Catalytic steam
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Recently, our plant intends to redirect the backpressure steam to the reforming and regeneration system; however, fluctuations in low-pressure steam cause variations in the pressure difference. Is there any difference between the steam produced by our own waste heat boilers and supplied through pipelines to the regenerative system, and steam that is used directly under backpressure?
I’m not aware of the specifics of your process, but I think it would be best to combine the backpressure steam with the system steam before sending it to the reverse reactor. This way, there will be a sufficient supply of steam for the reaction process; using only backpressure steam poses limitations, as the amount of steam isn’t stable, and a shutdown of the turbine can lead to a disruption in the steam supply for the reaction process.
Is the temperature of the steam coming out of the turbine high?
Both the backpressure steam and the steam temperature in the pipeline network can be adjusted; they’re almost the same, with the difference being the pressure levels. The steam outlet pressure of the turbines in our plant is generally between 1.0–1.1 Mpa, while the pressure in the low-pressure piping system is between 0.8–0.85 Mpa. If backpressure steam is used, adjusting the turbine’s speed or shutting it down will affect the use of the regenerative steam.
The larger the steam system, the more stable the pressure, and the less impact it has on the reactor and the turbine. So why aren’t they used together?
It is best to use them together; this way, any issues with the turbine will not affect the steam supplied to the regenerator