Sulphuric Acid Corrosion is an acidic environment "disease" commonly occurring in sulfuric acid alkylation units where process control or water contents of acids deviate from design operation. As with HF alkylation units, sulfuric acid carryover into equipment and piping systems that were not constructed to resist sulfuric acid at certain concentrations and temperatures can lead to higher corrosion rates. Reactor effluent lines, reboilers, deisobutanizer overheads, caustic treating systems, and flare lines are particularly vulnerable. However, with rigid control of acid concentration, fluid velocity, temperature and the avoidance of acid carryover, sulfuric acid alkylation units can be operated reliably with high integrity.

 

Is this definition incomplete? You can help by contributing to it.

Share this Topic

Related Topics

Amine Cracking Ammonia Stress Corrosion Cracking Brittle Fracture Carburization Caustic Cracking Cavitation Chloride Stress Corrosion Cracking Cooling Water Corrosion Corrosion Fatigue Corrosion Under Insulation (CUI) Cracking Decarburization Embrittlement Erosion Corrosion Fatigue (Material) Graphitization High Temperature Hydrogen Attack (HTHA) Hydrochloric Acid Corrosion Hydrofluoric Acid (HFA) Corrosion Hydrogen Assisted Cracking Hydrogen Blistering Hydrogen Embrittlement Hydrogen Induced Cracking (HIC) Hydrogen Stress Cracking Hydrogen Sulfide (H2S) Corrosion Microbiologically Induced Corrosion (MIC) Naphthenic Acid Corrosion (NAC) Phosphoric Acid Corrosion Polythionic Acid Stress Corrosion Cracking (PASCC) Spheroidization Stress Assisted Corrosion Stress Corrosion Cracking (SCC) Stress-Oriented Hydrogen Induced Cracking (SOHIC) Sulfidation Corrosion Temper Embrittlement Thermal Fatigue Vibration Fatigue Wet H2S Cracking