What could be the possible causes of coking in a reforming electric heater?
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The electric heater in the reforming unit has experienced coking; could everyone please analyze what might be the reasons?
①The reduced hydrogen has low purity and a high hydrocarbon content. ②The liquid collector does not cut off the liquid in a timely manner, causing the orifice plate to become clogged. ③The membrane separation efficiency is poor. ④.PSA hydrogen purity fluctuations. ⑤During regenerative cooling shutdown, the reverse gas flows upward to the reduction section. ⑥Thyristor failure. ⑦ Small selection for electric heaters. ⑧ The filter element in the collector is not installed or has expired and not returned. ⑨ Internal leakage in the reducing gas and waste hydrogen heat exchanger (specifically for IFP units). ⑩The thermocouple indicates a fault. ⑪Re-contact the chiller to shut down. ⑫Long-term overheating of the electric heater element
Is this a single-element resistive heater?
Only the reduction section heater is likely to clog; the other two are not likely to clog
The summary is excellent; kudos to it. I hope everyone will study hard on *restructuring units*