Zeolite membrane composite, method for producing zeolite membrane composite and hydrothermal synthesis apparatus

摘要

Problem to be solved: to provide a long zeolite membrane composite having a zeolite film having a small defect.The zeolite membrane composite 1 is a long member having a length of 50 cm or longer and has a support 11 having at least one through hole 111 extending in the longitudinal direction, and an inner peripheral surface of the through hole of the support or an outer peripheral surface of the support A zeolite film 12 is provided between one end of the support in the longitudinal direction and the other end.Among constituent elements of zeolite membraneThe most constituent element except oxygen is the main element.Three parts of the support in three equal partsWhen the concentration of the main element of the zeolite membrane was measuredThe concentration of the principal element gradually decreases from one end side toward the other end side.For the concentration of the main element at one end sideThe ratio of the concentration of the main element at the other end portion is 0.90 or more.This provides a long zeolite membrane composite having a zeolite membrane with little defects.Diagram