2025 Spring Meeting and 21st Global Congress on Process Safety
Session: Ethylene Plant Maintenance & Reliability
https://app.sli.do/event/8TpPRL13efWRoWuVrxSf4d/live/questions?clusterId=eu1 The Maintenance & Reliability Session provides critical maintenance and reliability aspects of ethylene plant operations, emphasizing the interplay between mechanical integrity, process efficiency, and operational longevity. Key topics include: Pyrolysis Furnace Integrity: The impact of carburization and thermal cycling on furnace tubes highlights how material degradation affects performance. Stress analysis of radiant coil return bends further explores failure mechanisms and strategies for mitigating structural risks. Coking in Steam Cracking Coils: As ethane cracking coils age, the transition from radical to catalytic coking presents challenges in fouling management. Understanding these mechanisms helps in maintaining efficiency and extending operational lifespan. Instrumentation and Measurement Accuracy: Accurate temperature and flow measurements are pivotal. The sessions cover sensor accuracy for tube skin and inlet designs in coil outlet temperature monitoring, and the influence of pressure tapping diameters on flow measurement reliability. Both contribute to precise process control and diagnostics. Material and Corrosion: Analysis conducted by an independent third party attributed the corrosion primarily to organic acids, notably formic and acetic acid of oxidation systems. This integrated approach offers plant professionals actionable insights to enhance equipment performance, reduce downtime, and support sustainable operations in ethylene production.
Chair
Thomas Garza, Chevron Phillips Chemical Co
Co-Chair
Lucas Baldesberger, E2G