hijau Dengan Elektrolisis Alkali Untuk Sel Bahan Bakar Kendaraan Listrik

Wiryamanu, Gede Aksha Diva and Halim, Davine Dorothy (2024) Desain Pabrik Hidrogen Hijau Dengan Elektrolisis Alkali Untuk Sel Bahan Bakar Kendaraan Listrik. Other thesis, Institut Teknologi Sepuluh Nopember.

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Abstract

Pengembangan Fuel Cell Electric Vehicle (FCEV) menggunakan hidrogen dari elektrolisis air diharapkan mengurangi polusi dan pemanasan global. Pasar hidrogen diprediksi terus meningkat, dan saat ini, hanya PT PLN yang memproduksi hidrogen hijau untuk FCEV, menunjukkan potensi pasar yang baik. Pabrik hidrogen hijau berkapasitas 50 ton H2 per tahun akan dibangun di kawasan industri SIER, Surabaya, dengan luas 1,23 hektar. Energi listrik untuk pabrik ini akan menggunakan energi surya dengan 604 photovoltaic cells, membutuhkan lahan 0,15 hektar. Produksi hidrogen hijau terdiri dari tiga tahap, antara lain pre-treatment air, generasi hidrogen, dan purifikasi hidrogen. Proses pre-treatment air dilakukan untuk memenuhi spesifikasi ASTM Tipe 2 melalui ion exchange, nanofiltrasi, dan reverse osmosis, menghasilkan air demineral. Air ini digunakan untuk membuat larutan 30% KOH sebagai elektrolit dalam alkaline water electrolyzer (AE). Hidrogen dihasilkan di katoda AE dan oksigen di anoda AE. H2 dipurifikasi di reaktor deoksigenasi dan kondensasi parsial, mencapai kemurnian 99,99%. Hidrogen akan dikompresi hingga 200 bar dan disimpan sebelum dikompresi kembali hingga 875 bar dan didinginkan hingga 10 oC sebelum disalurkan ke penyimpanan mobil 700 bar. Oksigen sebagai produk samping juga dipurifikasi melalui dehidrogenasi dan kondensasi parsial, mencapai kemurnian 99,99%. Oksigen dikompresi hingga 5 bar dan dikondensasikan pada suhu -164 oC menjadi oksigen cair berstandar medis. Dengan masa konstruksi 2 tahun dan umur pabrik 15 tahun, studi kelayakan menunjukkan CAPEX $511.949, OPEX $2.172.237, NPV $11.944.362, IRR 22,7%, BEP 32,7%, dan POT 4,1 tahun, menunjukkan pabrik layak untuk didirikan.
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The development of Fuel Cell Electric Vehicles (FCEVs) using hydrogen from water electrolysis is expected to reduce pollution and global warming. The hydrogen market is predicted to continue growing, and currently, only PT PLN produces green hydrogen for FCEVs, indicating good market potential. A green hydrogen plant with a capacity of 50 tons of H2 per year will be built in the SIER industrial area, Surabaya, covering 1.23 hectares. The electricity for this plant will be sourced from solar energy using 604 photovoltaic cells, requiring 0.15 hectares of land. Green hydrogen production consists of three stages, water pre-treatment, hydrogen generation, and hydrogen purification. The water pre-treatment process meets ASTM Type 2 specifications through ion exchange, nanofiltration, and reverse osmosis, producing demineralized water. This water is used to create a 30% KOH solution as the electrolyte in the alkaline water electrolyzer (AE). Hydrogen is produced at the AE cathode and oxygen at the AE anode. H2 is purified in a deoxygenation reactor and partial condensation, achieving 99.99% purity. Hydrogen will be compressed to 200 bar and stored before being further compressed to 875 bar and cooled to 10°C before being delivered to 700 bar car storage. Oxygen as a by-product is also purified through dehydrogenation and partial condensation, achieving 99.99% purity. Oxygen is compressed to 5 bar and condensed at - 164°C into medical-grade liquid oxygen. With a construction period of 2 years and a plant lifespan of 15 years, the feasibility study shows a CAPEX of $511,949, OPEX of $2,172,237, NPV of $11,944,362, IRR of 22.7%, BEP of 32.7%, and POT of 4.1 years, indicating the plant is feasible to establish.

Item Type:	Thesis (Other)
Uncontrolled Keywords:	Green hydrogen fuel, alkaline water electrolysis, FCEV, medical grade oxygen, medical grade oxygen
Subjects:	T Technology > TP Chemical technology > TP155.5 Chemical plants--Design and construction T Technology > TP Chemical technology > TP155.7 Chemical processes. T Technology > TP Chemical technology > TP255 Electrochemistry, Industrial.
Divisions:	Faculty of Industrial Technology and Systems Engineering (INDSYS) > Chemical Engineering > 24201-(S1) Undergraduate Thesis
Depositing User:	Davine Dorothy Halim
Date Deposited:	29 Jul 2024 03:11
Last Modified:	29 Jul 2024 03:11
URI:	http://repository.its.ac.id/id/eprint/109229

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