What is the impact of a leak in the inlet gas heat exchanger of the methanol synthesis tower on the methanol synthesis system?
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What is the impact of a leak in the inlet gas heat exchanger of the methanol synthesis tower on the methanol synthesis system?
What is the impact of a leak in the inlet gas heat exchanger of the methanol synthesis tower on the methanol synthesis system? 1. The one-way conversion rate has decreased ； 2. Methanol production decreased ； 3. By-product steam is reduced. Everyone is welcome to discuss!
Ask myself and answer myself, O(∩_∩)O~ Isn’t it heat exchange between the inlet and outlet? Shouldn’t the inlet pressure be higher than the outlet pressure? Let’s see how many can be strung together? There shouldn’t be many, right?
The leakage amount varies depending on the structure of the gas-to-gas heat exchanger.
After leakage, large amounts of CO and CO2 circulate within the system, resulting in a significant increase in the power consumption of the compressor
1. The active gas is lost, resulting in a decrease in the synthesis conversion rate. 2. The circulation rate in the synthesis tower has decreased compared to before; accordingly, the current drawn by the circulator has also decreased. 3. In the hydroformylation process used in ammonia synthesis, even a slight increase in the concentration of trace substances in the raw gas used for synthesis can, in severe cases, lead to shutdown of the process or poisoning.
The size of the leakage matters; if the leakage is small, there’s no noticeable effect, but if it’s large, it’s as if the synthesis tower has been short-circuited, and anything can happen. The conversion rate is low, the pressure difference in the synthesis tower decreases, over-temperature occurs, and the system experiences overpressure. . . .
After the heat exchanger experienced leakage, the circulation rate of the methanol synthesis tower decreased. However, the circulation rate of the recycle gas compressor increased compared to before the leakage occurred; therefore, power consumption should have increased as well
What is the impact of a leak in the inlet gas heat exchanger of the methanol synthesis tower on the methanol synthesis system? 1. The one-way conversion rate has decreased ； 2. Methanol production decreased ； 3. Reduction in by-product steam ； 4. Catalyst degradation 5. Conversion rate also decreases 6. Temperature of the synthesis tower bed drops
The actual gas flow into the tower decreases; the actual one-pass conversion rate increases; fresh gas consumption rises; the capacity of the recycler needs to be increased; and the amount of by-product steam decreases