ALYA IKA NUR AFIFAH, 1817011062 (2023) CONVERSION OF COCONUT OIL DERIVED METHYL ESTERS INTO NITROGEN COMPOUNDS AS GREEN CORROSION INHIBITOR. FACULTY OF MATHEMATICS AND NATURAL SCIENCES, UNIVERSITY OF LAMPUNG.
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Abstrak (Berisi Bastraknya saja, Judul dan Nama Tidak Boleh di Masukan)
This study was carried out as an attempt to convert methyl esters derived from coconut oil into nitrogen compounds by reacting the methyl esters with diethanolamine. To produce methyl ester, coconut oil was refluxed with methanol at 70 oC for 3 hours in the presence of zeolite-A catalyst. To produce nitrogen compounds, three samples were prepared by carrying out experiment in an autoclave then heated in an oven at 80 oC for 24 hours, at 100 oC for 24 and 48 hours. The products of the reactions were analyzed using GC-MS and FTIR, then utilized as corrosion inhibitor for mild steel in CO2 saturated brine solution using Wheel test method. The inhibition activity of the samples was evaluated in terms of percentage protection and surface morphology of the sample using SEM-EDX method. The experimental results obtained revealed that the experiments conducted at 80 oC for 24 hours and at 100 oC for 24 hours only produced nitrogen compounds as a minor component, but in the sample produced from the experiment carried out 100 oC for 48 hours, a series of nitrogen compounds were produced, contributing 53.54% to the composition. The results of corrosion testing experiments revealed that the samples exhibit corrosion inhibition activity, with the highest protection of 97.9% was provided by the sample prepared at 100 oC for 48 hours. Without ignoring the need for further research, the results obtained in this study suggest that the nitrogen compounds derived from coconut oil possess promising potential as green corrosion inhibitor. Keywords: zeolite-A, coconut oil methyl ester, nitrogen compounds, corrosion inhibitor, and wheel test.
| Jenis Karya Akhir: | Skripsi |
|---|---|
| Subyek: | 500 ilmu pengetahuan alam dan matematika |
| Program Studi: | FAKULTAS MIPA > Prodi Kimia |
| Pengguna Deposit: | 2301225346 . Digilib |
| Date Deposited: | 07 Feb 2023 01:44 |
| Terakhir diubah: | 07 Feb 2023 01:44 |
| URI: | http://digilib.unila.ac.id/id/eprint/68800 |
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