Hydrogenation unit issues
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What are the factors that cause pressure fluctuations in the reaction system?
1 An increase in reaction temperature leads to a higher cracking temperature, increased H2 consumption, and a drop in pressure. 2 Fluctuations in the amount of fresh hydrogen or failures in the fresh hydrogen generator can cause pressure fluctuations. 3 An increase in the moisture content of the raw materials leads to a rise in pressure. There was internal leakage in the heat exchanger where the reaction products exchange heat with recycled hydrogen, as well as in the high and low pressure heat exchangers, resulting in a drop in pressure. 5 Cold high-pressure loss of control. Fluctuations in the reaction feed rate and H2 consumption lead to pressure fluctuations.
Factors affecting it: 1. The amount of hydrogen supplied is controlled by the new hydrogen return control valve; as this control mechanism operates, the flow rate of supplementary hydrogen increases, which in turn raises the pressure in the reaction system； Conversely, the pressure in the reaction system is low. 2 (Reaction temperature): As the temperature rises, the reaction depth increases, hydrogen consumption rises, while the pressure decreases. Conversely, the pressure increases. 3. (Hydrogen waste emission) Emissions increase while the reaction pressure decreases ； Conversely, it rises. 4. As the speed of the circulator increases, the flow rate of recycled hydrogen rises, and the reaction pressure increases ； The anti-surge valve is closed, the hydrogen mixture flow increases, and the reaction pressure rises ； Conversely, it decreases.