A ssistance Technique Case 1 – Reactor Design 1. Choose main conditions – Pressure, cycle length, type feed, product, flowrate 2. Catalyst volume 3. Optimum mass flux is set at 2,7 – 3 kg/s/m2 4. Normal pressure drop per bed not higher 3-3,5 bar 5. Set maximum catalyst bed length – 10-12 m 6. Set a maximum catalyst bed exotherm 7. Choose the internals – tray, quench, outlet collector 8. Care should be taken for all shut-down, catalyst unloading and loading 9. Choosing metallurgy as a function of Pressure, Temperature and liquid/gas composition
Case 1 – Reactor Design. Choose main conditions – Pressure, cycle length, type feed, product, flowrate Catalyst volume Optimum mass flux is set at 2,7 – 3 kg/s/m2 Normal pressure drop per bed not higher 3-3,5 bar Set maximum catalyst bed length – 10-12 m Set a maximum catalyst bed exotherm - PowerPoint PPT Presentation
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Assistance Technique Case 1 – Reactor Design
1. Choose main conditions – Pressure, cycle length, type feed, product,
flowrate
2. Catalyst volume
3. Optimum mass flux is set at 2,7 – 3 kg/s/m2
4. Normal pressure drop per bed not higher 3-3,5 bar
5. Set maximum catalyst bed length – 10-12 m
6. Set a maximum catalyst bed exotherm
7. Choose the internals – tray, quench, outlet collector
8. Care should be taken for all shut-down, catalyst unloading and
loading
9. Choosing metallurgy as a function of Pressure, Temperature and
liquid/gas composition
Assistance Technique
Case 2 – Unit Poor Performances
Case 2A - Unit A in France had an apparent activity at 25°C higher than expected
HDS - Evolution of normalised temperature for operating conditions