Penggunaan NaOH Sebagai Leaching Agent Dan Pengaruh Penambahan H2O2 Pada Desulfurisasi Petroleum Coke

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 H₂O₂at 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% H₂O₂can significantly reduce levels of sulfur are extracted at the 90% confidence level.