catalysts;  Alkylation;  supercritical;  isobutane;  Butene

The research status of the alkylation reaction between isobutane and butene is expounded, the main characteristics and advantages and disadvantages of some solid catalysts and liquid catalysts are discussed, the development status of the alkylation reaction between isobutane and butene under supercritical conditions is introduced, and the development prospect of the alkylation reaction between isobutane and butene under supercritical conditions is predicted. The results show that the large-pore molecular sieve with less B acid, more L acid and large specific surface area is expected to be an ideal catalyst for supercritical alkylation.