What are the specific differences between reaction vessels and towers?

Reactor vessels differ significantly from towers: Reactor vessels are widely used in the petroleum, chemical, rubber, pesticide, dye, pharmaceutical, and food industries as pressure vessels for carrying out processes such as vulcanization, nitration, hydrogenation, hydrocarbonation, polymerization, and condensation; examples include reactors, reaction vessels, decomposition kettles, and polymerization reactors； A tower is a container with a specific shape (with a mostly circular cross-section), a certain volume, and various internal and external attachments. It is used to bring gases into close contact with liquids, gases with solids, liquids with each other, or liquids with solids, thereby facilitating their interaction and enabling heat transfer and mass transfer processes in the chemical industry.

The internal components of reaction vessels and towers differ significantly

Reactor vessels are classified based on the function of the container, whereas tower vessels are classified based on the shape of the container; the classification methods are different； Therefore, the reaction vessel can also be of the tower type, known as a tower-type reaction vessel ； Of course, towers can also be used as reactors; they are generally referred to as synthesis towers, hehe

In my opinion, from the perspective of reactions, reaction towers are generally used for two-phase reactions, while reaction vessels can be used for three-phase reactions. In terms of internal components, reaction vessels usually have mixing devices, whereas reaction towers do not. In terms of appearance, for reactions with the same capacity, reaction towers generally have a larger volume than reaction vessels. Regarding reaction pressure, reaction towers experience a greater pressure drop compared to reaction vessels; reaction vessels do not face this issue. Reaction towers always experience some pressure drop as a result of the reaction taking place from bottom to top or from top to bottom. As for reaction temperature, it is easier to control the temperature in reaction vessels, as the mixing devices help maintain uniform temperatures. In contrast, for exothermic reactions, reaction towers tend to experience temperature spikes due to their poor heat dissipation capabilities. From the standpoint of application prospects, reaction vessels are superior to reaction towers, but because of the complexity of their kinetics, most chemical processes currently use tower-type reactors. I’m not sure if what I said is correct; it’s just for reference. Thank you

The reaction kettle consists of a kettle body, a kettle cover, a jacket, an agitator, a transmission device, a shaft sealing device, supports, etc. The mixing types generally include anchor type, paddle type, turbine type, propeller type, or frame type. When the height-to-diameter ratio of the mixing device is large, multiple layers of mixing blades can be used, or options can be selected according to the user’s requirements. A jacket can be installed outside the kettle wall, or heat exchange surfaces can be provided inside the vessel; heat exchange can also be achieved through external circulation. Heating methods include electric heating, hot water heating, heat transfer oil circulation heating, far-infrared heating, and external (internal) coil heating, while cooling methods are jacket cooling and coil cooling inside the tank; the type of stirring blades is also a factor to consider. Support seats include supported types or lug types, etc. A gear reducer is recommended when the rotation speed exceeds 160 revolutions per minute. The number of openings, their specifications, or other requirements can be designed and manufactured according to the user’s needs.

The most straightforward way to distinguish between reaction vessels and towers is by their external structure: reaction vessels are usually short and stout in appearance, while towers are generally tall and slender.

Broadly speaking, a reactor, as the name implies, is a vessel used for carrying out chemical reactions; while a tower is primarily a vessel used for mass and heat transfer! However, there are also special cases; for example, a kettle can also be used as a container for storing materials, usually gases. Column reactors are also used for chemical reactions, such as in synthesis columns; however, the range of pressure variations involved in such columns is usually very small, not as large as that in batch reactors! My knowledge is limited; I hope experts can provide guidance!