Explanation

It refers to the membrane separation materials used to fix the catalyst inside or on the surface of the membrane separation materials as the reaction site. It has both reaction and separation functions, such as biochemical reactor and catalytic chemical reactor made of the membrane separation materials. There are two types of membrane reactor: one is the circulating reactor, which is a semi closed loop system composed of a pump and membrane module. After the substrate and a certain concentration of catalyst react in the reactor, they are continuously pumped into the membrane module to separate the reaction product from the catalyst. The catalyst returns to the reactor and continues the catalytic reaction. Another type is a fixed reactor, where the catalyst is fixed on one side of the membrane and comes into contact with the fixed catalyst when the feed liquid permeates the membrane and is catalyzed. Generate reaction products, which continue to pass through the membrane and be collected. The selection of membrane separation materials is determined by the nature of catalyst, reactants and products. It can be an inorganic membrane or a tnacromolecular film. The pore diameter of the membrane should be such that the reactants cannot pass through, and the products can easily pass through. The membrane reactor can make the reactants subject to catalysis, generate reactions, and enable the products to be separated continuously, so it has a high conversion rate and continuous production capacity, and can produce various chemical products under normal temperature and pressure, Especially biological products that are difficult to produce using classical methods, such as antibiotics, amino acids, interferon, etc., have high industrial value.

Classification