Liquefied gas refining off-gases containing liquid
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How should the liquid carried in the exhaust gas from LPG refining be dealt with? The pressure in the three-phase separation tank ahead is 0.3 Mpa, while there is no pressure in the exhaust gas tank
Haven’t you masters encountered this situation? The problem of liquid leakage is particularly severe here
Where is the liquid coming from? Alkali regeneration or amine regeneration?
The last edit to this post was made by Refiner on 2018-2-22 at 15:33; unstable control of the pressure at the top of the separation tank resulted in liquid in the exhaust gases
The pressure at the top of our separation tank remains relatively stable
The air volume is high; add a large sedimentation tank for that
I was wondering if anyone else has a device that experiences this same phenomenon
I experience this phenomenon too, mainly due to high air volume. It’s possible to use the additive tank or separator mentioned on floor 7
Our alkaline solution regeneration exhaust gas is directly discharged after gas-liquid separation at the top of the disulfide separation tank (the three-phase separation tank as referred to by the owner), passing through a pressure control valve, without going through a separate gas-liquid separator. The same liquid-carrying phenomenon occurs. After regeneration by heating with alkali solution, the exhaust gas inevitably contains liquid; in cold weather this can easily lead to blockages in the exhaust system, while in warmer weather it is not a major problem. Adding a cooler before the separator would definitely make things much better, in my opinion
Liquid removal requires the use of coagulators, and many companies do this these days