Why should the temperature be kept around 50 degrees in cold high-score mode?
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Let’s discuss what consequences can occur if the temperature is too high
The high temperature in the cold high-pressure section results in an excessive amount of liquid in the gas phase, which means that there is a lot of liquid at the compressor inlet; this can lead to liquid slugging and damage to the compressor.
To reduce liquid entrainment in the gas phase and protect the compressor.
The main functions of cold high pressure: (1) Ensuring residence time. (2) Perform gas-liquid and oil-water separation. (3) The foam breaker prevents liquids from entering the compressor. (4) Ensure oil-water separation and maintain a certain height at the oil outlet. If the cold high-pressure temperature is too high, there will be more liquid in the gas phase, which can easily damage the compressor.
Excessively high temperature causes liquid to accumulate in the hydrogen circulation buffer tank on the rear side
Excessively high temperatures can lead to an increase in the liquid phase in the circulating hydrogen separator tank
It easily causes the compressor to operate with liquid.
At excessively high temperatures, the circulating gas is prone to containing liquid, reducing the desulfurization efficiency
If the cooling temperature after the reaction exceeds 45 degrees, the linear velocity of the circulating hydrogen decreases, which hinders proper separation of oil and gas; as a result, the compressors downstream suffer from severe liquid contamination and get damaged
If the temperature of the cold high-pressure stream is too high, liquid carryover in the high-pressure gas becomes severe, which will cause the liquid separation tank at the inlet of the hydrogen circulation compressor to fill up or even show an overestimated level. This will have a direct impact on the hydrogen circulation compressor. If the compressor is not affected by liquid carryover in the gas, then it is entirely possible to eliminate the liquid separation tank at its inlet. At the high speeds at which the hydrogen circulation compressor operates, severe liquid carryover can cause serious damage to the equipment. The consequences of damage and leakage in the hydrogen system’s equipment are self-evident
The main concerns relate to the compressor: first, poor separation leads to light hydrocarbons remaining in the gas phase, causing foaming in the liquid stream; second, liquid can easily enter the compressor, causing damage to it, and the inlet temperature of the compressor is also high.