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Journal : Scientific Contribution Oil and Gas

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.
Environmental Impacts Of The Oil And Gas Platform Decommissioning R. Desrina; Chairil Anwar; Tri Muji Susantoro
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.36.2.13

Abstract

Many of the oil and gas installations in the Indonesian Sea are reaching the end of their economic production life. Typically, oil and gas fields have an economic life of 20 to 40 years and a decommissioning program will be required and predicted to peak during the period 2010-2020. Some of them are located in shallow water such as those around Pulau Seribu, Java Sea, and South China Sea; some others are in deeper water such those at Makasar Straits and Moluccas Sea. Many different opinions exist on the benefits and problems of a partial platform removal or a complete removal. For some reasons platforms would be a good fishing spot. On the other hands, an unseen hazard could be left behind by the platforms. Even a complete removal of the platforms is conducted but without proper clearing of the ocean floor, the unused platforms still can cause hazards. For the management of the seas outside the territorial waters, worldwide nations have historically entered into international agreements and conventions. These agreements and conventions that have been entered into under the umbrella of the United Nations are Geneva Convention, the United Nations Convention on the Law of the Sea (UNCLOS) and the International Maritime Organization (IMO) Guidelines. Nationally, there is little information concerning with the decommissioning project. This paper is intended to highlight options for decommissioning of offshore platforms, its environmental impacts, and regulations that could be referred to following the decommissioning proposal. The technological aspects of the structural decommissioning of platforms are beyond the scope of this paper.
CURRENT USES AND FUTURE CHALLENGES FOR ZEOLITE IN THE INDONESIAN OIL AND GAS PROCESSING INDUSTRY A.S. Nasution; Chairil Anwar; E. Jasjfi
Scientific Contributions Oil and Gas Vol. 22 No. 2 (1999): SCOG
Publisher : Testing Center for Oil and Gas LEMIGAS

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29017/scog.22.2.120

Abstract

Oil and gas industry uses zeolite as an adsorbent to reduce moisture content of natural gas in LNG Plant, and as catalyst to convert the heavy petroleum fractions feeds into light clean fuels in refinery. Low quality crude oil, low residual fuel demand, and an increased demands and spesifications for light products (gasoline, kerosene, and diesel oil) and petrochemical products, future challenges for utilization zeolite as cracking catalyst in refinery are encouraging.
Carbon Monoxide Axidation Over Pt/Y-Alumina Catalyst Triyono Triyono; Chairil Anwar
Scientific Contributions Oil and Gas Vol. 21 No. 2 (1998): SCOG
Publisher : Testing Center for Oil and Gas LEMIGAS

