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Ditemukan 3 dokumen yang sesuai dengan query
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Ordas Dewanto
Abstrak :
[ABSTRAK
Material serpih adalah sejenis serpih minyak yaitu material clay atau karbonat yang mengandung banyak organik belum matang, apabila dipanaskan pada suhu tertentu, kandungan organiknya menjadi matang dan berubah secara fisika dan kimia, sehingga dapat menghasilkan bahan energi seperti migas. Dalam penelitian ini campuran material dimodifikasi dengan perbandingan: A=B, AB dan AB. Pengujian TOC menghasilkan clay-organik (SMC) dan karbonat-organik (SMK) menunjukkan kualitas yang sangat baik sebagai serpih minyak (TOC≥12.0%), yang diperkuat hasil analisis SEM (morfologi dan komposisi) dan XRD (interaksi dua material). Hasil analisis Termogravimetri menunjukkan energi aktivasi material serpih clay (209-355 kJ/mol) lebih kecil dibanding karbonat (749-1339 kJ/mol), dan temperatur untuk proses reaksi material serpih clay (40-600OC) lebih kecil dibanding karbonat (75-740OC). Karakteristik tersebut menyebabkan tingkat maturasi material serpih clay lebih cepat dibanding karbonat, diperkuat Tmax serpih clay (315-323OC) lebih kecil dibanding Tmax serpih karbonat (415-493OC). CEC 2 (serpih minyak) memiliki karakteristik yang sama dengan serpih clay (Ea=239 kJ/mol dan T=40- 600OC). OD1-Ast3 memiliki tingkat maturasi yang paling bagus (Ea=234 kJ/mol dan Tmax=315OC) sesuai dengan serpih minyak (CEC 2). Hasil pengujian Rock Eval Pyrolisis menunjukkan material serpih clay dan karbonat mempunyai potensi tinggi (menghasilkan oil dan gas). Hasil pemanasan material serpih diperkuat oleh hasil pengujian FTIR yaitu senyawa dengan gugus fungsi tertentu terlepas dan muncul puncak baru di bilangan gelombang 2900 cm-1 yang menunjukkan keberadaan hidrokarbon ikatan tunggal dari rantai karbon panjang C-H.;
ABSTRACT
The material is a kind of shale oil shale is clay or carbonate material containing organic many immature, when heated to a certain temperature, the organic content of becoming mature and change in physics and chemistry, so it can produce energy materials such as oil and gas. In this study a mixture of materials modified by comparison: A=B, AB and A>B. TOC testing of clay-organic (SMC) produce and organic carbonates (SMK) demonstrate excellent quality as shale oil (TOC≥12.0%), which confirmed the results of scanning electron microscopy (SEM) analysis (morphology and composition) and X-ray diffraction (XRD) (interaction of two materials). The results of thermogravimetric analysis showed activation energy shale clay material (209-355 kJ/mol) is smaller than the carbonate (749-1339 kJ/mol), and the temperature of the reaction process shale clay material (40-600OC) is smaller than the carbonate (75- 740OC). These characteristics cause the maturation level of clay shale material faster than carbonate, shale clay reinforced Tmax (315-323OC) is smaller than Tmax flakes carbonate (415-493OC). CEC 2 (shale oil) has the same characteristics as the flakes of clay (Ea=239 kJ/mol and T=40-600OC). OD1-Ast3 have the most good maturation rate (Ea=234 kJ/mol and Tmax=315OC) in accordance with the shale oil (CEC 2). Test results show the Rock Eval Pyrolisis clay shale and carbonate material has a high potential (produce oil and gas). Results heating shale material reinforced by FTIR testing results are compounds with specific functional groups apart and a new peak appeared at wavenumber 