Solving the problem of hydrogen production from dry gas? ? 5
Thread Content
In hydrogen production, 3.5 MPa steam and desulfurization gas are mixed in a mixer before entering a temperature reducer, and then proceeding to the conversion furnace. What is the function of the temperature reducer? It’s my first time seeing this device, so I’m seeking help from everyone here!
Heard about it for the first time; looking forward to an answer.
Steam is transported at a higher temperature to prevent condensation, while if the device does not require such a high temperature, the temperature is reduced. In our unit, deoxygenated water is added to reduce temperature and pressure.
Control the temperature! If I’m not mistaken, the steam is heated in exchange for heat with the feed gas before being mixed in, right?
Control the temperature and pressure entering the converter
The temperature at the converter inlet has strict requirements
3.5MPa steam is superheated steam; the operating temperature does not need to be this high
Saturated steam at 3.5 MPa has a temperature of around 425 degrees, while superheated steam has a temperature of around 475 degrees; it’s just a few degrees difference, which leads to different names for these states
This post was last edited by dpclove21 on 2016-8-8 at 14:26. The temperature of saturated steam at 3.5 MPa is only 242°C – how can it be 425°C? It mainly serves to reduce temperature, preventing carbon deposition due to excessively high temperatures in the conversion furnace tubes. The injected deoxygenated water does not have a pressure-reducing effect.