STUDI PENAMBAHAN ASAP CAIR TEMPURUNG KELAPA GRADE 2 SEBAGAI INHIBITOR KERAK KALSIUM SULFAT (CaSO4) MENGGUNAKAN METODE UNSEEDED EXPERIMENT
| Main Author: | Hafid Darmais Halan, 1417011049 |
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| Format: | Bachelors NonPeerReviewed Book Report |
| Terbitan: |
UNIVERSITAS LAMPUNG
, 2019
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| Subjects: | |
| Online Access: |
http://digilib.unila.ac.id/57492/15/ABSTRAK.pdf http://digilib.unila.ac.id/57492/2/SKRIPSI%20FULLL.pdf http://digilib.unila.ac.id/57492/3/SKRIPSI%20TANPA%20BAB%20PEMBAHASAN.pdf http://digilib.unila.ac.id/57492/ |
Daftar Isi:
- Pembentukan kerak CaSO4 pada pipa industi menjadi masalah serius karena dapat menghambat proses perpindahan fluida multi fasa terutama pada industri minyak dan gas. Penelitian tentang penghambatan pertumbuhan kerak menggunakan bahan-bahan yang mudah didapat dengan biaya rendah masih terus dikembangkan untuk menurunkan biaya pembersihan pipa dan menurunkan angka kerugian. Dalam penelitian ini telah dilakukan pengujian inhibitor asap cair tempurung kelapa Grade 2 pada kerak kalsium sulfat (CaSO4) menggunakan metode unseeded experiment. Efektifitas tertinggi terjadi pada konsentrasi larutan pertumbuhan CaSO4 0,050 M dan konsentrasi inhibitor yang ditambahkan sebesar 250 ppm, diperoleh persen efektivitas sebesar 89,49%. Asap cair pada penelitian ini dianalisis menggunakan infrared (IR) dan gas chromatography-mass spectrometry (GC-MS). Dari hasil pengamatan asap cair mengandung senyawa fenol, asam asetat, metanol, nitroetana, 2-metil-2-siklopentenon, fenol-2-metoksi, dan 2-furankarboksaldehida. Berdasarkan analisis menggunakan scanning electronmicroscopy (SEM) dan X-Ray Diffraction (XRD) menunjukkan bahwa kerak CaSO4 tanpa penambahan inhibitor berukuran lebih besar dan terdiri dari kristal fasa gypsum dan basanit sedangkan dengan penambahan inhibitor, kerak CaSO4 menjadi berukuran lebih kecil dan terdiri dari kristal fasa basanit, gypsum dan sedikit anhidrit. Berdasarkan pengamatan menggunakan Particle Size Analyzer (PSA) distribusi ukuran partikel kerak CaSO4 juga mengalami penurunan setelah penambahan inhibitor. Kata Kunci : Inhibitor, Asap Cair, Tempurung Kelapa, CaSO4, Unseeded Experimen ABSTRACT The formation of CaSO4 scale in industrial pipes are important problem because it can inhibit the transfer of multi phase fluid needed in the oil and gas industry. The research on the inhibition of scale growth uses easy to obtain and low cost that continue to be developed of decrease pipeline installation costs and losses. In this study, the test of inhibitor from coconut shell liquid smoke of Grade 2 to calcium sulfate (CaSO4) scale formation using unseeded experiment method. The highest effectiveness occurs at the growth solution concentration of CaSO4 of 0.5 M and concentration of inhibitor added of 250 ppm with the value of 89.49%. Therefore the liquid smoke in this study was analyzed using infrared (IR) and gas chromatography-mass spectrometry (GC-MS). From the results of the immediate observation, liquid smoke contains phenol, acetic acid, methanol, phenol-2 methoxy, 2 furancarbocaldehide, 2-propanon, nitroethane, and dimethylketone compounds. Based on the analysis using Scanning Electron Microscope (SEM) and X-ray Diffraction (XRD) they show that CaSO4 crystal without the addition inhibitor have a big size and consisted of gypsum and basanite phase. With the addition of inhibitors, CaSO4 crystals are smaller and consists of basanite, gypsum, and slighty anhydrite phase. Based on the analysis using Size Analyzer (PSA) the size distribution of CaSO4 crystal particles also decreased after receiving inhibitors. Keyword : Liquid Smoke, CaSO4, Scale, Inhibitor,, Unseeded Experiment