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Use
Of Additives To Improve Corrosive Environments Of Petroleum Refineries |
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Module
1. Process–Side Corrosion |
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Module
2. Process–Side Fouling
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Module
3. Cooling Water Treatment |
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Module
1. Process–Side Corrosion |
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1.1
Atmospheric Crude Distillation Unit Corrosion Control |
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a.
Desalting |
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b.
Injection of NaOH |
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c.
Injection of Neutralizer |
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d.
Injection of Filming Inhibitor |
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1.2
Corrosion Control in FCCU Fractionation System |
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a.
Corrosion in FCCU Fractionation System |
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b.
Corrosion Control by Polysulfide |
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c.
Corrosion Control with Filming Inhibitor |
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1.3
Corrosion Monitoring by Electrical Resistance Method |
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a.
Principle |
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b.
Notes on Measurement |
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c.
Notes on Data Interpretation |
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d.
Distinctive Features |
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e.
Case History 1 – Crude Unit Overhead System |
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f.
Case History 2 – Sour Gas Sweetening Unit |
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Module
2. Process–Side Fouling
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2–1
Mechanism of Fouling |
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2–2
Effect of Dispersion on Fouling |
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2–3
Effect of Anti–Polymerization (Anti–oxidation) on Fouling |
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a.
Mechanism of Polymerization and oxidation |
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h.
Effect of Heat |
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c.
Effect of Oxygen |
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d.
Effect of Metal Ions |
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Module
3. Cooling Water Treatment |
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3–1
Types of Cooling System |
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3–2
Advantage of High Concentration Operation of Open
Recirculating Cooling System |
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3–3
Cooling System Corrosion Control |
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3–4
Inhibition of Scale and Deposits in Cooling System |
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3–5
Inhibition of Deposits |
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3–6
Microorganism Control in Cooling System |
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a.
Microorganism Troubles |
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b.
Biocides |
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