| 摘要 |
PROBLEM TO BE SOLVED: To provide a porous support-zeolite membrane complex having both of practically-sufficient throughput and separation performance in separation/concentration by an inorganic material separation membrane and to provide a separation/concentration method using the zeolite membrane complex.SOLUTION: The porous support-zeolite membrane complex is obtained by forming a zeolite membrane on a porous support and characterized in that the average thickness of the porous support is 0.1-7 mm and an index expressing a pore distribution of the support is ≤40, wherein the index is obtained by measuring the pore distribution by a mercury penetration method and calculated by using an expression (1): (D-D)/D(in the expression, Dis the pore diameter when the total amount of the pore volume integrated from large pores is 5% of the total pore volume, Dis the pore diameter when the total amount of the pore volume integrated from large pores is 50% of the total pore volume, and Dis the pore diameter when the total amount of the pore volume integrated from large pores is 95% of the total pore volume). |
