This research was carried out to simulate of Replacing Dimethyl Disulfide (DMDS) with Disulfide Oil (DSO) using Aspen HYSYS. In this paper, injection of DSO issimulated. The simulation is based on cracking hydrocarbons such as ethane and methane in the pilot.By simulating and installing this pilot before the furnace, 99.99% hydrogen sulfide is gained and the other sulfur-containing materials, mercaptans, etc. do not remain in the furnace. The simulation results the 99% H2Sconversion of DSO in outlet stream. The model is able to predict the conversion rate of sulfur material to H2S in outlet stream.Finally, GC (gas chromatography) analysis was carried out and compared with the simulation to validate the model and to perform the case study calculations.The reactorof set upis modeled with Gibbs reactor. The results of simulation are validated against calculated data from GC results on built pilot’s composition in the feedare also found to decrease with temperature increasing at 800 °C and converted to H2S completely. First step of this study is the development of Cracking with DSO Process using Aspen HYSYS version 8.8 and comparing the model's results with GC analysis ofAmir Kabir Company's results.Experimental data from the DSO Pilot were used as a basis to perform the process simulation using Aspen HYSYS.
