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Deby Ansyory
Jurusan Magister Teknik Kimia, Program Pascasarjana, Fakultas Teknik, Universitas Sriwijaya, Jl. Padang Selasa No. 524, Bukit Lama, Ilir Barat I, Kota Palembang 30121
Agriculture, Biological Sciences & Forestry Education Energy Environmental Science Public Health Social Sciences

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Pengaruh Proses Swelling dengan Supercritical Gas CO2 terhadap Penurunan Energi Ikatan Senyawa Hidrokarbon Vacuum Residue Deby Ansyory; Aditya Retno Utami; Sri Haryati; Muhammad Djoni Bustan
Jurnal Rekayasa Proses Vol 13, No 2 (2019)
Publisher : Departemen Teknik Kimia Fakultas Teknik Universitas Gadjah Mada

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (593.06 KB) | DOI: 10.22146/jrekpros.44784

Abstract

The present study aims to develop technology to utilize a vacuum residue by reducing its density, viscosity and energy bonding, using a batch reactor equipped with CO2 injection gas in the form of a swelling process. The study was conducted by applying temperature varied between 60 and 100 °C and CO2 flux pressure varied between 1 and 5 MPa, respectively. The study of applying temperature and CO2 flux pressure are used to decrease the bond energy of hydrocarbon compounds in the form of solid vacuum residue. Furthermore, a series of reaction time was carried out started in the range of 10-30 minutes to obtain the optimum reaction time. The result showed that at temperature of 100°C, pressure of 5 MPa and variation of time, the density, viscosity, and  decrease in energy bonding (ΔG) were in the range of 0.919-0.902 g/cm3, 495-166 cSt, and 8.627–6.436 J.s, respectively. A B S T R A KPenelitian ini bertujuan untuk mengembangkan teknologi pemanfaatan vacuum residue dengan mengurangi densitas, viskositas dan energi ikatan. Pada penelitian ini digunakan reaktor batch yang dilengkapi dengan gas injeksi CO2 dalam bentuk proses swelling. Penelitian dilakukan dengan menerapkan variasi temperatur  antara 60-100 °C dan tekanan fluks CO2 bervariasi antara 1-5 MPa. Rentang temperatur dan tekanan fluks CO2 yang digunakan dalam penelitian ini dimaksudkan untuk mengurangi energi ikatan senyawa hidrokarbon dalam bentuk padatan vacuum residue. Selanjutnya, serangkaian waktu reaksi dilakukan mulai dari 10, 15, 20, 25, dan 30 menit untuk mendapatkan waktu reaksi yang optimum. Hasil penelitian menunjukkan bahwa pada temperatur konstan (100 °C), tekanan konstan (5 MPa) dan variasi waktu diperoleh penurunan densitas (0,919–0,902 g/cm3), viskositas (495-166 cSt), dan penurunan energi ikatan (ΔG) menjadi 8,627–6,436 Js.
Pengaruh Proses Swelling dengan Supercritical Gas CO2 terhadap Penurunan Energi Ikatan Senyawa Hidrokarbon Vacuum Residue Deby Ansyory; Aditya Retno Utami; Sri Haryati; Muhammad Djoni Bustan
Jurnal Rekayasa Proses Vol 13, No 2 (2019)
Publisher : Departemen Teknik Kimia Fakultas Teknik Universitas Gadjah Mada

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (593.06 KB) | DOI: 10.22146/jrekpros.44784

Abstract

The present study aims to develop technology to utilize a vacuum residue by reducing its density, viscosity and energy bonding, using a batch reactor equipped with CO2 injection gas in the form of a swelling process. The study was conducted by applying temperature varied between 60 and 100 °C and CO2 flux pressure varied between 1 and 5 MPa, respectively. The study of applying temperature and CO2 flux pressure are used to decrease the bond energy of hydrocarbon compounds in the form of solid vacuum residue. Furthermore, a series of reaction time was carried out started in the range of 10-30 minutes to obtain the optimum reaction time. The result showed that at temperature of 100°C, pressure of 5 MPa and variation of time, the density, viscosity, and  decrease in energy bonding (ΔG) were in the range of 0.919-0.902 g/cm3, 495-166 cSt, and 8.627–6.436 J.s, respectively. A B S T R A KPenelitian ini bertujuan untuk mengembangkan teknologi pemanfaatan vacuum residue dengan mengurangi densitas, viskositas dan energi ikatan. Pada penelitian ini digunakan reaktor batch yang dilengkapi dengan gas injeksi CO2 dalam bentuk proses swelling. Penelitian dilakukan dengan menerapkan variasi temperatur  antara 60-100 °C dan tekanan fluks CO2 bervariasi antara 1-5 MPa. Rentang temperatur dan tekanan fluks CO2 yang digunakan dalam penelitian ini dimaksudkan untuk mengurangi energi ikatan senyawa hidrokarbon dalam bentuk padatan vacuum residue. Selanjutnya, serangkaian waktu reaksi dilakukan mulai dari 10, 15, 20, 25, dan 30 menit untuk mendapatkan waktu reaksi yang optimum. Hasil penelitian menunjukkan bahwa pada temperatur konstan (100 °C), tekanan konstan (5 MPa) dan variasi waktu diperoleh penurunan densitas (0,919–0,902 g/cm3), viskositas (495-166 cSt), dan penurunan energi ikatan (ΔG) menjadi 8,627–6,436 Js.
Upgrading vacuum residue by swelling of CO2 gas and catalytic cracking process by using Al2O3 catalyst. Aditya Retno Utami; Deby Ansyory; Sri Haryati; Muhammad Djoni Bustan
Sriwijaya Journal of Environment Vol 5, No 2 (2020): NEW ENVIRONMENTAL ISSUES
Publisher : Program Pascasarjana Universitas Sriwijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (439.885 KB) | DOI: 10.22135/sje.2020.5.2.69-75

Abstract

Vacuum residue is a waste of the production process in the petroleum refining industry. Even though vacuum residue is waste, it still contains hydrocarbon compounds that can be reused as a petroleum derivatives products that have commercial value. Improving the quality of vacuum residue from waste to commercial products is carried out in several stage of the process. In this research, we applied the swelling process as an initial step to weaken and break the long chain carbon of vacuum residue in order to reduce energy consumption. Furthermore, the swelling products will be reprocessed in the catalytic cracking processes to improve the quality and quantity of the product yield. The application of the swelling process can reduce operating conditions temperatures up to 350ºC, and the use of Al2O3 catalyst in the cracking process can produces the product yield that have a good quality after performing the GC-MS analysis test. The content of hydrocarbons in this vacuum residue shows the dominance of aromatic compounds with high octane numbers. The optimum composition of 5%-wt catalyst showed chromatogram composition of 166 compounds with the highest peak at 3.26 retention time owned by toluene with an octane number of 91.
Co-Authors Aditya Retno Utami Aditya Retno Utami Muhammad Djoni Bustan Sri Haryati Sri Haryati