Gas flow rate
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Could that supervisor tell us how much liquid is passed through during the low-temperature methanol washing process each time, what the time interval is, what precautions should be taken during this process, and how to speed up the process?
Could that supervisor explain that when using low-temperature methanol washing for gas transfer, each time a volume of 10,000 standard cubic meters is transferred, the interval between such transfers should be determined based on the pressure difference in the system after gas transfer and the regeneration process. During gas transfer, it is important to maintain stable pressure differences in the absorption towers as well as stable liquid levels in each tower; by doing so, gas transfer can be carried out quickly and the system can remain stable.
It seems that 10,000 cubic meters is a bit too much; I think adding around 2,000 each time would be more appropriate
At the beginning, spend half an hour introducing a gas flow of around half load; during this gas introduction process, pay attention to the pressure difference in the absorption tower as well as the methanol level in the system. After guiding it in, adjust the liquid level and wait patiently for it to meet the standards. Once it meets the requirements, the system can be put into operation; then the load can be increased gradually. When increasing the load, it is essential to ensure that the quality of the process gas leaving the absorption tower is satisfactory. Pay attention to the temperature of the methanol used for cooling at the very top – it should not exceed the design temperature. After each gas release, wait until the cooling capacity has been restored before increasing the load further.
The most crucial aspect of gas guiding is to properly control the liquid levels in each tower, the temperatures at various points, and the pressure differences between the towers. Smooth operation is the key; haste makes waste. After gaining experience, one becomes proficient on their own.
That’s right; it mainly depends on the liquid level. Let me give you a simple example: current flow meters only display values when they reach several thousand or tens of thousands, so there is no reference for the flow rate. By experience. It mainly depends on changes in liquid level and temperature.