GENERAL GUIDELINES FOR MATERIALS OF CONSTRUCTION FOR REFINERY UNITS

 GENERAL GUIDELINES FOR MATERIALS OF CONSTRUCTION FOR REFINERY UNITS

  1. GENERAL                                                                                                                                 3
  2. ABBREVIATIONS                                                                                                                    3
  3. REFERENCE DOCUMENTS                                                                                                  3
    1. Project Specifications                                                                                                           3
    2. Main Engineering Standards                                                                                              3
    3. Main Licensors Documents / Specifications / Standards                                                   3
    4. International Standards and Guidelines                                                                              3
  4. DESIGN LIFE & MINIMUM CORROSION ALLOWANCE FOR OPEN-ART

UNITS                                                                                                                                        4

  1. MAIN CORROSION FORMS AND RELEVANT PREVENTIVE MEASURES                    5
    1. Sulfidic Corrosion                                                                                                               5
    2. Wet H2S damage (thinning / SSC / HIC / blistering)                                                          5
    3. Polythionic Acid Cracking                                                                                                  5
    4. HCl Corrosion                                                                                                                     5
    5. Caustic Corrosion                                                                                                                 5
    6. High Temperature Hydrogen Service                                                                                6
    7. Amine Corrosion (general corrosion)                                                                                 6
    8. Amine Cracking (ASCC)                                                                                                    6
    9. Ammonium Bisulfide Corrosion                                                                                          6
    10. Chloride Stress Corrosion Cracking (ClSCC)                                                                    6
    11. Sea Water Corrosion                                                                                                          7
    12. 885°F Embrittlement                                                                                                             7
    13. Temper Embrittlement                                                                                                        8
    14. Low Temperature                                                                                                               8
  2. MAIN CORROSION FORMS FOR CRUDE DISTILLATION UNITS (CDU)                       8
  3. MAIN CORROSION FORMS OF AMINE UNITS                                                                  8
  4. MAIN CORROSION FORMS FOR SOUR WATER STRIPPER UNITS (SWS)                  9

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