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Discussion Forums - The Hendrix Group
HomeHomeDiscussionsDiscussionsOil Refinery Co...Oil Refinery Co...Internal bellows expansion joints inside FCC reactorsInternal bellows expansion joints inside FCC reactors
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6/29/2007 9:00 AM
 
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[updated:LAST EDITED ON Jun-29-07 AT 11:57 AM (CDT)]Hi Mr. C.V.Srinivasan Tank you very much for your usual good and well fundament answers. I am ware of most of your remarks. I just want to know about, other users experience of bellows expansion joint installed on top of duct riser between the VSS (vortex separation systems) chamber and FCC reactor cyclones. From my experience it seems to me that the behaviour of the referred expansion joint is very critical for the liability of the reactor. My expectations for the above expansion joint are coke build up on the convolutions, loss of flexibility and cracking of bellows plies, distortions on cyclones cross-overs and on top dome of VVS chamber. Receive my best regards Luis Marques
 
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7/3/2007 9:00 AM
 
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We are planning to inspect the internal bellows during next planned shutdown scheduled during this year end.Hopefully i can share experience after inspection. You can post the message to fcc forum and there is a possibility that you may get an answer.Also please check the T-8 committee discussion which was available in Refin Cor-6.0 latest version database published by NACE. regards,
 
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