Analisis Korosi Atmosfer di Lingkungan Pabrik 1 PT Petrokimia Gresik

Widyaningtyas, Oktavia Maharani (2023) Analisis Korosi Atmosfer di Lingkungan Pabrik 1 PT Petrokimia Gresik. Other thesis, Institut Teknologi Sepuluh Nopember.

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Abstract

Industri petrokimia merupakan industri yang memproduki bahan baku minyak bumi dan gas alam menjadi berbagai macam produk kimia, seperti plastik, cat, pupuk dan sebagainya. Salah satu contoh industri petrokimia di Indonesia adalah PT Perokimia Gresik dengan produk pupuk. Proses produksi pupuk PT Petrokimia Gresik seringkali menggunakan senyawa agresif sehingga menyebabkan terjadinya korosi atmosfer. Tujuan dari penelitian ini adalah untuk menganalis laju korosi serta karakteristik korosi material terhadap eksposur lingkungan di Pabrik 1 PT Petrokimia Gresik. Material yang digunakan untuk analisis laju korosi yaitu UNS S30400, AISI 1005 dan AISI 1005 tercoating. Material akan diletakkan pada 10 titik di area Pabrik 1 PT Petrokimia Gresik dan dilakukan eksposur selama 4 bulan. Analisis pengujian pada penelitian ini menggunakan pengujian OES, pengujian visual, pengujian weight loss dan pengujian XRD. Dari beberapa pengujian yang dilakukan didapatkan hasil bahwa berdasarkan materialnya, AISI 1005 memiliki nilai laju korosi yang paling tinggi di lingkungan Pabrik 1A dan 1B PT Petrokimia Gresik. Sedangkan UNS S30400 memiliki nilai laju korosi yang paling stabil diantara ketiga material. Selain itu juga didapatkan bahwa semakin agresif lingkungannya maka semakin tinggi nilai laju korosi. Pada Pabrik 1A Area ZA mengandung polutan SO42-. Polutan SO42- bertindak sebagai katalis untuk mempercepat korosi sehingga Area ZA memiliki nilai laju korosi yang sangat tinggi. Sedangkan pada Area Urea, Ammoniak, dan Utilitas Pabrik 1A tidak memiliki polutan agresif sehingga memiliki laju korosi yang rendah. Pada Pabrik 1B polutannya tidak bersifat agresif sehingga nilai laju korosi yang terbentuk tidak tinggi. Produk korosi Pabrik 1A didominasi senyawa α-FeOOH. Sedangkan produk korosi Pabrik 1B didominasi senyawa α-FeOOH, Fe3O4, dan FeCl2.
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The petrochemical industry is an industry that produces raw materials for petroleum and natural gas into various chemical products, such as plastics, paints, fertilizers and so on. One example of the petrochemical industry in Indonesia is PT Perokimia Gresik with fertilizer products. PT Petrokimia Gresik's fertilizer production process often uses aggressive compounds that cause atmospheric corrosion. The purpose of this study was to analyze the corrosion rate and corrosion characteristics of the material against environmental exposure at PT Petrokimia Gresik's Plant 1. The materials used for corrosion rate analysis are UNS S30400, AISI 1005 and AISI 1005 coatings. The material will be placed at 10 points in the PT Petrokimia Gresik Plant 1 area and exposed for 4 months. Test analysis in this study used OES testing, visual testing, weight loss testing and XRD testing. From several tests carried out, it was found that based on the material, AISI 1005 has the highest corrosion rate value in the PT Petrokimia Gresik Plant 1A and 1B environment. While UNS S30400 has the most stable corrosion rate value among the three materials. In addition, it was also found that the more aggressive the environment, the higher the value of the corrosion rate. At Plant 1A Area ZA contains SO42- pollutant. Pollutant SO42- acts as a catalyst to accelerate corrosion so Area ZA has a very high corrosion rate value. Meanwhile, the Urea, Ammonia and Plant 1A Utilities Areas do not have aggressive pollutants so they have a low corrosion rate. At Plant 1B the pollutants are not aggressive so that the corrosion rate formed is not high. Plant 1A corrosion products are dominated by α-FeOOH compounds. While the corrosion products of Plant 1B were dominated by α-FeOOH, Fe3O4, and FeCl2 compounds.

Item Type:	Thesis (Other)
Uncontrolled Keywords:	Korosi, Low Carbon Steel, Petrokimia, UNS S30400
Subjects:	T Technology > TA Engineering (General). Civil engineering (General) > TA467 Iron and Steel Corrosion and protection against corrosion
Divisions:	Faculty of Industrial Technology and Systems Engineering (INDSYS) > Material & Metallurgical Engineering > 28201-(S1) Undergraduate Thesis
Depositing User:	Oktavia Maharani Widyaningtyas
Date Deposited:	24 Jul 2023 06:42
Last Modified:	24 Jul 2023 06:42
URI:	http://repository.its.ac.id/id/eprint/99113

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