Fittriani, Shindy Eka (2019) Karakteristik Coal Bed Methane (CBM-3), Tambang Batubara Muaraenim, Lapangan Rambutan, Cekungan Sumatera Selatan. Other thesis, Institut Teknologi Sepuluh Nopember.
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Abstract
Identifikasi biomarka fraksi hidrokarbon aromatik dan alifatik pada sampel Coal Bed Methane (CBM-3) batubara Muaraenim, Lapangan Rambutan, Cekungan Sumatera Selatan telah dilakukan untuk mengetahui potensi kerogen (gas prone atau oil prone) serta siklus karbonnya. Tipe distribusi n-alkana bimodal dan adanya turunan naftalena menunjukkan sumber bahan organik dari tumbuhan tingkat tinggi Angiospermae dan keterlibatan alga/bakteri. Rasio Pr/Ph = 7.78 dan Ts/Tm = 0.21 menunjukkan lingkungan pengendapan oksik. Adanya kelompok senyawa sterana, hopanoid dan oleanoid tak jenuh serta nilai CPI = 4.42 dalam sampel CBM-3 mengindikasikan batubara muda. Tingginya kelimpahan senyawa 2-MP pada sampel dan nilai MPI = 0.99, mengindikasikan CBM-3 yang dianalisa tergolong ke dalam kerogen tipe III yang cenderung menghasilkan gas (gas prone). Kematangan rendah menunjukkan gas metana terbentuk pada tahap diagenesis melalui siklus karbon pendek.
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Identification of biomarker from aromatic hydrocarbon and aliphatic hydrocarbon of sample Muaraenim Coal Bed Methane (CBM-3), Rambutan Field, South Sumatra Basin has been conducted to determine the kerogen potential (gas prone or oil prone) and its carbon cycle. The type of bimodal n-alkane distribution and the presence of naphthalene derivative indicates high source of plant organic matter from Angiosperms and algae or bacteria. The Pr/Ph ratio = 7.78 and Ts / Tm = 0.21 shows the oxidation deposition environment. The presence of unsaturated compounds of sterene, hopanoid and oleanoids and also CPI = 4.42 in CBM-3, indicate sample is immature coal. The high abundance of 2-MP compounds in the sample and MPI = 0.99, shows that CBM-3 analyzed belongs to type III kerogen which tends to produce gas (prone gas). Low maturity indicates that gas is formed at the diagenetic stage through a short carbon cycle.
| Item Type: | Thesis (Other) |
|---|---|
| Additional Information: | RSKi 553.2 Fit k-1 2019 |
| Uncontrolled Keywords: | Biomarka, CBM, KG-SM, Angiospermae |
| Subjects: | Q Science > QD Chemistry > QD251.2 Chemistry, Organic. Biochemistry Q Science > QD Chemistry > QD471 Chemical compounds - Structure and formulas Q Science > QD Chemistry > QD63 Extraction Q Science > QE Geology > QE471 Sedimentary rocks. Sedimentology |
| Divisions: | Faculty of Natural Science > Chemistry > 47201-(S1) Undergraduate Thesis |
| Depositing User: | Shindy Eka Fittriani |
| Date Deposited: | 07 Jun 2023 07:50 |
| Last Modified: | 07 Jun 2023 07:50 |
| URI: | http://repository.its.ac.id/id/eprint/63975 |
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