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Submitted Chris Haslego, Nov 21 2011 11:21 AM | Last updated Nov 21 2011 01:29 PM
Category: | Refining |
Question: | What are some common causes of tube rupture in a hydrogen plant steam reformer? |
Keywords: | v1i10,tube,rupture,hydrogen,steam,reformer |
Answer: | The following factors lead to shortened tube life and may eventually result in tube rupture:1. Prolonged operation at excessive tube skin temperatures2. Thermal Cycling of the Reformer Furnace (Frequent plant shutdowns and restarts)3. Wide variations in the feedgas composition (if no Pre-Reformer)4. Loss of Catalyst Activity5. Operation at too low inlet S/C ratio6. Poor firing in furnace - direct flame impingement against the tubes7. Uneven/Imbalanced heating in the radiant sectionAlso check out the case study below.Source: CERP Message Board, Kevin Nurse |
Links: | Link to Synetix Case Study |
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