2900 cm-1 which indicate the presence of hydrocarbons single bonds of the carbon chain length of CH.;The material is a kind of shale oil shale is clay or carbonate material containing organic many immature, when heated to a certain temperature, the organic content of becoming mature and change in physics and chemistry, so it can produce energy materials such as oil and gas. In this study a mixture of materials modified by comparison: A=B, AB and A>B. TOC testing of clay-organic (SMC) produce and organic carbonates (SMK) demonstrate excellent quality as shale oil (TOC≥12.0%), which confirmed the results of scanning electron microscopy (SEM) analysis (morphology and composition) and X-ray diffraction (XRD) (interaction of two materials). The results of thermogravimetric analysis showed activation energy shale clay material (209-355 kJ/mol) is smaller than the carbonate (749-1339 kJ/mol), and the temperature of the reaction process shale clay material (40-600OC) is smaller than the carbonate (75- 740OC). These characteristics cause the maturation level of clay shale material faster than carbonate, shale clay reinforced Tmax (315-323OC) is smaller than Tmax flakes carbonate (415-493OC). CEC 2 (shale oil) has the same characteristics as the flakes of clay (Ea=239 kJ/mol and T=40-600OC). OD1-Ast3 have the most good maturation rate (Ea=234 kJ/mol and Tmax=315OC) in accordance with the shale oil (CEC 2). Test results show the Rock Eval Pyrolisis clay shale and carbonate material has a high potential (produce oil and gas). Results heating shale material reinforced by FTIR testing results are compounds with specific functional groups apart and a new peak appeared at wavenumber 2900 cm-1 which indicate the presence of hydrocarbons single bonds of the carbon chain length of CH., The material is a kind of shale oil shale is clay or carbonate material containing organic many immature, when heated to a certain temperature, the organic content of becoming mature and change in physics and chemistry, so it can produce energy materials such as oil and gas. In this study a mixture of materials modified by comparison: A=B, AB and A>B. TOC testing of clay-organic (SMC) produce and organic carbonates (SMK) demonstrate excellent quality as shale oil (TOC≥12.0%), which confirmed the results of scanning electron microscopy (SEM) analysis (morphology and composition) and X-ray diffraction (XRD) (interaction of two materials). The results of thermogravimetric analysis showed activation energy shale clay material (209-355 kJ/mol) is smaller than the carbonate (749-1339 kJ/mol), and the temperature of the reaction process shale clay material (40-600OC) is smaller than the carbonate (75- 740OC). These characteristics cause the maturation level of clay shale material faster than carbonate, shale clay reinforced Tmax (315-323OC) is smaller than Tmax flakes carbonate (415-493OC). CEC 2 (shale oil) has the same characteristics as the flakes of clay (Ea=239 kJ/mol and T=40-600OC). OD1-Ast3 have the most good maturation rate (Ea=234 kJ/mol and Tmax=315OC) in accordance with the shale oil (CEC 2). Test results show the Rock Eval Pyrolisis clay shale and carbonate material has a high potential (produce oil and gas). Results heating shale material reinforced by FTIR testing results are compounds with specific functional groups apart and a new peak appeared at wavenumber 2900 cm-1 which indicate the presence of hydrocarbons single bonds of the carbon chain length of CH.]
