CERAMIC SEPARATION MEMBRANE STRUCTURE, AND REPAIR METHOD THEREOF

摘要

There are disclosed a ceramic separation membrane structure in which a zeolite separation membrane formed on a ceramic porous body is repaired, and a repair method thereof. In the ceramic separation membrane structure, a zeolite separation membrane 33 is disposed on a ceramic porous body 9, and defects of the zeolite separation membrane 33 are repaired by zeolite repaired portions 34 containing zeolite of structure different from the structure of zeolite of the zeolite separation membrane 33. The zeolite separation membrane 33 and the zeolite repaired portions 34 are made of a hydrophobic zeolite having a ratio of SiO2/Al2O3=100 or more.

主权项

1. A ceramic separation membrane structure including:
a ceramic porous body; a zeolite separation membrane disposed on the ceramic porous body; and zeolite repaired portions containing zeolite of structure different from a structure of zeolite of the zeolite separation membrane deposited in defect portions which are not covered with the zeolite separation membrane and where the surface of the ceramic porous body is exposed, wherein the zeolite separation membrane and the zeolite repaired portion are made of a hydrophobic zeolite wherein SiO2/Al2O3=100 or more.