How to put the H2S methanol filters into use and switch them?
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The H2S-rich methanol is pumped out of the reabsorption tower using a high-pressure pump at a pressure of 1.2 MPA. After exiting the tower, it is cooled to a temperature of -35 degrees, and then passes through two sets of filters. How should the H2S methanol filters be put into operation and switched? The filter is equipped with a pressure gauge, a vent valve, a drain valve, an inlet valve, and an outlet valve. How to put it into operation and make switches? Detailed matters.
Tell me, what region does your craftsmanship come from? I’ve never heard of the things you mentioned. We are Linde Process; the system has two filters, one is a methanol-poor filter and the other is a methanol-rich filter. The lean methanol filter is located on the outlet pipeline of the thermal regeneration tower, while the rich methanol filter is situated on the outlet pipeline at the bottom of the hydrogen sulfide concentration tower.
First, the drain valve of the backup filter should be closed, and the inlet valve of the backup filter opened to allow air to escape. Once liquid starts flowing out evenly, the air release valve should be closed, and finally the outlet valve of the backup filter should be opened. Operation of the backup filter is complete. Close the inlet and outlet valves of the primary filter, and open the drain and vent valves to drain liquid from the filter. This should be the same as when the oil filter is taken out of service and put into use