The polypropylene pellets in the turbulent ball tower are replaced too frequently

Could you first introduce your process and workflow? To facilitate analysis by sea industry professionals

Our facility employs post-desulfurization; the process is as follows: The gas coming from the elution section enters the turbulent ball tower for desulfurization in series during normal operation, where it comes into contact with the desulfurization liquid sprayed from the top of the tower. This allows for the absorption of substances such as H2S and HCN from the gas. The gas free of H2S and HCN is sent, in part, to the coke oven for heating purposes, another portion is sent to the benzene removal section for use in tube furnaces, and some more is used in gas boilers; the remaining part is exported. The desulfurization-rich liquid flowing out from the lower part of the turbulent ball tower passes through the water seal tank of the tower before entering the solution circulation tank. After the catalyst storage tank supplies catalyst solution, it is pumped by the solution circulation pump to the solution heat exchanger for heat exchange (heating in winter, cooling in summer), and then sent to the regeneration tower for regeneration. At the same time, compressed air is introduced from the bottom of the self-regeneration tower to enable the desulfurization liquid to be oxidized and regenerated within the tower. The regenerated desulfurization lean liquid is returned to the ball-stripping tower for reuse. The desulfurized rich liquid flowing out from the lower part of desulfurization tower B enters the semi-poor liquid tank after desulfurization. After catalyst solution is added from the catalyst storage tank, it is pumped to desulfurization tower A using a semi-poor liquid pump. Gas is sprayed at the top of the tower for desulfurization; the desulfurized rich liquid then passes through the liquid seal tank of the desulfurization tower and enters the rich liquid tank. From there, it is pumped to a solution heat exchanger for heat exchange, and subsequently enters the regeneration tower. Compressed air and the desulfurized rich liquid flow together into the regeneration tower from its lower part, where the desulfurized rich liquid is oxidized and regenerated. The regenerated poor desulfurization liquid is returned to the top of the desulfurization tower for use in spraying purposes. The sulfur foam floating on top of the regeneration tower flows by gravity into the foam tank; there, it is stirred by agitators and heated by steam, after which it is pumped into the sulfur melting vessel using a foam pump. Inside the vessel, the sulfur foam settles and separates, with the sulfur sinking to the bottom where it is melted by steam. The clear liquid discharged from the top of the sulfur melting tank flows into the solution buffer tank; after cooling, it is pumped to the solution circulation tank using a solution buffer pump for reuse. The sulfur discharged from the lower part of the sulfur melting tank is cooled and then packaged for export. Preparation of the alkaline solution: Soda ash is added once a day. The container used for mixing is an alkaline solution preparation tank; fresh water is first added, followed by soda ash. Appropriate steam is then used to heat the mixture, and stirring is carried out to ensure its dissolution. The resulting alkaline solution is pumped into the solution circulation tank and the semi-poor liquid tank, so as to maintain the pH value of the desulfurization solution between 8.5 and 9.1. In the event of an accident, the desulfurization solution in the desulfurization tower is pumped from the low-level tank to the emergency tank using a submersible pump ； All desulfurization liquid in the regeneration tower flows automatically into the accident tank and the solution circulation tank; the remaining liquid in the pipes flows into the low-level tank, from where it is pumped to the accident tank via a submersible pump.

We experience the same phenomenon in our brine system as well; many small balls form at the bottom of the storage tank. It should also be caused by turbulence. The components are the main polymer and salts. I don’t know how to avoid this imagination.