Hydrogenation reactor
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What is an appropriate temperature control for the hydrogenation reactor?
What to do if the bed temperature in the hydrogenation reactor cannot reach the specified value?
The inlet temperature of the hydrogenation reactor is generally controlled at around 290°C, with a temperature rise in the bed layer of approximately 30–50°C. As long as the air distribution in the sulfur production furnace is properly controlled and the hydrogen content is regulated, it is easy to control the bed temperature in the exhaust gas hydrogenation reactor.
The temperature of the hydrogenation reactor is controlled by the upstream online combustion furnace. The temperature control should be determined by the type of catalyst.
For ordinary catalysts, the inlet temperature should be maintained at 280°C–300°C. However, if a low-temperature catalyst is used, the inlet temperature can be maintained at 220°C.
Yes! This still needs to be determined based on the type of catalyst!
The temperature of the hydrogenation reactor is determined based on the type of catalyst. Currently, iron-molybdenum catalysts are commonly used for hydrogenation, though cobalt-molybdenum catalysts are also employed. The temperature at which hot spots occur with iron-molybdenum catalysts is kept between 350 and 450 degrees. At the beginning of operation, this temperature should be lower, as the catalyst is more active at that stage; however, as the catalyst’s activity declines, the temperature of hot spots gradually increases. The specific temperature to be controlled still needs to be determined based on the actual production conditions.
This is the first time I’ve heard about the concept of a critical temperature for cobalt-molybdenum catalysts; I hope someone can explain it more clearly.
Controlling the temperature of a hydrogenation reactor depends on the process and the type of catalyst used! As mentioned upstairs, there is control over the combustion of the online furnace, but our device is heated by combustion exhaust gases, so it cannot be generalized!
The temperature ranges from 250 to 320, varying depending on the raw materials and the duration of use of the catalyst