Regarding the high-pressure separator to the low-pressure separator
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Why is there such a large pressure difference between the high-pressure separator and the low-pressure separator? What principle?
You can understand the role of high scores and low scores, and over time you will be able to grasp the questions you ask
Different hydrogenation pressure differences exist; the high-pressure hydrogenation pressure difference is above 12 Obar.
The control valve used between the high-pressure separator and the low-pressure separator is a pressure-reducing angle valve. The pressure in the low-pressure separator is generally not greater than 2.0 MPa; this pressure is influenced by the subsequent equipment (the main stripping tower), the balance line of the feed pump equipped with a hydraulic turbine, or the facilities involved in hydrogen recovery. However, it is sufficient that the pressure in the low-pressure separator be higher than the pressure in the first tower of the distillation system
What I’m describing is that the pressure difference in hydrogen refining isn’t that high
Reducing pressure lowers the investment required for subsequent equipment, and it also facilitates adjustments to the product quality in the stabilizer unit, as well as the removal of hydrogen sulfide and light components