Application Areas and Characteristics of Hydrogenation Reactors

　　A hydrogenation reactor is a stirred tank reactor used for gas-liquid reactions. Under mechanical stirring, hydrogen gas is introduced into the liquid phase in the form of bubbles, where it diffuses, convects, and reacts within the liquid layer.

　　Hydrogenation reactors are primarily used in four fields, including the chemical industry:

　　(1) Liquid-phase reaction processes; (2) Gas scrubbing and purification; (3) Production of pure products; (4) Biological systems.

　　The core component of all the processes mentioned above is the hydrogenation reactor used to facilitate the aforementioned reactions and absorption.

　　The commonly used impellers in stirred tanks are typically six-bladed flat-blade turbines or disc turbines, with an air intake pipe positioned just below the impeller. This type of impeller is what we usually refer to as a self-suction agitator. Such an impeller can generate intense turbulence as the incoming hydrogen gas is subjected to vigorous mixing, rapidly breaking up gas bubbles and accelerating mass transfer between the two phases as well as the overall reaction process within the reactor. The diameter-to-tank-diameter ratio of this impeller is generally around 0.33. It is particularly suitable for applications involving significant heat effects and those requiring higher gas holdup or liquid retention rates. It can also be applied to gas-liquid-solid reaction systems where solid particles serve as suspended catalysts.