EVALUATION OF SECONDARY NOZZLE TIP ARCH BURNER IN PRIMARY REFORMER USING COMPUTATIONAL FLUID DYNAMICS (CFD)
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 combusti...
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| Format: | Theses |
| Language: | Indonesia |
| Subjects: | |
| Online Access: | https://digilib.itb.ac.id/gdl/view/63121 |
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| Institution: | Institut Teknologi Bandung |
| Language: | Indonesia |
| Summary: | 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. |
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