Why are adsorption filters not commonly used in steam turbine or diesel engine lubricating systems?

The use of adsorption filters in steam turbine or diesel engine lubricating systems is limited primarily because they can remove additives from the lube oil. These additives are essential for maintaining the performance and longevity of the lubricating oil. Additives play critical roles, such as providing anti-wear properties, enhancing thermal stability, and preventing corrosion, among other benefits. If the adsorption filters remove these additives, the oil can become less effective, leading to increased wear on engine components and potentially causing damage to the engine or turbine over time.

While considerations such as cost, frequency of maintenance, and potential clogging are valid concerns in lubrication systems, the primary issue with adsorption filters is their impact on the chemical composition of the lubrication oil. This characteristic can significantly compromise the performance of the oil, making it unsuitable for the rigorous demands of turbine and engine operations where protection and stability are paramount.