Pra Desain Pabrik Kimia Metanol dari Gas Alam

Hakim, Muhammad Nurul and Safitri, Baiq Firyal Salsabila Safitri (2019) Pra Desain Pabrik Kimia Metanol dari Gas Alam. Other thesis, Institut Teknologi Sepuluh Nopember.

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Abstract

Di Indonesia, cadangan gas alam dalam 10 tahun terakhir menunjukkan kecenderungan meningkat. Berdasarkan data Departemen ESDM pada tahun 2015, cadangan gas alam Indonesia sebesar 170 TSCF dan tingkat produksi per tahun mencapai 2,87 TSCF. Dengan komposisi tersebut Indonesia memiliki reserve to product (R/P) mencapai 59 tahun. Secara garis besar pemanfaatan gas alam dapat dijadikan sebagai bahan bakar (PLTU, industri, kendaraan bermotor, dll), bahan baku (pembuatan pupuk, metanol, plastik, dll), komoditas energi untuk ekspor, yakni Liquefied Natural Gas (LNG). Di Indonesia sendiri pemanfaatan gas alam untuk dijadikan metanol cukup rendah, terdapat 2 perusahaan yang memproduksi metanol namun belum dapat memenuhi kebutuhan metanol di Indonesia sehingga masih mengimpor.
Metanol dapat diproduksi menggunakan proses sintesa metanol dengan menggunakan teknologi Lurgi. Garis besar proses sintesa metanol yaitu proses pre-treatment gas alam, preparasi syn gas, sintesa metanol dan purifikasi metanol. Pabrik metanol direncanakan akan mulai beroperasi pada tahun 2022, dengan mengacu pada pemenuhan kebutuhan dalam negeri. Dengan analogi untuk memenuhi 60% kebutuhan metanol nasional (dalam ton) pada tahun 2021, sehingga kapasitas produksinya menjadi 1.200.000 ton/ tahun. Pabrik metanol beroperasi secara selama 24 jam, 330 hari/ tahun. Dengan kapasitas produksi 1.200.000 ton/tahun dibutuhkan gas alam sebagai bahan baku sebesar 1.142.802,761 ton/tahun. Total modal investasi sebesar Rp. 4.660.828.812.425,00. Biaya produksi per tahun sebesar Rp. 6.182.778.313.264,00. Hasil penjualan per tahun Rp. 8.360.772.000.000,00. Sehingga diperoleh Internal Rate of Return 26%, Payout time selama 4,85 tahun dan Break Event Point 35%.
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In Indonesia, natural gas reserves in the last 10 years have shown an increasing trend. Based on data from the Ministry of Energy and Mineral Resources in 2015, Indonesia's natural gas reserves amounted to 170 TSCF and the annual production rate reached 2.87 TSCF. With this composition, Indonesia has a reserve to product (R / P) of 59 years. Broadly speaking, the use of natural gas can be used as fuel (PLTU, industry, motorized vehicles, etc.), raw materials (manufacturing fertilizers, methanol, plastics, etc.), energy commodities for export, namely Liquefied Natural Gas (LNG). In Indonesia alone, the use of natural gas to be used as methanol is quite low, there are 2 companies that produce methanol but have not been able to meet methanol requirements in Indonesia so they still import.
Methanol can be produced using the methanol synthesis process using Lurgi technology. An outline of the process of methanol synthesis is the process of pre-treatment of natural gas, preparation of syn gas, synthesis of methanol and purification of methanol. The methanol plant is planned to start operating in 2022, with reference to meeting domestic needs. By analogy to meet 60% of the national methanol requirement (in tons) in 2021, so that its production capacity becomes 1,200,000 tons / year. The methanol plant operates 24 hours, 330 days / year. With a production capacity of 1,200,000 tons / year natural gas is needed as raw material for 1,142,802,761 tons / year. Total investment capital of Rp. 4,660,828,812,425.00. Annual production costs of Rp. 6,182,778,313,264.00. Annual sales of Rp. 8,360,772,000,000.00. So that the Internal Rate of Return is 26%, Payout time is 4.85 years and Break Event Point is 35%.

Item Type:	Thesis (Other)
Uncontrolled Keywords:	Methanol, Natural Gas, Synthesis
Subjects:	T Technology > TP Chemical technology > TP339 Ethanol as fuel. Biomass energy. T Technology > TP Chemical technology > TP350 Natural gas--Drying.
Divisions:	Faculty of Industrial Technology > Chemical Engineering > 24201-(S1) Undergraduate Thesis
Depositing User:	Baiq Firyal Salsabila Safitri
Date Deposited:	22 Jul 2026 02:30
Last Modified:	22 Jul 2026 02:30
URI:	http://repository.its.ac.id/id/eprint/66064

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