Hydrogenation reactor temperature issues
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The last edit to this post was made by cainiu on 2009-8-10 at 23:13. The three temperature measurement points installed at the top of the reactor bed show that the temperature is lower in the middle and higher on the sides. No cold hydrogen specified. I would appreciate it if experts could help analyze the reasons behind this phenomenon
The formation of this point with a low intermediate temperature is likely due to coking, or it could be a problem with the thermocouple; have the instrument calibrated. If the readings are inaccurate, then coking or blockage can be inferred as the cause.
1. It is very likely caused by drift. 2. Catalyst deactivation in the middle section. 3. There is a problem with the thermocouple.
This is normal. If it’s a new device, it might be caused by bias current or a problem with the thermocouple
Deviation in flow, coking, uneven catalyst activity, and inaccurate thermocouples can all cause this phenomenon
Uneven horizontal alignment of the distribution disc and blockages can also cause flow deviation.
The problem with the thermocouple could be coking in the middle section, or it might be that the activity in that area has decreased
1. There may be a deviation in the thermocouple. 2. The pressure drop across the bed is uneven, leading to uneven material flow. 3. The catalyst’s activity may have decreased
Is it that when such a situation occurs, it’s usually a problem in this area? I just started working and have no experience
Most are caused by deflection, and there are various reasons for deflection, such as blockage in the middle or leaks on both sides.
It is very likely that the catalyst was not properly installed during loading, resulting in channeling