ilmanostoreaktori

An ilmanostoreaktori, a Finnish term translating to "air-lifting reactor" or "air-lift reactor," is a type of chemical reactor where the circulation of reactants is achieved by the introduction of a gas, typically air, into the reactor. This gas is sparged into the bottom of an internal or external riser, creating a two-phase mixture of liquid and gas. The lower density of the gas-liquid mixture in the riser compared to the dense liquid in the downcomer causes a natural circulation.

The primary function of an ilmanostoreaktori is to enhance mass transfer and mixing within the reactor. The rising bubbles provide a significant surface area for gas-liquid contact, which is beneficial for reactions involving gaseous reactants or products. The continuous circulation also ensures that all parts of the liquid phase are exposed to the gas and that solid catalysts, if present, remain suspended.

Ilmanostoreaktorit are widely used in various industrial processes, particularly in the biochemical and chemical industries. Applications include fermentation processes, wastewater treatment, wastewater purification, and chemical synthesis where efficient gas-liquid or liquid-liquid mixing is crucial. Their simple design, absence of moving parts, and low energy consumption for circulation make them an attractive option for many industrial operations. They are known for their reliability and ease of maintenance.