PTQ Q3 2025 Issue

S pent solvent

With solids washed from UMF without packings

With solids washed from UMF with packings

Treated solvent

nm(10m)

Figure 5 Electronic solvent particle size distribution plot

Figure 6 Electronic solvent sample images

the first and second filter units, and the effluent stream. The particle size analysis clearly depicts that the majority of the particles present in the feed stream are above 500 nm, as the finest particles are not observed in any significant concentration. The filtered solids from the first and second filters remove particles of 500 nm and above while also capturing a significant mass of finer particles greater than 200 nm. At the outlet of the filtration unit, only a small por - tion of the ultrafine particles remain in the effluent stream. This significantly improves colour and clarity of the solvent stream, as observed in the images of the samples shown in Figure 6 . Conclusion The MagAFS magnetic filtration technology offers a com - prehensive solution for maintaining the purity of circulat - ing solvent streams, a valuable asset for industries relying on high-quality solvent systems. By effectively removing particulates, it reduces regeneration requirements, lowers operational costs, and enhances overall process efficiency. The importance of solvent systems in refining and

petrochemical applications cannot be overstated. Ensuring their efficiency and reliability through advanced filtration technologies like MagAFS is crucial for optimising opera - tions, reducing costs, and maintaining high product quality. As the industry continues to evolve, adopting such innova - tive solutions will be key to staying competitive and achiev - ing long-term success. References 1 Technologies of Natural Gas Sweetening, PenEdu Learning. 2 Butwell, K.F., Kroop, L., 1983: Fundamentals of gas sweetening , University of Oklahoma. 3 Reset Energy, Optimizing amine treating for maximum efficiency , www. resetenergy.com/optimizing-amine-treating-for-maximum-efficiency Sergio A. Robledo is the Senior Technical Manager at UNICAT Catalyst Technologies, LLC, where he provides expert technical advice on the selection, use, and operation of catalysts and technologies. He has more than 25 years of refining experience and holds a Bachelor of Engineering degree in chemical engineering from Stevens Institute of Technology in Hoboken, NJ.

PTQ Q3 2025