Preparation of zeolite membranes in a fluoride containing medium

2017 Fiscal Year Final Research Report

• Project/Area Number: 15H04174
• Research Category: Grant-in-Aid for Scientific Research (B)
• Allocation Type: Single-year Grants
• Section: 一般
• Research Field: Properties in chemical engineering process/Transfer operation/Unit operation
• Research Institution: Yamaguchi University
• Principal Investigator: KITA Hidetoshi 山口大学, 大学院創成科学研究科, 教授(特命) (10177826)
• Co-Investigator(Kenkyū-buntansha): 熊切 泉 山口大学, 大学院創成科学研究科, 准教授 (20618805) ; 田中 一宏 山口大学, 大学院創成科学研究科, 准教授 (30188289)
• Project Period (FY): 2015-04-01 – 2018-03-31
• Keywords: ゼオライト膜 / 水熱合成 / 気体分離 / 浸透気化分離

Outline of Final Research Achievements

In this study, we prepared zeolite membranes such as MFI(ZSM-5), MOR, RHO and AEI using F-containing gels by a single hydrothermal synthesis. The role and location of F ion were also clarified. The membrane prepared from F-containing gel had a high flux and a high separation factor for a gas separation of CO2/CH4 or for a water/ethanol mixture. Especially the membranes showed good acidic durability and dehydration performance. The membrane prepared from the fluoride-containing precursor gel had a better acid stability and reproducibility than the membrane prepared from non fluoride-containing precursor gel. Long-term acid-stable zeolite membranes for the dehydration process will certainly advance the acceptance of zeolite membranes in industrial processes.

Free Research Field

化学工学、膜分離