Continuous flow reactors are systems used in chemical processes where reactants are continuously fed into the reactor and products are continuously removed. This setup allows for a steady-state operation, which can enhance efficiency and control over reaction conditions compared to batch reactors. These reactors are commonly used in industries such as pharmaceuticals and petrochemicals, where consistent product quality and high throughput are essential. By maintaining a constant flow, continuous flow reactors can improve reaction rates and reduce the risk of unwanted side reactions, making them a valuable tool in modern chemical engineering.