Pengaruh Proses Swelling dengan Supercritical Gas CO2 terhadap Penurunan Energi Ikatan Senyawa Hidrokarbon Vacuum Residue

https://doi.org/10.22146/jrekpros.44784

Deby Ansyory(1*), Aditya Retno Utami(2), Sri Haryati(3), Muhammad Djoni Bustan(4)

(1) Jurusan Magister Teknik Kimia, Program Pascasarjana, Fakultas Teknik, Universitas Sriwijaya, Jl. Padang Selasa No. 524, Bukit Lama, Ilir Barat I, Kota Palembang 30121
(2) Jurusan Magister Teknik Kimia, Program Pascasarjana, Fakultas Teknik, Universitas Sriwijaya, Jl. Padang Selasa No. 524, Bukit Lama, Ilir Barat I, Kota Palembang 30121
(3) Jurusan Magister Teknik Kimia, Program Pascasarjana, Fakultas Teknik, Universitas Sriwijaya, Jl. Padang Selasa No. 524, Bukit Lama, Ilir Barat I, Kota Palembang 30121
(4) Jurusan Magister Teknik Kimia, Program Pascasarjana, Fakultas Teknik, Universitas Sriwijaya, Jl. Padang Selasa No. 524, Bukit Lama, Ilir Barat I, Kota Palembang 30121
(*) Corresponding Author

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 K

Penelitian 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.


Keywords


CO2; hidrokarbon; supercritical; swelling; vacuum residue

Full Text:

PDF


References

Abedini, A., Mosavat, N., Torabi, F., 2014, Determination of minimum miscibility pressure of crude oil – CO2 system by oil swelling/extraction test, Energy Technol., 2, 431 – 439.

Alam, Md. S., Ashokkumar, A. B., Siddiq, M., 2019, The density, dynamic viscosity and kinematic viscosity of protic and aprotic polar solvent (pure and mixed) systems: An experimental and theoretical insight of thermophysical properties, J. Mol. Liq., 18, 322 - 350.

Jechura, J, 2018, Refinery Feedstocks & Products Properties & Specification. https://inside. mines.edu/~jjechura/Refining/02_Feedstocks_ &_Products.pdf

Huy, N. C., Shin, W. E., 2015, Hierarchical macro–mesoporous Al2O3-supported NiK catalyst for steam catalytic cracking of vacuum residue, Fuel, 169, 1 – 6

Noroodin, NSM., Salleh, LM., Hartati, M, NM., 2017, Supercritical carbon dioxide (SC-CO2) extraction of essential oil from Swietenia mahagoni seeds, Materials Science of Engineering, 162, 1757 – 899X.

Sorenssen, M, A., 2013, Chemical Potential and Gibbs Distribution. https://www.uio.no/ studier/emner/matnat/fys/FYS2160/h13/book/thermal-lecture-07.pdf

Sotelo, D., Contreras, F. A., Sotelo, C., Jimenez, G., Canales. C. L., 2017, Design and implementation of a control structures for quality products in crude oil atmospheric distillation column, ISA Transaction, 17, 10 - 16

Stratiev, D., Nedelchev, A., Shishkova, I., Ivanov, A., Sharafutdinov, I., Nikolova, R., Mitkova, M., Yordanov, D., Rudnev, N., Belchev, Z., Atanassova, V., Atanassov, K., 2015, Dependence of visbroken residue viscosity and vacuum residue conversion in a commercial visbreaker unit on feedstock quality, Fuel Process. Technol., 138, 595 - 604.



DOI: https://doi.org/10.22146/jrekpros.44784

Article Metrics

Abstract views : 728 | views : 1616

Refbacks

  • There are currently no refbacks.




Copyright (c) 2019 The authors

Creative Commons License
This work is licensed under a Creative Commons Attribution-ShareAlike 4.0 International License.

Jurnal Rekayasa Proses  (print ISSN 1978-287X; online ISSN 2549-1490) is published by Chemical Engineering Department, Faculty of Engineering, Universitas Gadjah Mada. View website statistics.