PROCESS AND APPARATUS FOR TREATING HYDROCARBON STREAMS

摘要

A process and apparatus are disclosed for treating a hydrocarbon stream, the process including flowing the hydrocarbon stream through a hydrocarbon treating vessel, heating a portion of the hydrocarbon treating vessel to a predetermined temperature and for a predetermined amount of time and controlling sensitization and chloride stress corrosion cracking of the portion of the interior surface of the hydrocarbon treating vessel.

主权项

1. A process for treating a hydrocarbon stream, the process comprising:
flowing the hydrocarbon stream through a hydrocarbon treating vessel; heating at least a portion of an interior surface of the vessel to a predetermined vessel temperature of 400° C. or greater for 300 hours or more; and controlling sensitization and chloride stress corrosion cracking of the portion of the hydrocarbon treating vessel by employing a hydrocarbon treating vessel with at least the portion thereof formed of a novel austenitic stainless steel alloy comprising 0.005 to 0.020 wt-% carbon, 10 to 30 wt-% nickel, 15-24 wt-% chromium, 0.20 to 0.50 wt-% niobium, 0.06 to 0.10 wt-% nitrogen, up to 5% copper, and 1.0 to 7 wt-% molybdenum to restrict sensitization and chloride stress corrosion cracking of the portion of the interior surface.