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Mawardi Anwar
Jurusan Kimia, Universitas Negeri Padang, Indonesia
Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Energy Materials Science & Nanotechnology

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Penggunaan HCl Sebagai Leaching Agent Dan Pengaruh Penambahan H2O2 Pada Desulfurisasi Green Coke Mawardi Anwar; Zul Afkar; Dekna Aswita
Jurnal Periodic Jurusan Kimia UNP Vol 2, No 1 (2013)
Publisher : Departemen Kimia FMIPA UNP

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (474.084 KB) | DOI: 10.24036/p.v2i1.1926

Abstract

Desulfurization research on green coke of Refinery Unit II Dumai production with 0.44% sulfur content has been done. The purpose of this research is to study the performance of leaching  method on green coke desulfurization and find out the effect of HCl concentration, stirring time and the effect of the addition of H2O2 to the green coke desulfurization. In this study obtained the optimum concentration of HCl as the leaching agent is 9 M. The results showed that the stirring time of 60 minutes and 9 M HCl concentration, levels of sulfur that can be separated is 3.58%. Then conducted leaching at the optimum conditions with the addition of 6% H2O2.  Levels of sulfur that can be separated by the addition of H2O2 is 3.68%. In this research, the addition of H2O2 increased  percent of desulfurization.
Penggunaan NaOH Sebagai Leaching Agent Dan Pengaruh Penambahan H2O2 Pada Desulfurisasi Petroleum Coke Mawardi Anwar; Amrin .; Eliza Fitri
Jurnal Periodic Jurusan Kimia UNP Vol 2, No 1 (2013)
Publisher : Departemen Kimia FMIPA UNP

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (220.167 KB) | DOI: 10.24036/p.v2i1.1927

Abstract

A study on the use of NaOH as the leaching agent and the effect of adding H2O2 in desulfurization of petroleum coke. This study aimed to observe the effect of concentration and stirring time on the desulfurization of petroleum coke using NaOH as the leaching agent, and determine the effectiveness of the use of NaOH as a leaching agent in optimum condition in the desulfurization of petroleum coke and see the effect of the addition of H2O2 by leaching method using NaOH. Research on separation of sulfur petroleum coke leaching method performed on samples derived from petroleum coke PT.Pertamina UP II Dumai 0440% sulfur content. To determine the sulfur content in petroleum coke after leaching were analyzed using X-Ray Flouroscence (XRF). In this separation studied the influence of the concentration of NaOH as the leaching agent and the effect of stirring time on levels of sulfur that can be separated. The results showed that the concentrations of NaOH and optimum stirring time, which can be separated sulfur content is 26%. This research also studied the effect of adding H2O2 at the optimum conditions. The results showed 1.5% H2O2 concentration can separate the sulfur in petroleum coke amounted to 1.82%. From the research it can be concluded that the influence of the concentration and time of agitation increases levels of sulfur extracted until a certain optimum value of 75% and 60 min, while the addition of high concentrations of H2O2 less effective. The addition of 1.5% H2O2 can significantly reduce levels of sulfur are extracted at the 90% confidence level.
Co-Authors Amrin . Dekna Aswita Eliza Fitri Zul Afkar