| dc.contributor.advisor | Sholeha, Novia Amalia | |
| dc.contributor.author | Firdausy, Samudra Ihsan | |
| dc.date.accessioned | 2026-08-04T16:38:17Z | |
| dc.date.available | 2026-08-04T16:38:17Z | |
| dc.date.issued | 2026 | |
| dc.identifier.uri | http://repository.ipb.ac.id/handle/123456789/177139 | |
| dc.description.abstract | Minyak mentah berlilin yang terdapat di lapangan minyak Provinsi Riau memiliki specific gravity 0,90, °API gravity 25,69°, dan CII 5,34, dengan fraksi saturate dominan (73,08%) yang memicu kristalisasi wax. Penelitian ini mengevaluasi efektivitas sepuluh kandidat pour point depressant (PPD A–J) dengan variasi dosis 500–100.000 ppm. Hasil seleksi menunjukkan PPD G berbasis polikarbonat 2000 ppm paling efektif, menurunkan pour point dari 42 °C menjadi 36 °C. Hasil pengujian reologi juga menunjukkan penurunan viskositas dari 2070,1 menjadi 1639,3 cP, dan shear stress dari 21,4 menjadi 16,7 Pa. Karakterisasi ATR-FTIR (pergeseran bilangan gelombang dari 2918 menjadi 2920 cm?¹), XRD (ukuran kristal turun dari 54,6 menjadi 44,2 nm), dan STA (kehilangan massa turun dari 84,11% menjadi 78,70%) mengonfirmasi efektivitas PPD G melalui mekanisme adsorpsi, ko-kristalisasi, dan hambatan sterik. | |
| dc.description.abstract | The waxy crude oil found in the oil fields of Riau Province has a specific gravity of 0.90, an API gravity of 25.69°, and a CII of 5.34, with a dominant saturated fraction (73.08%) that triggers wax crystallization. This study evaluated the effectiveness of ten pour point depressant (PPD) candidates (PPD A–J) at concentrations ranging from 500 to 100.000 ppm. The results indicated that PPD G, a polycarbonate-based depressant at 2000 ppm, was the most effective, lowering the pour point from 42 °C to 36 °C. Rheological test results also showed a decrease in viscosity from 2070.1 to 1639.3 cP, and in shear stress from 21.4 to 16.7 Pa. ATR-FTIR characterization (wavenumber shift from 2918 to 2920 cm?¹), XRD (crystal size decreased from 54.6 to 44.2 nm), and STA (mass loss decreased from 84.11% to 78.70%) confirmed the effectiveness of PPD G through the mechanisms of adsorption, co-crystallization, and steric hindrance. | |
| dc.description.sponsorship | | |
| dc.language.iso | id | |
| dc.publisher | IPB University | id |
| dc.title | Efektivitas Pour Point Depressant dalam Mengatasi Masalah Aliran Minyak Mentah di Lapangan Minyak Provinsi Riau | id |
| dc.title.alternative | The Effectiveness of Pour Point Depressants in Addressing Crude Oil Flow Problems at Oil Fields in Riau Province | |
| dc.type | Tugas Akhir | |
| dc.subject.keyword | laju aliran | id |
| dc.subject.keyword | minyak mentah | id |
| dc.subject.keyword | pour point depressant | id |
| dc.subject.keyword | wax | id |
| dc.subject.keyword | flow assurance | id |
| dc.subject.keyword | crude oil | id |
| dc.subtype | Undergraduate Theses | |