Reasons for high dry gas pressure

The raw materials become heavier, the reaction depth is too great, stable operation is compromised, safety valves leak, and the amount of dry gas used decreases

It is mainly caused by an imbalance in the amount of dry gas entering and leaving, that is, more dry gas is produced than is consumed, or there is a blockage in the exit path leading to pressure buildup; at its core, it is still a matter of material balance.

This post was last edited by Refiner on 2017-1-1 14:11. 1. Liquid in the dry gas can form a liquid seal, or freezing may occur in the pipelines leading out of the plant when there is a low amount of dry gas, resulting in high pressure. 2. The back pressure of the dry gas at the outlet of the unit is high.

The dry gas production is too high, while the usage of gas is too low, resulting in a lack of balance!

There are many reasons for high dry gas pressure. Firstly and most importantly, an increase in the amount of reactant feed, a change in the properties of the raw materials with an increase in the content of heavy metals, higher catalyst activity, and elevated reaction temperatures can all lead to an increase in the amount of dry gas and thus higher dry gas pressure. Additionally, insufficient absorption and excessive desorption result in a larger volume of lean gas, which also contributes to high dry gas pressure. A shortage of absorbent oil in the absorption tower can likewise cause high dry gas pressure； On the other hand, a malfunction in the dry gas pressure control valve, which causes it to close down or indicates a fault, can also lead to high dry gas pressure. Additionally, pressure buildup in the downstream equipment due to double disconnection can likewise result in high dry gas pressure