EVALUATION OF SECONDARY NOZZLE TIP ARCH BURNER IN PRIMARY REFORMER USING COMPUTATIONAL FLUID DYNAMICS (CFD)

• Main Author: Arsadduddin, Zulkarnaen
• Format: Theses
• Language: Indonesia
• Subjects: Teknik kimia
• Online Access: https://digilib.itb.ac.id/gdl/view/63121
• Institution: Institut Teknologi Bandung

Primary reformer is a critical equipments in Ammonia Plant of PT Pupuk Kujang. It operates to reform natural gas into synthesis gas (H2, CO and CO2) through the steam-methane reforming (SMR) reaction. SMR is a very endothermic reaction, in which the heat of reaction is supplied from fuel combustion in the burner. Since the beginning of the plant establishment, the flame pattern in primary reformer visually not optimum. The flame is not straight and crossing another row. It is followed by glowing and reddish tube that indicate of hot spot. This phenomenon caused the lifetime of catalyst to be short. In this research the variables affecting the primary reformer performance especially in overheat zone and the effect of secondary nozzle tip arch burner size regarding the flame pattern will be investigated. The methods used in this reseach were numerical methods with Computational Fluid Dynamics (CFD) software. The outputs of this evaluation shown that burner tip size isn’t adequate for the fuel flow. Thus, the velocity of the fuel in iburner tip is higher than 100 m/s. Moreover, by adding secondary arch burner, mixing between oxygen and fuel will be worse than using only primary tip burner.