Effect of stopping the high-pressure amine-poor liquid pump in hydrocracking on reaction temperature
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What are the effects of shutting down the high-pressure amine-poor liquid pump in hydrocracking on the reaction and distillation processes, and in particular on the temperatures in the refining section and the cracking section?
There is too much hydrogen sulfide; more waste hydrogen needs to be discharged. Low hydrogen partial pressure
It will affect the depth of the reaction, but the temperature change should not be visible on the screen; corrosion should be taken into consideration over a long period of time
Stopping the cyclic hydrogen desulfurization system reduces the efficiency of purification, leading to an increase in sulfur content in the product, but it increases the degree of cracking.
If the hydrogen sulfide content in the cycle is high, the temperature may decrease
The decrease in temperature in the refining section is caused by an increase in the hydrogen sulfide content in the circulating hydrogen; according to chemical equilibrium theory, this leads to a reverse shift in the equilibrium, resulting in a reduced degree of reaction. The temperature in the cracking reactor rises due to incomplete refining, and since the cracking agent is acidic, hydrogen sulfide is also acidic. This leads to an increase in the activity of the cracking agent, thereby causing an increase in temperature after the feedstock is cracked in the cracking reactor and refined.
High-pressure air-cooling tubes will be greatly affected~
That is, the purity of hydrogen decreases, the hydrogen sulfide content in the system increases, and the hydrogen consumption decreases