Issues related to the temperature at the water injection point in hydrogenation units

There are certain requirements for the temperature at the water injection point in hydrogenation units; it is generally recommended to keep it around 20°C. This is to achieve the best hydrogenation results and ensure the safe operation of the equipment. If the temperature at the water injection point is too high or too low, it may affect the rate and efficiency of the hydrogenation reaction, and it may also cause equipment failure or damage. Generally, the water at the injection point should be cold water, as this allows for better control of the temperature at that point. However, in extreme cases, if cold water is not available, water at another temperature can be used. However, it should be noted that water at different temperatures may affect the hydrogenation effect; therefore, it is best to carry out hydrogenation at the recommended temperature. .

No, why is the water injection temperature related to the hydrogenation reaction?

Regarding the injection of demineralized water, I haven’t heard of any specific temperature requirements; the temperature of the demineralized water in our plant is around 40 degrees. Could it be that the factor affecting the reaction temperature is something related to the interconnection between units?

Water injection is carried out to prevent the deposition of ammonium salts. According to API regulations, there are specific requirements regarding the quality of the water used for injection, the flow rate of the water, and the temperature at the injection point; these can be found in the plant’s \"two regulations and one standard.\" It should be noted, however, that the amount of water injected and the temperature at the injection point are also related to the levels of chlorine, nitrogen, and sulfur in the feed to the hydrogenation unit, as well as the volume of production.

There are requirements regarding the temperature at the water injection point, as this relates to the raw materials, the material of the pipes, and corrosion issues as well. The temperature at our water injection point has risen above 190°C. Secondly, the temperature of the water used for injection is also determined based on this concept; as long as it does not affect the temperature at the injection point, the water temperature can be whatever it is.

The selection of the water injection point is primarily to prevent ammonium salt crystallization. Depending on the components that cause salt formation, it is further divided into pre-cooling water injection primarily aimed at removing hydrogen sulfide and ammonia, as well as high-flow inlets before air cooling to prevent the formation of ammonium chloride salts. There are no specific requirements regarding water temperature, but water quality must be taken into consideration

We have requirements regarding dissolved oxygen in the water used for injection; therefore, deoxygenated water is employed, with a temperature of 104 after deoxygenation℃