Effect of hydrogen sulfide stripping tower feed temperature on stripping efficiency
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What is the impact of the feed temperature in the hydrogen sulfide stripping tower on the stripping efficiency? Does a too low feed temperature reduce the stripping efficiency? How should the stripping steam be adjusted when the stripping temperature is low? Is it necessary to reduce the amount of stripping steam used?
The stripping tower is used only for rough distillation to separate hydrogen sulfide and certain naphtha components; the temperature requirement is not very strict, but too low a temperature will certainly affect the stripping efficiency. When the temperature is low, it is necessary to increase the amount of stripping steam, reduce the partial pressure of the oil vapor, and increase the gasification rate in order to ensure effective stripping.
For the hydrogenation process, we generally control the high-pressure inlet temperature by controlling the temperature of the stripping tower.
Just control the high-temperature level of heat well
Low temperatures reduce the amount of vaporization, and steam at the bottom of the tower is needed to improve the stripping effect.
The purpose of the stripping tower is to remove hydrogen sulfide, C3, C4, and higher components. Low temperatures inevitably affect the efficiency of stripping, increasing the gas load on the subsequent distillation towers as well as causing corrosion in the equipment in the later stages of the system. Therefore, the feed temperature of the stripping tower must be strictly controlled. If the feed temperature is too low, it not only affects the efficiency of the gas handling but also causes the steam inside the tower to condense, leading to problems such as tower flooding and pump cavitation at the bottom of the tower. In such cases, it is necessary to consider reducing the steam supply to the bottom of the tower or stopping it altogether.