Pengaruh proses swelling dengan supercritical gas CO2 terhadap penurunan energi ikatan senyawa hidrokarbon vacuum residue

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)
Aditya Retno Utami (Jurusan Magister Teknik Kimia, Program Pascasarjana, Fakultas Teknik, Universitas Sriwijaya Jl. Padang Selasa No. 524, Bukit Lama, Ilir Barat I, Kota Palembang 30121)
Sri Haryati (Jurusan Magister Teknik Kimia, Program Pascasarjana, Fakultas Teknik, Universitas Sriwijaya Jl. Padang Selasa No. 524, Bukit Lama, Ilir Barat I, Kota Palembang 30121)
Muhammad Djoni Bustan (Jurusan Magister Teknik Kimia, Program Pascasarjana, Fakultas Teknik, Universitas Sriwijaya Jl. Padang Selasa No. 524, Bukit Lama, Ilir Barat I, Kota Palembang 30121)

Jurnal Rekayasa Proses
Vol 13 No 2 (2019): Volume 13, Number 2, 2019

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.