Tubular reactor
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Those familiar with aldehyde hydrogenation reactors, please advise. What is its structure? Operation? Thank you! !
It is a fixed-bed tubular reactor; copper contacts are used, with the catalyst filled inside the tubes. Heat is applied from outside the tubes using heat transfer oil, and the reaction temperature ranges from 200 to 280°C. This temperature increases over time as the device is used; when it reaches a certain high level, it indicates that the catalyst’s lifespan is nearing its end and needs to be replaced.
I’m not familiar with the aldol hydrogenation reaction, but tubular reactors are generally similar in structure. As mentioned above, a fixed-bed tubular reactor has a structure similar to that of a tubular heat exchanger; catalysts and fillers are placed inside the tubes, while the shell is used for heating or cooling. As operation time increases, the reaction temperature also needs to be raised gradually to maintain the catalyst’s activity. When the temperature reaches its upper limit, it indicates that the catalyst has become inactive and needs to be replaced. Therefore, the reaction temperature is strictly controlled during production in order to extend the catalyst’s lifespan.
Are there diagrams to help us learn*learn*?
One can imagine a shell-and-tube heat exchanger: if the end caps of the heat exchanger are removed and a catalyst is placed inside the tubes, it becomes a tubular reactor; of course, from a design perspective, it becomes much more complex.
One can imagine a shell-and-tube heat exchanger: if the end caps at both ends of the heat exchanger are removed and a catalyst is placed inside the tubes, it becomes a tubular reactor. Of course, from a design perspective, this approach is much more complex. What other uses can there be for the spaces between the tubes in a tubular reactor? I would appreciate it if you could let me know
One can imagine a shell-and-tube heat exchanger: if the end caps of the heat exchanger are removed and a catalyst is placed inside the tubes, it becomes a tubular reactor. Of course, from a design perspective, this approach is much more complex. What other uses can there be for the spaces between the tubes in a tubular reactor? I would appreciate it if you could let me know. The spaces between the tubes aren’t used just for heating or cooling – when a temperature of over 100 degrees is required, steam is used; for temperatures above 200 degrees, heat transfer oil is utilized, or electric heating can also be employed.