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All Journal Scientific Contribution Oil and Gas LEMBARAN PUBLIKASI MINYAK DAN GAS BUMI
Muh Kurniawan
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Chemical Engineering, Chemistry & Bioengineering Earth & Planetary Sciences Energy Engineering Environmental Science

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Wax Precipitation in Crude Oil by Coutinho Model Based on Conventional Gas Chromatography Data Muh Kurniawan; Adiwar; Kamarza Mulia; Chairil Anwar
Scientific Contributions Oil and Gas Vol. 36 No. 2 (2013): SCOG
Publisher : Testing Center for Oil and Gas LEMIGAS

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29017/scog.36.2.11

Abstract

Wax precipitation in crude oils can produce problems in oil production and transportation operations. Prediction is the key of avoidance or remediation of the wax problem of flow assurance. Among the wax prediction thermodynamic model, Coutinho model can be run using limited laboratory data, but the result is comparably accurate. The model requires n-paraffin distribution, which commonly determined by high-temperature gas chromatography (HTGC) analysis. However, only few laboratories could perform the HTGC. Lemigas has abundant database of crude oil with conventional gas chromatography data. An extended n-paraffin distribution was calculated based on the conventional GC data by performing extrapolation and normalization to total wax content. The n-paraffin distribution was applied in Coutinho model to predict wax precipitation of a crude oil sample. The WAT obtained from the model deviated only 2°C from DSC data. The result was also valid to DSC data in term of precipitated wax amount along temperature range.
PENGARUH TEMPERATUR REAKSI DAN TEKANAN HIDROGEN PADA PENGHIDRORENGKAHAN FRAKSI DISTILAT VAKUM TAR BATUBARA Novie Ardhyarini; Syntha Nardey; Daliya Indra Setiawan Indra Setiawan; Muh Kurniawan
Lembaran Publikasi Minyak dan Gas Bumi Vol. 49 No. 3 (2015): LPMGB
Publisher : BBPMGB LEMIGAS

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Abstract

Penghidrorengkahan fraksi distilat vakum tar batubara dilakukan menggunakan katalis NiMo/Al2O3-SiO2 dalam reaktor autoclave dengan sistem batch untuk menghasilkan bahan bakar minyak.Pengaruh temperatur reaksi (400 – 450oC) dan tekanan hidrogen awal (80-120 bar) pada sifat fi sikadan kimia produk penghidrorengkahan diteliti.
Co-Authors Adiwar Chairil Anwar Daliya Indra Setiawan Indra Setiawan Kamarza Mulia Novie ArdhyArini Syntha Nardey