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- Users: jayhawkrider
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Crude Overhead Reflux (cold) Exchangers
Yes, and we've had that debate with our chemical contractor. We've talked to 3 different contractors, and 2 of 3 included neutralizer in their treatment program. No one can seem to distinguish between corrosion caused by under deposit corrosion from the process itself and amine salt deposition...- jayhawkrider
- Post #9
- Forum: Petroleum refining engineering
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Crude Overhead Reflux (cold) Exchangers
Yes, 2 drums. Yes, caustic injection - currently 10 be with project to inject 5 be caustic soon. Have neutralizer and filmer injection on hot and cold bundles - the rates vary with test results and corrosion rates seen on the probes. Not sure what testing we do, I'm the mechanical on the...- jayhawkrider
- Post #7
- Forum: Petroleum refining engineering
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Crude Overhead Reflux (cold) Exchangers
Yes, but test tubes of Duplex didn't show the promise we had hoped. Trying to avoid the expense of titanium with the prospect of water wash on the horizon. We talked to PCS this morning, and they said they know of 4 crude units with the services swapped. 3 of the 4 have water wash systems...- jayhawkrider
- Post #5
- Forum: Petroleum refining engineering
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Crude Overhead Reflux (cold) Exchangers
We have an opportunity to remove the twisted tube HEXs and go with another design all together. Wash system is on the horizon, but not this year. Continuing neutralizer injection, operating above dew point, rerouting some streams from the overhead, and desalters perform well. Don't believe...- jayhawkrider
- Post #3
- Forum: Petroleum refining engineering
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Crude Overhead Reflux (cold) Exchangers
Has anyone here ever installed crude overhead reflux exchangers with the crude on the shell side and vapor on the tube side? (These are the exchangers downstream of the reflux drum and before the fin fan cooling). If so, what were the benefits and problems of configuring the services this...- jayhawkrider
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- Replies: 10
- Forum: Petroleum refining engineering
