成果報告書詳細
管理番号20120000000362
タイトル*平成23年度中間年報 水素製造・輸送・貯蔵システム等技術開発 水素製造機器要素技術に関する研究開発 水素分離型リフォーマーの高耐久化・低コスト化研究開発 (2)
公開日2013/3/20
報告書年度2011 - 2011
委託先名日本特殊陶業株式会社
プロジェクト番号P08003
部署名新エネルギー部
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
(2)触媒一体化モジュールの研究開発
触媒一体化モジュールの研究開発において、長時間耐久性試験に供する為のモジュールを製作する。
英文要約Title : Development of technologies for Hydrogen Production, Delivery and Storage Systems. Development of Elemental Technologies for Hydrogen Production Components. Research and Development for Increase of Durability and Cost Reduction of Membrane Reformer (FY2008-FY2012) FY2011 Annual Report (2)
Tubular type advanced MOC (Membrane On Catalyst) modules were continued to develop and were fabricated for the duration test of mono module or small-scale reformer system. The size of the MOC modules were 10mm in outside diameter and 300mm in length. The advanced MOC module failed for 1681 hours on the mono module duration test when the battery trouble suddenly occurred to stop the evaluation equipment. The research for the failed MOC revealed the continuous cracks between the porous ceramic support and the hydrogen permeation membrane. The reasons why the cracks occurred are the oxidation of the catalyst Ni, in the porous ceramic support and/or the carbon formation by the temporary Steam/Carbon ratio reduction. Therefore, not only shut down sequence but also start up sequence of the operating program of the test apparatus were modified as the measures for these accidents. After the measures, the durability of advanced MOC increased up to over 3500 hours, about two times before. But it is clear that the product hydrogen purity is slightly decreasing. The purity reduction is probably related to the Kirkendall voids with the iron-contamination from the stainless steel parts outside of MOC module. The stainless parts were already done with a certain kind of surface treatment, but the iron-contamination could not be perfectly controlled. We tried to develop a new advanced MOC module, which has a protect layer against the iron-contamination.
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