Analisis 4E (Exergy, Energy, Environment, Economic) Dari Produksi Green Ammonia Dengan Memanfaatkan Cold Energy LNG

Firmansyah, Vicky (2024) Analisis 4E (Exergy, Energy, Environment, Economic) Dari Produksi Green Ammonia Dengan Memanfaatkan Cold Energy LNG. Masters thesis, Institut Teknologi Sepuluh Nopember.

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Abstract

Kenaikan suhu global memicu peningkatan penggunaan energi terbarukan untuk mengurangi emisi karbon. Amonia, sebagai penyimpanan energi bersih yang menjanjikan, menghadapi tantangan biaya produksi yang tinggi. Studi ini bertujuan untuk menurunkan biaya produksi green ammonia melalui integrasi dengan terminal LNG untuk memanfaatkan energi dingin serta produksi blue ammonia dari batubara yang melimpah di Indonesia. Enam skema produksi diusulkan dan disimulasikan menggunakan software Aspen Plus untuk memperoleh neraca massa dan panas. Analisis 4E (eksergi, energi, ekonomi, dan lingkungan) dilakukan untuk setiap skema. Analisis eksergi menunjukkan bahwa destruksi eksergi terbesar terjadi di unit sintesis pada reaktor ammonia converter, dengan efisiensi eksergi berkisar antara 66,35% hingga 79,41%. Efisiensi energi berkisar antara 46,04% hingga 62,54%, dengan teknologi SOEC menunjukkan efisiensi lebih tinggi dibandingkan AWE. LCOA menurun signifikan sebesar 34-35,5% dengan integrasi LNG, dan hingga 55-57% dengan penjualan oksigen sebagai produk samping. Skenario green ammonia menunjukkan intensitas CO2 sebesar 0, sementara integrasi dengan LNG berpotensi menghasilkan 9,8 tCO2/hari. Blue ammonia dengan 90% penangkapan karbon menurunkan intensitas CO2 dari 4,8 menjadi 0,69 tCO2/hari.

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The increase in global temperatures has driven the adoption of renewable energy sources to reduce carbon emissions. Ammonia, a promising clean energy carrier, faces challenges due to high production costs. This study aims to reduce the cost of green ammonia production by integrating with LNG terminals to utilize cold energy and producing blue ammonia from the abundant coal resources in Indonesia. Six production schemes were proposed and simulated using Aspen Plus to obtain mass and energy balances. A 4E analysis (exergy, energy, economy, and environment) was conducted for each scheme. Exergy analysis revealed that the largest exergy destruction occurred in the ammonia synthesis unit at the ammonia converter reactor, with exergy efficiency ranging from 66.35% to 79.41%. Energy efficiency ranged from 46.04% to 62.54%, with SOEC technology demonstrating higher efficiency compared to AWE. The LCOA showed a significant reduction of 34-35.5% with LNG integration, and up to 55-57% with the sale of oxygen as a byproduct. The green ammonia scenario indicated a CO2 intensity of 0, while integration with LNG could potentially result in 9.8 tCO2/day. Blue ammonia, with 90% carbon capture, reduced CO2 intensity from 4.8 to 0.69 tCO2/day.

Item Type:	Thesis (Masters)
Uncontrolled Keywords:	Kata Kunci: Ammonia Hijau, Analisis 4E, Energi Bersih, Penyimpanan Energi ======================================================================================================================== Keywords: Green Ammonia, 4E Analysis, Clean Energy, Energy Storage
Subjects:	T Technology > T Technology (General) > T57.62 Simulation T Technology > T Technology (General) > T58.8 Productivity. Efficiency T Technology > TD Environmental technology. Sanitary engineering > TD194.6 Environmental impact analysis T Technology > TP Chemical technology > TP155.7 Chemical processes. T Technology > TP Chemical technology > TP761.L5 Liquefied natural gas
Divisions:	Faculty of Industrial Technology > Chemical Engineering > 24101-(S2) Master Thesis
Depositing User:	Vicky Firmansyah
Date Deposited:	07 Aug 2024 17:24
Last Modified:	07 Aug 2024 17:24
URI:	http://repository.its.ac.id/id/eprint/112028

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