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29017/scog.21.2.259

Abstract

Oxidation of CO has been studied on Pt/y-alumina catalyst. The catalyst was produced by impregnating y-alumina with hexachloroplantic acid solution, calcined, oxidized and reduced at the optimum condition. Catalyst was characterized by nitrogen sorption measurement and scanning electron microscope (SEM). By optimization of calcination, oxidation and reduction on the catalyst preparation, a residual serface area of 129.14 m²/gram was obtained. The resulting catalyst has a high activity for the conversion of CO to CO₂.
Co-Authors A.S. Nasution Achmad Wicaksono Achmad Wicaksono Achmad, Fariz Adiwar Adiwar Adiwar, Adiwar Afdhilah, Nur Aini Agustian, Rolando Ahmad Ghiffari Ahmad Zakaria Aini, Nehlam Nur Aji Laksono, Ilham Alifiana Rahmawati Almufidah, Evi Zahroh Alvi Ariyanti, Sindy Rosita Ananda Faridhatul Ulva anandika maharani, Azzahra ayu Andi Hairil Alimuddin Andri Buang Andriani, Rena Anggraeni, Putri Dian Anggraini, Rizki Maulidianti Anliyanita, Roza Argentina, Fiva Arif Bimantara Arifiani Agustin Amalia Arifuddin, Maulana Rizqi Arisusanto, Wahyu Puput Artanto, Ardi aryani, Inda astri Aryani, Indah Astri Asmalia, Resy Asriani Hasanuddin Aulia Zikri, Syafanissa Aynuddin, . Aynuddin, Aynuddin Ayu Shavira, Febriana Azhari, Dalilah BAMBANG KUNARTO Bonaventura, Ridho BTAG, Noer Laelly Budi Santoso Budi Utama, Budi Busroni Choiri, Efendi Choiriyyah, Rif’atul Cicilia Nancy, Cicilia Cindy Kesty Cut Nelly Dahlang Tahir Dalilah Dalilah Darise, Ramla Ilham Desi Suci Handayani Desrina, R Devi Nur Anisa Dewantoro Lase Dewi Arsinta Dewi Sri Rahayu, Dewi Sri Dian Adhe Bianggo Naue Dian Fahriani Dinda Andini Putri Djanis, Ratnawati L. Djanis, Ratnawati Lilasari Djasmasari, Wittri Djirimu, Moh. Ahlis Djuhria Wonggo Djuhria Wonggo Dwi Budi Santoso Dwi Handayani Dwi Handayani Dwi Putra Wijaya E. Jasjfi Edi Suryanto Edo Tondas, Alexander Edy Suandi Hamid Eichi Septiani Eko Jokolelono Elvi Sunarsih Elviani, Rosyada Endang Sri Lestari Endiyani Endiyani Endiyani Erlyta Septa Rosa Estin Nofiyanti Eunike Mongi Fachrurrazie, . Fadela, Dian Mira Fahmi Fahmi Farida Millias Tuty Fastabiqul Khoiroh Faudunasokhi Telaumbanua Fetty Herlina Fikroh, Retno Aliyatul Fitriansyah, Aidil Ghifari, Ahmad Gita Dwi Prasasty Hadi, Wahid Syamsul Hafsah Hafsah Hafyarie Harnan Hajar, Aprilita Halidah Halidah, Halidah Hanapi, Hariani Hapin Afriyani Hariyanto, Widia Eka Haryanto, Didid Hasan Hatipah Herizal Herizal Hernita Hernita Herry Hermansyah Holisoh, Holisoh Humeira Hutagalung, Fajar Y.S.T. Ibad, Irsyadul Iche Andriyani Liberty, Iche Andriyani Ika Rezvani Aprita Ika Rezvani Aprita Indrayani Irhami Irhami Irhami Irmayanti Irmayanti Irmayanti Irmayanti, Irmayanti Irmayanti, Miss Irna Nursanti Irsan Saleh Irwansyah, Defi Izzulhaq, Muhammad Agung Jafar, Moh. Ikram Januar Sitorus, Rico Jhon Riswanda Jojo Hidayat Jumina Jumina Kafidin Muzakki Kalvin Albert Parinding Kamarza Mulia Kamarza Mulia, Kamarza Khoiroh, Fastabiqul Komda Saharja Kurnia Kurniawan, Muh Kurniawan, Yehezkiel Steven Kussuryani, Yanni Kussuryani, Yanni Laendatu Paembonan Lestari, Dewi Arum Lien Damayanti Lukmannulhakim Putra M. Athuf Thaha Maghfirah Maghfirah Marhawati Mappatoba Marlina Martadiansyah, Abarham Maskuri Maskuri Maulidan Firdaus Melpa Yohana Sianipar Miftahurrizqiyah, Miftahurrizqiyah Mirza, Muhammad Raffi Mizar Liyanda Moh. Rasyid Ridho Mongi, Eunike Muammar Khaddafi Mudinillah, Adam Muh Kurniawan Muhaimin Ramdja Muhammad Baharul Iman Muhammad Ihsan Muhammad Irsan Saleh Muhammad Ridho Sadewa Muhammad Syahrul Mubarok Mulyaningtyas, Wishni Lestarini Mulyanti Munandar, Nurharis Mustofa Mustofa Muzakki , Kafidin Mu’awanah, Isnin Aulia Ulfah Nafis, M. Azie Azizman Nahrani, Ulya Najmah, Najmah nFN Supriyanto nFN Sutardi Niharo, Nishfu Syahrin Nolly Julfery Nompo, Sahara Novita Dwi Adeliyah Noviyanti Eliska Nur Aini Afdhilah Nur Alam Fajar Nur Alam Fajar Nur Qomariyah Nuraini, Kalila Nurdiani Nurdiani, Nurdiani Nurdiani, . Nurhayati Nurjanah, Novi Nurohmah, Beta Achromi Nuswil Bernolian Oktaviani, Suci Pambudi, Wisnu Permana, Adhi pian, Intan Tirsa Praciana, Yuvi Arinta Prameswarie, Thia Prasasti, Gita Dwi Pratama, Ardhya Ayu Prayitno, Tono Eko Priastomo, Yoga PUJI LESTARI Purnomo, Abdul Harits Putra, Restu Frandana R. A. Leni Septiana R. Desrina Rachmi, Silvia Rachmy, Silvia Rahman, Maizar Ramadhantri, Rizkha Ramayanti, Indri Reinner Ishaq Lerrick Respati ., Respati Retno Aliyatul Fikroh Rico Januar Sitorus Ristanti, Ririn Rita Sunartaty Rizki Amy Lavita Rosalina Rosalina Rosalina, . Rostika Flora Rostika Flora Rotama, Bintang Armando Sabirin Matsjeh Sabrina Ainur Haliza Salman, Nurcholis Salvari Gusti Ayu Dwi Putri Saprudin Saprudin Saraswati Annisa Saudah Sharfina, Diana Shiddiq, Abdul Halim Shobih Shobih Sinung Hendratno, Sinung Sita Dewi, Aditya Sitorus, Rico J Soetrisno Hadi Sri Agustina Sri Juari Santosa Sri Raviani Styani, Erna Sudirman Sukandar Djokosuhardjo Sumardjo, Damin suparman suparman Suraiya Nazlia Suri Purnama Febri Surmin, Azalia Sabila Andi Susilawati Susilawati Susilawati, Susilawati Susiwati, Susiwati Switha, Elfinchia Tiara Syafriyandi Syaputra, Dadang Syarif'ah, Siti Nur Syarifah Nadia Tambunan, Jenny Anna Margaretha Taslimah Taslimah Theodorus Theodorus Titin Aryani Tri Muji Susantoro Tri Muji Susantoro, Tri Muji Triyono Triyono Tutik Dwi Wahyuningsih Veri Ilhadi Verly Dotulong, Verly Wadhah, Ambar Nabilah WARDAH, ZAHROTUL Wardani, Anifah Tiara Kusuma Wega Trisunaryanti Wega Trisunaryanti Widiantara, Aji Bagus Widyantara, Aji Bagus Winarto Haryadi Wulandari Widya Kusuma, Yeni Wulandari, Lucia Putri Yanuar, Ananto Yulisda, Desvina yusnita, Reni Zen Hafy Zulfaa Gunawan Zulkarnain, Mohammad Zulvia Maika Letis