Optimasi Proses Penyerapan SO3 pada Kinerja Kolom Absorber Menggunakan Proses Double Contact Double Absorption (DCDA)

Ardiansyah, Erlangga and Taji, Lulu Sekar (2023) Optimasi Proses Penyerapan SO3 pada Kinerja Kolom Absorber Menggunakan Proses Double Contact Double Absorption (DCDA). Other thesis, Institut Teknologi Sepuluh Nopember.

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Abstract

Asam sulfat merupakan senyawa kimia yang keberadaannya banyak dipakai dan dibutuhkan serta perannya penting dalam proses produksi pada bidang industri. Asam sulfat digunakan sebagai agen dehidrasi, katalis, reaktan aktif dalam proses kimia, pelarut, dan penyerap. Dalam industri, asam sulfat diproduksi dan dipasok dalam tingkat kemurnian yang tepat untuk baterai penyimpanan, rayon, tawas, pewarna, dan industri farmasi. Proses SO3 absorption merupakan salah satu tahap untuk memproduksi asam sulfat dan merupakan tahap paling krusial dalam pembuatan asam sulfat. Karena dalam prosesnya timggi-rendahnya konsentrasi asam sulfat yang dihasilkan dipengaruhi oleh kondisi operasi dalam absorption tower. Namun umumnya absorption tower dalam proses SO3 absorption tidak menyerap SO3 yang masuk secara efisien, sehingga masih ada rasio SO3 yang tidak terserap dan dikeluarkan ke sistem. Untuk menginvestigasi masalah diatas, optimasi yang ditentukan adalah dengan cara mengetahui pengaruh suhu dan tekanan terhadap proses SO3 absorption di dalam absorption tower dan merancang kolom absorber dengan menggunakan 2 kolom absorber bertipe Double Contact Double Absorption (DCDA). Simulasi dilakukan dengan menggunakan Aspen HYSYS berdasarkan data desain dari kondisi eksisting dan optimasi didasarkan pada retrofit kolom absorber ke-II pada pabrik asam sulfat yang telah dirancang. Berdasarkan hasil kalkulasi perancangan kolom absorber, digunakan tipe absorber sieve tray tipe cross flow karena tipe tersebut memenuhi syarat sebagai kolom absorber dan kolom stripper karena berada di daerah operasi stabil. Hasil optimasi yang diperoleh yakni retrofit pabrik asam sulfat menggunakan DCDA menaikkan nilai efisiensi produksi dari 94,98% menjadi 99,82%.
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Sulfuric acid is a chemical compound whose existence is widely used and needed and its important role in the production process in the industrial field. Sulfuric acid is used as a dehydrating agent, catalyst, active reactant in chemical processes, solvent, and absorbent. In industry, sulfuric acid is produced and supplied at the right purity levels for storage batteries, insecticides, alum, dyes, and the pharmaceutical industry. The SO3 absorption process is one of the stages to produce sulfuric acid and is the most crucial stage in the manufacture of sulfuric acid. Because in the process the low concentration of sulfuric acid produced is influenced by the operating conditions in the absorption tower. However, generally, the absorption tower in the SO3 absorption process does not absorb incoming SO3 efficiently, so there is still a ratio of SO3 that is not absorbed and issued to the system. To investigate the above problem, the optimization determined is to determine the effect of temperature and pressure on the SO3 absorption process in the absorption tower and design an absorber column using two absorber columns of Double Contact Double Absorption (DCDA) type. The simulation was carried out using Aspen HYSYS based on design data from existing conditions and optimization was based on retrofitting the second absorber column at the designed sulfuric acid plant. Based on the calculation results of the absorber column design, the crossflow type sieve tray absorber type is used because this type qualifies as an absorber column and a stripper column. After all, it is in a stable operating area. The optimization results obtained were that the retrofit of the sulfuric acid plant using DCDA increased the production efficiency value from 94.98% to 99.82%.

Item Type:	Thesis (Other)
Uncontrolled Keywords:	Absorption Tower, Optimization, Retrofit, Simulation, Sulfuric Acid, Absorption Tower, Asam Sulfat, Optimasi, Retrofit, Simulasi
Subjects:	Q Science > QD Chemistry > QD117 Absorption T Technology > TP Chemical technology > TP155.5 Chemical plants--Design and construction
Divisions:	Faculty of Vocational > 24305-Industrial Chemical Engineering Technology
Depositing User:	Erlangga Ardiansyah
Date Deposited:	01 Aug 2023 07:29
Last Modified:	01 Aug 2023 07:29
URI:	http://repository.its.ac.id/id/eprint/100499

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