DEVELOPMENT OF ULTRA LOW SULFUR DIESEL (ULSD) HYDROTREATING CATALYST

• Main Author: Khosashi, Owen
• Format: Final Project
• Language: Indonesia
• Online Access: https://digilib.itb.ac.id/gdl/view/55873
• Institution: Institut Teknologi Bandung

Sulfur is one of the components found in diesel fuel produced by petroleum processing, this component is harmful to the environment and humans. Peraturan Menteri states that the sulfur content used in indonesia must not exceed 50 ppm (Euro IV standard) by 2021 at the latest. An important factor in the production of good diesel fuel is the catalyst used in its production process. NiMo catalyst with ?-Al2O3 support is commonly used in diesel hydrotreating process. Prolyethylene glycol is a polymer compound whichh commonly used as an additive in diesel hydrotreating catalyst. the purpose of this study was to determine the effect of PEG molecular mass on diesel hydrotreating catalyst. PEG was impregnated together with the active metal and promoter in NH4OH solution then dried and calcined. The catalyst was then tested in a batch reactor using diesel feed Pertamina RU IV, Cilacap, with a temperature of 330oC and pressure of 60 bar. The results of the activity test showed that the catalyst modified with PEG4000 gave better activity, namely 1.14 times the commercial catalyst with a conversion of 51.4%, while the catalyst modified with PEG400 had an activity of 1.12 and a conversion of 51.1%.The catalyst activity test was carried out at 330oC, 310oC, and 290oC, the Ea and A for the Cat/PEG4000/CA catalyst were 75,275 J.mol-1 and 681,775 h-1, respectively. Kinetics data is simulated by using Aspen HYSYS software. Operating conditions of a HDT reactor to produce 50 ppm-S ULSD are H2/HC ratio at 250Nm3/m3, pressure at 60 bar, temperature at 330?, and LHSV at 1.75 h-1, on the other hand, to produce 10 ppm-S ULSD, a reactor with LHSV 1 h-1 is required.