Peningkatan Heat Recovery Pada Jaringan Heat Exchanger Di Pabrik Asam Sulfat Dengan Teknologi Proses Double Contact Double Absorber

Putri, Risa Ananda and Nabhan, Muhammad Farhan (2022) Peningkatan Heat Recovery Pada Jaringan Heat Exchanger Di Pabrik Asam Sulfat Dengan Teknologi Proses Double Contact Double Absorber. Diploma thesis, Institut Teknologi Sepuluh Nopember.

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Abstract

Kebutuhan asam sulfat di Indonesia bergantung pada produk impor dari luar negri yang digunakan sebagai bahan baku, bahan penolong dalam proses industri kimia. Pabrik asam sulfat rencanan di sedayulawas, kecamatan brondong, kabupaten lamongan, Jawa Timur pada tahun 2025 dengan bahan baku sulfur padat didatangkan dari aceh dan timur tengah. Pabrik asam sulfat memiliki kapasitas produksi 600.000 ton/tahun dengan lama operasi 330 hari bahan baku sulfur yang dibutuhkan 24.316,76 kg/jam dengan basis waktu 1 jam. Proses produksi pembuatan asam sulfat yitu sulfur di cairkan di unit sulfur handling, lalu direaksikan dengan oksigen diunit SO2 Generation lalu dikonversi di unit SO2 Convertion lalu dilakukan absorbsi SO3 dengan asam sulfat 98,5%, produk keluaran abosorber yaitu asam pilusulfat dan produk ini akan di encerkan menggunakan deminwater hingga konsentrasi asam sulfat 98,5%. Optimasi yang dilakukan adalah melakukan matching jaringan heat exchanger dengan metode pinch technology pada aspen energy analyzer untuk memanfaatkan energi yang terbuang pada alat penukar panas sehingga memaksimalkan penggunaan energi didalam proses dan meminimalisir penggunaan energi pada unit utilitas. Hasil yang optimal yaitu pada retrofit design pada variasi jumlah heat exchanger sebanyak 5 dengan luasan area 6028 m2 , cooling value 4,574x108 dan capital cost 1,461x106 sehingga pengeluaran tersebut lebih kecil dari kondisi existing yang memiliki jumlah heat exchanger sebanyak 6 dengan luasan area 6383 m2 , cooling value 4,574x108 dan capital cost 1,618x106 pengeluaran tersebut lebih kecil daripada kondisi existing dengan penghematan sebesar 52.052,97 kg/jam.
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The need for sulfuric acid in Indonesia depends on imported products from abroad which are used as raw materials, auxiliary materials in the chemical industry process. The sulfuric acid plant is planned in Sedayulawas, Brondong sub-district, Lamongan district, East Java in 2025 with solid sulfur raw materials imported from Aceh and the Middle East. The sulfuric acid plant has a production capacity of 600,000 tons/year with an operating time of 330 days. The raw materials for sulfur are 24,316.76 kg/hour with a time base of 1 hour. The production process for making sulfuric acid, namely sulfur, is liquefied in the sulfur handling unit, then reacted with oxygen in the SO2 Generation unit and then converted in the SO2 Conversion unit and then absorbed by SO3 with 98.5% sulfuric acid. dilute using deminwater to a concentration of 98.5% sulfuric acid. The optimization is carried out by matching the heat exchanger network with the pinch technology method on the aspen energy analyzer to utilize the energy wasted in the heat exchanger so as to maximize energy use in the process and minimize energy use in the utility unit. The optimal result is the retrofit design on the variation of the number of heat exchangers as many as 5 with an area of 6028 m2, cooling value 4,574x108 and capital cost 1,461x106 so that the expenditure is smaller than the existing condition which has 6 heat exchangers with an area of 6383 m2, cooling value 4,574x108 and capital cost 1,618x106 the expenditure is smaller than the existing condition with savings of 52,052.97 kg/hour.

Item Type: Thesis (Diploma)
Additional Information: RSKI 661.22 Put p-1 2022
Uncontrolled Keywords: Asam sulfat, sulfur, jaringan heat exchanger, energi. Sulfuric acid, sulfur, heat exchanger network, energy.
Subjects: T Technology > TP Chemical technology
Divisions: Faculty of Vocational > 24305-Industrial Chemical Engineering Technology
Depositing User: Mr. Marsudiyana -
Date Deposited: 17 Jul 2026 05:32
Last Modified: 17 Jul 2026 05:32
URI: http://repository.its.ac.id/id/eprint/135425

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