Could you tell me what the filtration precision of each filter in your low-temperature methanol washing system is?
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Could you tell me what the filtration precision of each filter in your low-temperature methanol washing system is? Our filter filtration accuracy is as follows: E09 coiled heat exchanger and two filters of the depleted methanol tank at the bottom of the T4 tower: 250um E16 front (P5 outlet) filter: 2.5um I feel like the filtering accuracy of these filters is too different? What is your situation like? Please discuss! !
The outlet of the thermal regeneration tower mainly filters rust and ferrous sulfide, and the particles are relatively large. The P5 pump you mentioned, I don’t know what process you use or where the P5 pump is. My master told me that the methanol liquid from our T3 may contain ammonium salt crystals, which are mainly used for filtration!
The lower part of the T4 tower is a coarse filter of methanol, which mainly filters rust. The 2.5um filter mainly filters some dust in methanol? The purpose of filtering is different. Therefore, the types of filters are different. The sizes of the two filters are also different. Methanol is mainly caused by transformation dust brought by the previous section and rust caused by corrosion. The Zhezong filtration method is also called the layered filtration method.
Normally, the filter returned from the regeneration tower to the lean methanol tank is generally not very precise. Old devices are not designed and are added later to prevent large impurities from entering the lean methanol tank and affecting the operation of the lean methanol pump. Ours is 100 mesh. In addition, the P5 outlet filter is also 2.5um and the E09 heat exchanger front is 20um.
Your filters are all set to 250 mesh. How often do you clean them?
They are all 100 mesh. After startup, the filter at the bottom outlet of the thermal regeneration tower is cleaned more often. Normal operation is generally once a week, depending on the test pressure difference. The filter at the bottom outlet of the hydrogen sulfide concentration tower is cleaned less frequently.