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99381 CARBON STEEL FLANGES AND WELDS EVALUATION ON HF-ALKYLATION UNIT

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Product Number: 51300-99381-SG
ISBN: 99381 1999 CP
Author: Leomar Penuela, Jose Chirinos
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In 1995, there were two failures in the 20.000 BPD HF Alky unit at the Amuay Refinery causing a shutdown of the unit. The failures occurred in one flange and one weld in the depropanizer charge carbon steel pipe, containing propane, isobutane and anhydrous hydrofluoric acid at 190 F (88C) and321 psig... Keywords: alkylation, hydrofluoric acid, ultrasonic testing, chemical analysis, on stream inspection, carbon steel fittings, carbon steel pipe, copper, nickel, chromium.
In 1995, there were two failures in the 20.000 BPD HF Alky unit at the Amuay Refinery causing a shutdown of the unit. The failures occurred in one flange and one weld in the depropanizer charge carbon steel pipe, containing propane, isobutane and anhydrous hydrofluoric acid at 190 F (88C) and321 psig... Keywords: alkylation, hydrofluoric acid, ultrasonic testing, chemical analysis, on stream inspection, carbon steel fittings, carbon steel pipe, copper, nickel, chromium.
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