2015
D2074
UI - Disertasi Membership  Universitas Indonesia Library
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Fidiyarsi Matari Andri Yatmo
Abstrak :
Oil Shale merupakan salah satu bahan bakar non konvensional berbentuk sedimen batuan halus, yang dapat menjadi sumber energi alternatif. Dalam proses retorting, Oil Shale dapat dikonversi menjadi shale oil dan shale gas. Sebelumnya, terdapat beberapa penelitian yang membahas potensi shale gas untuk memproduksi gas hidrogen. Pada penelitian ini, dilakukan pemodelan sistem menggunakan Aspen Plus untuk mengetahui potensi pemanfaatan keseluruhan shale oil beserta shale gas hasil dari retorting untuk memproduksi hidrogen menggunakan teknologi chemical looping. Selain itu, penelitian ini bertujuan untuk mengetahui efisiensi energi dari sistem apabila meneruskan tahapan produksi hidrogen hingga ke tahap produksi ammonia untuk penyimpanan. Berdasarkan hasil simulasi, produk retorting dari 0,126 kg/s bahan baku oil shale komposisi New Albany, yaitu 0,0063 kg/s shale oil dan 0,0024 kg/s shale gas, dapat memproduksi hidrogen sebanyak 0,0037 kg/s. Hidrogen ini dapat dikonversi menjadi ammonia sebanyak 0,012 kg/s dengan sisa hidrogen sebanyak 0,00089kg/s. Berdasarkan analisis energi, didapatkan efisiensi dari keseluruhan proses oil shale retorting hingga produksi ammonia adalah sebesar 55%. ......Oil shale is one of the non-conventional fuel in the form of fine rock sediments, which can be utilized as an alternative energy resource. In the retorting process, Oil Shale is converted into shale oil and shale gas. Previously, there were several studies that discussed the potential utilization of the shale gas product to produce hydrogen gas. In this study, a simulation was carried out using Aspen Plus to determine the potential of using both shale oil and shale gas products from the retorting process, to produce hydrogen using a chemical looping system. In addition, this study is aimed at analysing the energy efficiency of the system with the additional process of converting hydrogen into ammonia for storage. Based on the simulation results, the retorting product from 0,126 kg/s of oil shale, respectively 0,0063 kg/s and 0,024 kg/s of shale oil and shale gas, could produce 0,0031 kg/s of hydrogen. This amount of hydrogen could be converted into 0,012 kg/s of ammonia, with a remaining hydrogen product of 0,00089 kg/s. Based on the energy analysis, the efficiency of the entire system from the oil shale retorting process up to the ammonia production is 55%.
Depok: Fakultas Teknik Universitas Indonesia, 2023
S-pdf
UI - Skripsi Membership  Universitas Indonesia Library
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Suhendra
Abstrak :
ABSTRAK
Hasil dekomposisi spektral dengan menggunakan metode Smoothed Pseudo Wigner-Ville Distribution (SPWVD) digunakan untuk mengestimasi nilai atenuasi pada data seismik. Tujuan tugas akhir ini adalah untuk mengkarakterisasi reservoar shale pada formasi Gumai yang terletak di Lapangan Abiyoso yang berada di sub cekungan Jambi, cekungan Sumatera Selatan dengan menggunakan dekomposisi spektral. Tahapan pertama yang dilakukan adalah analisis petrofisika dan analisis crossplot untuk mengarakterisasi lapisan reservoar shale. Karakterisasi lebih lanjut dilakukan dengan overlay kurva DlogR dan kurva Transit time sonik. Dari ketiga zona shale yang diprediksi, diperlihatkan bahwa lapisan batuan lempung pada zona Shale 1 merupakan lapisan batuan lempung yang diduga reservoar. Hasil tersebut didukung pula oleh estimasi nilai atenuasi dari dekomposisi spektral. Selanjutnya dekomposisi spektral diteruskan untuk data seismik secara keseluruhan sehingga didapatkan estimasi persebaran reservoar lapisan batuan lempung pada data seismik.
ABSTRACT
The results of spectral decomposition using Smoothed Pseudo Wigner-Ville Distribution (SPWVD) is used to estimate the value of attenuation on seismic data. The purpose of this thesis is to characterize shale reservoir in Gumai Formation at Abiyoso Field in Jambi Sub Basin, South Sumatera Basin. The first stage,it is carried out petrophysical analysis and crossplot analysis to characterize shale reservoir layer. Further characterization is done by overlaying DlogR and Sonic transit time curve. Based on the three predicted shale zone, it is shown that shale layer at Shale zone 1 is estimated the layer of shale reservoir. These results are confirmed also by the estimated value of the attenuation of spectral decomposition. Further spectral decomposition is applied to seismic data set to map distribution of shale reservoir.
Universitas Indonesia, 2012
S43187
UI - Skripsi Open  Universitas Indonesia Library