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All Journal Petrogas : Journal of Energy and Technology
Sarungu', Selvia
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Chemical Engineering, Chemistry & Bioengineering Decision Sciences, Operations Research & Management Earth & Planetary Sciences Electrical & Electronics Engineering Energy

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Pengaruh Suhu Kalsinasi Dalam Pembentukan Katalis Padat CaO Dari Cangkang Keong Mas (Pomacea canaliculata L) Mukminin, Amirul; Fajar, Muhammad; Sarungu', Selvia; Andrianti, Irma
PETROGAS: Journal of Energy and Technology Vol 1, No 1 (2019): March
Publisher : Sekolah Tinggi Teknologi MIGAS

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58267/petrogas.v1i1.8

Abstract

CaO sebagai katalis heterogen telah berhasil dibuat dari cangkang keong mas (Pomacea canaliculata L) dengan metode kalsinasi suhu tinggi. Kalsinasi masing-masing dilakukan pada suhu 600°C, 700°C, dan 900°C selama 4 jam. Hasil difraksi sinar-X menunjukan Puncak karakteristik kalsium oksida (CaO) pada sudut 2θ = 32,16°; 37,15°; 64,16° dan 67,5°, yang dikonfirmasi sesuai dengan standard CaO (JCPDS No. 82-1690). Berdasarkan data TGA kalsinasi cangkang keong mas pada suhu 900°C selama 4 jam diketahui mampu mengkonfersi cangkang keong mas menjadi katalis CaO sebanyak 46,37% berat. Pada suhu kalsiniasi 600°C dan 700°C selama 4 jam, menghasilkan CaCO3 kalsit 11,1% berat, dan  CaCO3 vetiret 2,79% berat. Hasil SEM menunjukkan bahwa ukuran partikel serbuk padatan terkecil dimiliki oleh katalis CaO yaitu 13-1,2 µm dengan sebaran yang homogen. CaCO3 kalsit pada 600oC dan 700oC masing-masing memiliki ukuran antara 2,2 mm - 2,5 µm dan 1,6 mm - 1,25 µm dengan sebaran yang heterogen.
ANALISIS KEEKONOMIAN PROYEK KERJA ULANG (WORKOVER) SUMUR X LAPANGAN XD MENGGUNAKAN METODE PSC (PRODUCTION SHARING CONTRACT) Sarungu', Selvia; Batistuta Losong, Enosh Aksedurt; Firdaus, Firdaus
PETROGAS: Journal of Energy and Technology Vol 8, No 1 (2026): MARCH
Publisher : Sekolah Tinggi Teknologi MIGAS

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58267/petrogas.v8i1.206

Abstract

Well X in the XD Field is a natural gas production well located in the XD field, South Sumatra, which is experiencing a decline in production caused by excess water production at a flow rate of 4 MMscfd and then repairs are carried out through rework, namely squeeze cementing. With the aim of the well producing gas optimally again. In a gas production volume of 1,095 Mmscf for 1 year of production from the “X” well, the result s of the calcu1ation of economic indicators at the time of planning on gas prices 5 USD/MMBTU obtained a net present value of 807 M US $, an internal rate of return of 379% and a payout time of 0.20 years based on the PSC (Production Sharing Contract) model. 
Co-Authors Amirul Mukminin Andrianti, Irma Batistuta Losong, Enosh Aksedurt Firdaus Firdaus Muhammad Fajar