Purification Technology Edition: Daily Question [October 10, 2017]
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What issues should be considered when cooling down the system? Answer: When cooling the low-temperature methanol washing system, it is advisable to control the cooling rate at 4–5°C; this can be achieved by adjusting the circulation volume and the amount of ammonia added. Additionally, it is necessary to keep the temperature difference between the solutions entering and leaving the ammonia cooler below 15°C in order to protect the equipment. The temperature of the lean liquid entering the methanol wash tower can be used as a reference temperature; gas can be introduced when it drops to -20°C.
This post was last edited by wangld on 2017-10-10 at 10:52. When cooling the low-temperature methanol washing system, it is necessary to control the cooling rate at around 4–5°C; this can be achieved by adjusting the circulation volume and the amount of ammonia added. Additionally, it is important to keep the temperature difference between the solutions entering and leaving the ammonia cooler below 15°C, in order to protect the equipment. The temperature of the lean liquid entering the methanol wash tower can be used as a reference temperature; gas can be introduced when it drops to -20°C.
When cooling the low-temperature methanol wash system, it is advisable to control the cooling rate at 4–5°C; this can be achieved by adjusting the circulation volume and the amount of ammonia added. Additionally, it is necessary to keep the temperature difference between the solutions in the inlet and outlet ammonia coolers below 15°C in order to protect the equipment. The temperature of the lean liquid entering the methanol wash tower can be used as a reference point; gas can be introduced when the temperature drops to -20°C.
The system cooling must be carried out at the required rate, in the order of high pressure first and then low pressure. Where pressure and temperature retention are required, record the changes in pressure and temperature at regular intervals when the machine is shut down.
Answer: When cooling the low-temperature methanol washing system, it is advisable to control the cooling rate at 4–5°C; this can be achieved by adjusting the circulation volume and the amount of ammonia added. Additionally, it is necessary to keep the temperature difference between the solutions entering and leaving the ammonia cooler below 15°C in order to protect the equipment. The temperature of the lean liquid entering the methanol wash tower can be used as a reference temperature; gas can be introduced when it drops to -20°C. ...
Answer: When cooling the low-temperature methanol washing system, it is advisable to control the cooling rate at 4–5°C; this can be achieved by adjusting the circulation volume and the amount of ammonia added. Additionally, it is necessary to keep the temperature difference between the solutions entering and leaving the ammonia cooler below 15°C in order to protect the equipment. The temperature of the lean liquid entering the methanol wash tower can be used as a reference temperature; gas can be introduced when it drops to -20°C. ...
Answer: When cooling the low-temperature methanol washing system, it is advisable to control the cooling rate at 4–5°C; this can be achieved by adjusting the circulation volume and the amount of ammonia added. Additionally, it is necessary to keep the temperature difference between the solutions entering and leaving the ammonia cooler below 15°C in order to protect the equipment. The temperature of the lean liquid entering the methanol wash tower can be used as a reference temperature; gas can be introduced when it drops to -20°C. ...
When cooling the low-temperature methanol washing system, it is advisable to control the cooling rate at 4–5°C; this can be achieved by adjusting the circulation volume and the amount of ammonia added. Additionally, it is necessary to keep the temperature difference between the solutions entering and leaving the ammonia cooler below 15°C in order to protect the equipment. The temperature of the lean liquid entering the methanol wash tower can be used as a reference point; gas can be introduced when the temperature drops to -20°C.
When cooling the low-temperature methanol wash system, it is advisable to control the cooling rate at 4–5°C; this can be achieved by adjusting the circulation volume and the amount of ammonia added. Additionally, it is necessary to keep the temperature difference between the solutions in the inlet and outlet ammonia coolers below 15°C in order to protect the equipment. The temperature of the lean liquid entering the methanol wash tower can be used as a reference point; gas can be introduced when the temperature drops to -20°C.
When cooling the low-temperature methanol washing system, it is advisable to control the cooling rate at 4–5°C; this can be achieved by adjusting the circulation volume and the amount of ammonia added. Meanwhile, it is necessary to keep the temperature difference between the solutions entering and leaving the ammonia cooler below 15°C in order to protect the equipment. The temperature of the lean liquid entering the methanol wash tower can be used as a reference temperature; gas can be introduced when it drops to -20°C.