▎ 摘　　要

NOVELTY - Preparing composite carbon molecular sieve, comprises (i) mixing zeolite and bituminous coal to obtain raw material mixture; (ii) adding raw material mixture into graphene oxide aqueous solution, and drying; (iii) crushing first intermediate product to 80 meshes, to obtain a second intermediate product; (iv) subjecting second intermediate product to carbonization treatment in presence of inert atmosphere; (v) subjecting third intermediate product to activation treatment, to obtain a fourth intermediate product; and (vi) regulating and processing fourth intermediate product. USE - The method is useful for preparing composite carbon molecular sieve (claimed). ADVANTAGE - The method produces product having pore size of 0.28-0.40 nm. DETAILED DESCRIPTION - Preparing composite carbon molecular sieve, comprises (i) uniformly mixing zeolite and bituminous coal to obtain raw material mixture, where the mass ratio of zeolite and bituminous coal is 10-20:90-80; (ii) adding raw material mixture dropwise into graphene oxide aqueous solution, and drying, to obtain first intermediate product, where the dropwise addition time is 10-20 minutes; (iii) crushing first intermediate product to 80 meshes, to obtain a second intermediate product; (iv) subjecting second intermediate product to carbonization treatment in presence of inert atmosphere, to obtain a third intermediate product; (v) subjecting third intermediate product to activation treatment, to obtain a fourth intermediate product; and (vi) regulating and processing fourth intermediate product.