专利检索 ap:("NANJING UNIVERSITY OF TECHNOLOGY") AND inv:"Li Peng" 第 1 页

1.

发明授权
Method of preparing hierarchical porous channel molecular sieve membrane and application thereof 有权

公开(公告)号：US11554348B2

公开(公告)日：2023-01-17

申请号：US16348819

申请日：2017-06-09

申请人： NANJING UNIVERSITY OF TECHNOLOGY

发明人： Xuehong Gu , Xun Yao , Li Peng

IPC分类号： B01D67/00 , B01D71/02 , C01B39/24 , C01B39/26 , C01B39/40 , C01B39/54 , B01D69/12 , B01D69/08 , C02F1/44 , B01D69/02

摘要： The invention relates to a method for preparing a hierarchical porous zeolite membrane and an application thereof, comprising the following steps: a mesoporous structure-directing agent is added to limit the growth of zeolite crystals, and self-assembled in the crystallization process to generate a mesoporous structure. Based on a seed crystal induced secondary nucleation mechanism, this method can realize one-step hydrothermal synthesis of hierarchical porous zeolite membrane with the advantages of mild and controllable synthesis conditions, simple process, good repeatability, reduced energy consumption and cost savings. The hierarchical porous zeolite membrane prepared by the method has good cut-off performance, and the cut-off molecular weight is adjustable between 200 to 500,000 Da.