本发明涉及一种搅拌式气液反应器，包括：罐体、进气装置、旋转膜气体分布器和集气装置，旋转膜气体分布器包括空心轴和下部的曝气叶轮，进气装置在罐体之外连通空心轴；曝气叶轮为中空的叶片，表面设置有微孔，内部连通空心轴；集气装置设置于曝气叶轮上方，包括连接于空心轴的自吸叶轮和罩于自吸叶轮外的导气罩，导气罩的导气管与空心轴之间形成集气通道。本发明使得气体通过曝气叶轮形成微气泡，同时未完全反应的气体通过集气装置重新回到溶液中并形成微气泡，提高了气液接触的比表面积和气体的利用率，强化了气液反应的同时气体的二次利用可以节约气体原料，减少碳排放，适用于石油、化工、生物化工、医药等领域的气液反应。

The present invention relates to a stirred gas-liquid reactor, comprising a tank body, an inlet device, a rotating membrane gas distributor, and a gas gathering device. The rotating membrane gas distributor comprises a hollow shaft and a lower aeration impeller, and the inlet device is connected to the hollow shaft outside the tank body; The aeration impeller is a hollow blade with micropores on the surface and connected to a hollow shaft internally; The gas collection device is arranged above the aeration impeller, including a self suction impeller connected to the hollow shaft and an air guide cover covered outside the self suction impeller. The air guide pipe of the air guide cover forms a gas collection channel between the air guide pipe and the hollow shaft. The present invention allows gas to form microbubbles through the aeration impeller, while the partially reacted gas returns to the solution through the gas collection device and forms microbubbles, improving the specific surface area of gas-liquid contact and gas utilization rate, strengthening the gas-liquid reaction, and the secondary utilization of gas can save gas raw materials and reduce carbon emissions. It is suitable for gas-liquid reactions in fields such as petroleum, chemical, biochemical, pharmaceutical, etc.