The amine solution is not up to standard
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Our regeneration unit has been failing to meet the required standards lately. Initially, the liquid contained oil; even after oil removal, it still did not meet the specifications, and the operating parameters have not changed significantly compared to before. What causes it? How does your device control oil in the rich liquid?
What methods do you mainly use for oil removal? If swirl separation or sedimentation in large tanks cannot remove the emulsified oil from the water, the concentration of organic substances in the liquid will increase. This leads to higher energy consumption during the concentration process of liquid ammonia, without any improvement in its quality. We have some experience in this area that we can share with you. (18691895023/15091621214)
Regeneration efficiency decreases, and the amount of thermally stable salts in the amine solution increases
Generally, the presence of oil in the amine solution is caused by excessive levels of C5 components in the liquefied gas, or by fluctuations in the pressure of the dry gas system. It’s difficult to deal with an amine solution that has been contaminated by oil; at the moment, the only option I have is to replace the amine solution. I’m not sure if there are any better solutions
Isn’t the cost of replacing the desulfurization agent a bit high? The rich liquid flash tank has pressure oil lines, which can be used to pump the oil inside to the absorption and stabilization unit
Check whether increasing the flash temperature and reducing the operating pressure of the flash tank will help, and also see how well the amine liquid purification is working Furthermore, new desulfurizing agents are added to increase the overall concentration of the amine solution