Catalyst including molecular sieve having topological pore structure, preparation method therefor and use thereof
AssigneesChina Petroleum & Chemical Corporation, Shanghai Research Institute of Petrochemical Technology, Sinopec
InventorsChang Liu, Yangdong Wang, Zaiku Xie, Su Liu, Haibo Zhou, Junjie Su, Wenqian Jiao, Lin Zhang
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Abstract
A catalyst contains a metal oxide, and a molecular sieve, in a crystal form, having a topological pore structure. The metal oxide is centrally distributed on the surface of the molecular sieve. Grains of the molecular sieve are exposed to at least three families of crystal planes. The family of crystal plane with the largest pore size in topology is occupied by the metal oxide by no more than 30%, preferably no more than 20%, or no more than 10%.
Claims17
A catalyst comprising a metal oxide and a molecular sieve having a topological pore structure in a crystal form, the metal oxide being concentrated on the surface of the molecular sieve , wherein the crystal grains of the molecular sieve expose at least three families of crystal planes, and no more than 30% of the meta oxide is distributed on the family of crystal plane having relatively the largest channel size in topology among the three families of crystal planes.
Dependencies are inferred from the claim text.