Determine that the amount of new hydrogen is insufficient

I have no idea. Will this reduce the system’s pressure? Will it cause the purity of the recycle hydrogen to decrease over time?

You can determine whether there isn’t enough hydrogen by the following methods: observing the hydrogen indicator on the equipment, checking whether the equipment’s operating efficiency has decreased, and listening for any abnormal noises. If possible, using professional hydrogen detection instruments for measurement is also a good approach. .

System pressure drops; the return line of the new hydrogen compressor is opened wide

Let’s discuss it in the context of a specific situation

As long as the purity of the recycle hydrogen meets the requirements, a drop in system pressure indicates that the amount of make-up hydrogen is insufficient

1. Purity of the incoming hydrogen 2. System pressure 3. Purity of hydrogen in the system. If the equipment is functioning properly, these are the parameters to check

If the amount of new hydrogen is insufficient, it will cause the opening degree of the return line to decrease, so as to ensure an adequate amount of hydrogen available for the reaction (please correct me if I’m wrong; I’m still a beginner in chemical engineering, thanks a lot)

To determine that there is insufficient new hydrogen, it can be assessed from the following aspects: 1. Reactor performance – Decreased conversion rate: The conversion rate of the reactor drops significantly. Temperature fluctuations: The reactor temperature is unstable, with abnormal swings. 2. Product quality: Increase in impurities: The level of impurities in the product rises. Quality does not meet standards: The product quality fails to meet the required standards. 3. Pressure changes: System pressure decreases: The partial pressure of hydrogen drops, affecting the reaction equilibrium. 4. Hydrogen flow rate: Flow reduction – The hydrogen flow meter indicates that the flow rate is significantly lower than the normal value. 5. Data analysis: Decrease in hydrogen concentration: A decrease in hydrogen concentration was detected by the gas analyzer. 6. Equipment operation – Compressor malfunction: Increased load on the hydrogen compressor or abnormal noise. 7. Process parameters: Abnormal hydrogen-to-oil ratio: The hydrogen-to-oil ratio is below the normal range. 8. Energy consumption changes: Increase in energy consumption: The energy used per unit of product rises. 9. Operation records: Historical data comparison – The hydrogen consumption is abnormal when compared to historical data. 10. Instrument indication and alarms: Relevant instruments emit alarm signals indicating a low hydrogen level. Remedial action: Check the hydrogen supply: Verify whether the supply system is functioning properly. Adjust operating parameters: Optimize reaction conditions. Equipment maintenance: Inspect and maintain the hydrogen compressor and flow meter. Increase hydrogen supply: Increase the amount of hydrogen supplied as necessary. Through these methods, it is possible to determine whether the amount of new hydrogen is insufficient and take appropriate measures.