Hydrogenation reactor with 316L lining – discussion on cooling and pressure reduction
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For a hydrogenation reactor lined with 316L material, due to specific process requirements, it is necessary to first lower the temperature from 300°C to 50°C, and then reduce the pressure from 7 MPa to 0.0005 MPa. Is such a procedure feasible? Please advise whether this will meet the requirements
In our hydrogenation process, we first reduce the pressure and then lower the temperature to avoid damaging the reactor. Low temperature and high pressure may cause hydrogen embrittlement
I also think it’s feasible to lower the pressure first in theory
Generally, hydrogenation reactor manufacturers specify a minimum pressure rise temperature; below this temperature, the pressure that can be applied to the reactor must not exceed 1/4 of the device’s designed pressure, in order to prevent hydrogen embrittlement and temper embrittlement