Skid systems, maintenance

The oldest of the various systems was commissioned when the plant first opened in 1985 it has been operating continuously 24 hours a day. The turboexpander-compressor set has proved its durability, requiring only lube oil skid maintenance prior to its first overhaul after many years of operation. 

There is an advantage to using multiple skids in that multiple skids provide redundancy for the system one skid can still be on line while the other is off line for cleaning or maintenance. Additionally, multiple skids can be used to juggle variable product water demands. See Chapter 15.2 for more information about variable demands and multiple RO skids. 

Non-routine procedure such as equipment clean-outs and preparation of equipment for maintenance Auxiliary equipment operations inciuding as examples LEV and Ventilation Systems, Heat/Cool Skids, Water (Soft, RO, WFI, Tower, etc.) Systems, Instrument and Process Air Systems, Waste Treatment Systems, Cooling (Glycol Refrigeration) Systems, Steam Generation, and others Safety and operational issues Change control procedures ... 

There are two types of seal oil systems.- gravity and pressurized. The gravity-feed seal oil system reservoir is mounted above and in view of the compressor, whose elevation is set by the compressor vendor. The sour oil traps can be integral with the lube oil console skid or located on a separate skid. The pressurized seal oil system is a pump-around facility whose components are integral to the lube oil console skid or mounted on a separate d. If components are mounted on a separate skid, placement must accommodate seal oil console operation and maintenance,... 

---