Development of highly permeable CO2 separation membranes with controlled amorphous silica network structure

2014 Fiscal Year Final Research Report

• Project/Area Number: 24560924
• Research Category: Grant-in-Aid for Scientific Research (C)
• Allocation Type: Multi-year Fund
• Section: 一般
• Research Field: Properties in chemical engineering process/Transfer operation/Unit operation
• Research Institution: Hiroshima University
• Principal Investigator: KANEZASHI MASAKOTO 広島大学, 工学(系)研究科(研究院), 助教 (10467764)
• Co-Investigator(Renkei-kenkyūsha): GUNJI Takahiro 東京理科大学, 理工学部工業化学科, 教授 (20256663)
• Project Period (FY): 2012-04-01 – 2015-03-31
• Keywords: ゾル－ゲル法 / ガス分離 / アモルファスシリカ / 細孔径制御 / 分子ふるい

Outline of Final Research Achievements

In this project, sol-gel derived amorphous silica membranes for highly permeable CO2 separation were developed via controlling the Si precursors, such as organosilica and cyclic siloxane alkoxides. It was found that both method was quite effective to control the silica network size, and polyhedral oligomeric silsesquioxane (POSS) membranes fabricated at 550oC showed high CO2 permeance with CO2/CH4 selectivity higher than 100 at 100oC.

Free Research Field

化学工学，膜分離工学