成果報告書詳細
管理番号20110000001153
タイトル*平成22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(4)
公開日2011/8/30
報告書年度2010 - 2010
委託先名国立大学法人名古屋工業大学
プロジェクト番号P09010
部署名電子・材料・ナノテクノロジー部
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 名古屋工業大学で担当する上記2項目のうち、本年度は、開発項目3-2-2「分離膜用セラミックス多孔質基材の開発」における、「(1)セラミックス多孔質基材の開発」をH21年度から継続して行った。また、当初の実施計画に従って開発項目3-2-3「モジュール化技術の開発」は今年度より着手した。 「(1)セラミックス多孔質基材の開発」においては、膜透過抵抗を可能な限り低減下するための多孔質構造制御と、支持体としての熱・機械的特性の両立を図ることが極めて重要となる。
英文要約At Nagoya Institute of Technology, in the Fiscal Year of 2010, research works have been focused mainly on the topic, 3-2-2 “Development of porous support for ordered-nanoporous membranes”. Macoroporous structures, thermal and mechanical properties have been evaluated for the series of tubular porous alumina support developed by the Noritake Co. Ltd., Japan. The pore size distribution of the porous support samples was evaluated by the mercury intrusion porosimetery, and the porous morphology at submicron/micrometer scale level was observed and analyzed by the scanning electron microscopy (SEM). Then, the effect of macroporous structure on thermo-mechanical properties has been investigated systematically. The porosities evaluated in this study were in the rage of 23 to 49 %, while the average pore diameters were 0.17 and 0.7 micrometers. The fracture strength was not changed with temperature, but decreased with the porosity. The fracture toughness, Young’s modulus and thermal conductivity were also decreased with porosity. However, it should be noted that the sample having the largest average pore diameter of 0.7 micrometers exhibited higher strength, Young’s modulus and thermal conductivity when compared with other samples in the porosity rage above 40 %. The evaluation of the thermal shock resistance also resulted in the same tendency. One possible reason was the degree of the neck growth between the alumina grains evaluated by the SEM observation. The sample with the largest average pore diameter exhibited the apparent neck growth, which could lead to enhance the mechanical properties such as strength, the thermal conductivity and the resulting thermal shock resistance. Durability under chemically hazardous condition in the strong alkaline solution during zeolite membrane synthesis was evaluated for the porous alumina support, and it was experimentally clarified that the degradation in the strength during the membrane synthesis was limited to be approximately 17%. The evaluation method of the mechanical strength was also examined for the alumina monolith support. Due to the existence of the multi-channel pores, the strength was evaluated using the FEM analysis, and as an initial result, the suitable thickness of the sample specimen for the compression strength test was found to be 5 mm. Further study of the strength evaluation method is under progress. 3-2-3 “Development of membrane module fabrication technologies”, several evaluation methods for the seal materials of the membrane module was briefly studied as a collaboration research work with the Noritake Co. Ltd., Japan. This research topic will be continuously studied in the next Fiscal Year of 2011.
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