What is supercritical chemical reaction
High chemical pressure/supercritical chemical reaction refers to a process in which the reactants are in a supercritical state or the reaction is carried out in a supercritical medium.
Reaction medium selection
The medium of the high pressure/supercritical CO2 reaction should be non-corrosive to the device, the critical temperature should be close to the reaction operating temperature, the critical pressure should be low, and the medium with high selectivity and solubility for the reactant components.
Since supercritical fluid has both liquid and gas properties, the solubility of the medium can be changed in a relatively large range through pressure adjustment.
Therefore, the solubility of supercritical fluids is often used in chemical reactions to convert heterogeneous reactions into homogeneous reactions, increase the mass transfer rate, thereby increase the reaction rate and simplify product separation.