成果報告書詳細
管理番号20110000000105
タイトル*平成21年度中間年報 グリーン・サステイナブルケミカルプロセス基盤技術開発/規則性ナノ多孔体精密分離膜部材基盤技術の開発 12
公開日2011/8/30
報告書年度2009 - 2009
委託先名株式会社ノリタケカンパニーリミテド
プロジェクト番号P09010
部署名ナノテクノロジー・材料技術開発部
和文要約和文要約等以下本編抜粋:1.研究開発の内容及び成果等 3-2-2-(1) セラミックス多孔質基材の開発 <研究開発の内容> 製膜プロセス及び脱水プロセス条件下で大幅な強度劣化の生じない基材および、目標分離性能を実現する分離膜を担持可能な物理・化学特性を有する基材を開発する。基材の強度・熱衝撃性等の評価は名古屋工業大学にて、基材への製膜および評価は早稲田大学にて共同で実施する。本年度は強度・熱衝撃性評価用のサンプル作製を行い、名古屋工業大学へ提供した。また、目標分離性能を実現する分離膜を担持可能な基材作製の今後の最適化のため、基準となる基材を作製し、早稲田大学及び各大学へ提供した。
英文要約Title: Development of Fundamental Technologies for Green and Sustainable Chemical Processes
Green and sustainable chemistry/fundamental development of ordered-nanoporous membranes for highly-refined separation technology/ 3-2
(FY2009-FY2011) FY2009 Annual Report
3-2-2-(1) Development of porous ceramic substrates
Main objectives are.
・Development of porous ceramic substrates durable under membrane synthesis and dehydration conditions.
・Development of porous ceramic substrates having physical and chemical characteristics suitable for membrane synthesis and performance.
We have prepared samples for durability evaluation, and we have also made three different types of substrate samples (NS-1, NS-2, NA-1) for membrane synthesis.
・NS-1:Symmetrical-type porous α-alumina tube, i.d.=7mm, o.d.=10mm, average pore size=150nm, porosity=35-40%, crush strength=31MPa, nitrogen permeance(room temperature)=1×10-6mol m-2 s-1 Pa-1
・NS-2:Symmetrical-type porous α-alumina tube, i.d.=7mm, o.d.=10mm, average pore size=700nm, porosity=45-50%, crush strength=18MPa, nitrogen permeance(room temperature)=2×10-5mol m-2 s-1 Pa-1
・NA-1:Asymmetrical-type porous α-alumina tube, i.d.=7mm, o.d.=10mm, average pore size=150nm(intermediate substrate layer) and 700nm(substrate), porosity=35-40%(intermediate layer) and 45-50%(substrate), crush strength=18MPa, nitrogen permeance (room temperature) =1×10-5mol m-2 s-1 Pa-1
Moreover we have successfully controlled substrate pore size distribution and porosity by controlling the temperature of heat treatment without any changes in substrate materials. Use of the same substrate material helped to isolate its influence on the properties of the membrane deposited on it and therefore should help to understand the influence of substrate pore size and distribution on membrane growth and performance.
3-2-2-(2) Development of multi-channel type porous ceramic substrate
Compared with usual tube-type substrate, the structure of multi-channel type porous ceramic substrate is complex. Therefore, there is a need to develop proper manufacturing steps for the fabrication of multi-channel type porous ceramic substrate. Kneading-process is one of the important steps in the manufacturing of multi-channel type porous ceramic substrates. We have introduced a new Rheometer to characterize this step. We have recently started investigating the influence of the rheology of kneaded pre-extrusion mixture (the precursor of substrate) on the characteristics of the porous ceramic substrate.
3-2-3-(2) Development of the module of multi-channel type porous ceramic substrate
In the case of multi-channel type porous ceramic substrate, the edges of the substrates need to be sealed, in addition to the outside of substrate. Therefore, we need a sealing material that is durable under membrane synthesis and dehydration conditions.
We have investigated the performance of some glass based materials as sealants. For example it was found that low soda-lime glass containing alumina is a durable sealing material.
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