THE HIGH-PERFORMANCE CRITICAL INFRASTRUCTURE COMPANY Easy to Install | Cost Effective to Deploy | Durable for Decades DiamondWrap® HTA" 80" MDEA Pressure Vessel in USA PIPE DETAIL Customer: Large Ammonia Plant in US Vessel Diameter: 80 Design Pressure: 315 psi Vessel Contents: Amines, CO2 Vessel Defect: Severe internal corrosion DEVELOPMENT A nitrogen plant in the US had an MDEA stripper unit suffering from internal corrosion. Previous remediation consisted of welding patches on the outside of the unit, which resulted in stress concentrations and the possibility of under deposit corrosion. A third party stepped in to assist with the FEA on vessel and to determine the extent of the corrosion. DESIGN Citadel Technologies team of engineers designed repairs for each defect according to ASME

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