Understanding ejector systems necessary to …

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TECHNOLOGYUnderstanding ejectorsystems necessaryto troubleshoot vacuum distillationJames R. Lines Graham Corp. Batavia, complete Understanding of ejectorsystem performance characteristics canreduce the time and expense associatedwith troubleshooting poor crudevacuum distillation unit (CVDU) that may negatively impactthe ejector - system performance ofvacuum-crude distillation units includeutilities supply, corrosion and erosion,fouling, and process 2Tables 1 and 2 are troubleshooting guides toejector and condenser problems in vacuumejector systems . Fig. 1 is a photo of aninstalled ejector at a actual case studies conducted by serviceengineers on CVDU- ejector systems showhow to troubleshoot ejector problems. Thefirst problem was a result of improperreplacement of an intercondenser, and thesecond was a result of underestimation ofnoncondensible loading during design, whichhas recently become a common ejector converts pressure energy ofmotive steam into velocity.

TECHNOLOGY Understanding ejector systems necessary to troubleshoot vacuum distillation James R. Lines Graham Corp. Batavia, …

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