Pengaruh Konsentrasi CaCO3 dan Laju Alir Gas CO2 Terhadap Korosi Pada Baja Karbon

Khamdi, Muhammad Rifqi (2024) Pengaruh Konsentrasi CaCO3 dan Laju Alir Gas CO2 Terhadap Korosi Pada Baja Karbon. Masters thesis, Institut Teknologi Sepuluh Nopember.

Text 6001221012-Master_Thesis.pdf - Accepted Version Restricted to Repository staff only until 1 October 2026. Download (1MB)

Abstract

Penelitian ini bertujuan untuk mengetahui pengaruh konsentrasi CaCO3, aliran gas CO2, dan temperatur terhadap perilaku korosi baja karbon. Bahan dasar yang digunakan dalam penelitian ini adalah batu kapur dari Kabupaten Tuban, Jawa Timur. Metode presipitasi dengan pencampuran larutan digunakan untuk sintesis kalsium karbonat. Metode ini dipilih untuk mendapatkan kemurnian CaCO3. Variasi penelitian ini yaitu laju alir gas CO2 sebesar 1 L/min dan 2 L/min, konsentrasi larutan CaCO3 700 ppm dan 1.000 ppm, dan temperature 60 ˚C. Laju korosi spesimen dengan metode kehilangan berat pada larutan CaCO3 700 ppm dan 1.000 ppm dengan laju alir gas CO2 1 L/min berturut-turut 1,71 mmy dan 1,81 mmy. Sedangkan dengan laju alir gas CO2 2 L/min berturut-turut 1,33 mmy dan 1,25 mmy. Laju korosi spesimen dengan metode polarisasi tafel dengan laju alir gas CO2 1 L/min berturut-turut 0,48 mmy dan 0,58 mmy. Sedangkan pada laju alir gas CO2 2 L/min sebesar 1,37 mmy dan 0,98 mmy. Produk korosi pada spesimen mempunyai fasa kalsit dan siderit.
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This research objective is to determine the effect of CaCO3 concentration and CO2 gas flow rate on corrosion of carbon steel. The material used in this research is limestone from Tuban Regency, East Java. The precipitation method with solution mixing is used for synthesizing of calcium carbonate. This method was chosen because the purity of CaCO3 can be form. The variations in this research are variations in the CO2 gas flow rate of 1 L/min and 2 L/min, which is for each variation using two types of solutions, namely 700 ppm and 1.000 ppm CaCO3 solutions. Using the weight loss method, the corrosion rate of specimens in solutions containing CaCO3 700 ppm and 1.000 ppm with a CO2 gas flow rate of 1 L/min is 1,71 mmy and 1,81 mmy. Meanwhile, the corrosion rate of the specimens in solutions containing CaCO3 700 ppm and 1.000 ppm with a CO2 gas flow rate of 2 L/min is 1,33 mmy and 1,25 mmy. For the Tafel polarization method, the corrosion rate of the specimen in solutions containing CaCO3 700 ppm and 1.000 ppm with a CO2 gas flow rate of 1 L/min is 0,48 mmy and 0,58 mmy. Meanwhile, the corrosion rate of the specimens in solutions containing CaCO3 700 ppm and 1.000 ppm with a CO2 gas flow rate of 2 L/min is 1,37 mmy and 0,98 mmy. The corrosion products in the specimens have calcite and siderite phase.

Item Type:	Thesis (Masters)
Subjects:	Q Science > QC Physics > QC100 Crystals. Q Science > QD Chemistry > QD553 Electrochemistry. Electrolysis
Divisions:	Faculty of Science and Data Analytics (SCIENTICS) > Physics > 45101-(S2) Master Thesis
Depositing User:	Muhammad Rifqi Khamdi
Date Deposited:	13 Aug 2024 08:36
Last Modified:	13 Aug 2024 08:36
URI:	http://repository.its.ac.id/id/eprint/114228

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