成果報告書詳細
管理番号20100000001926
タイトル*平成21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
公開日2011/6/29
報告書年度2009 - 2009
委託先名東京瓦斯株式会社
プロジェクト番号P08003
部署名燃料電池・水素技術開発部
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 (1)水素分離型リフォーマーシステムの耐久性向上の研究開発 (1)水素分離膜の耐久性・信頼性の検証試験 (a)40Nm3/h機の運転試験による耐久性の検証 2005年から2007年まで実施した「水素安全利用等基盤技術開発事業 水素インフラに関する研究開発 高効率水素製造メンブレン技術の開発」(以下、「前事業」)にて水素製造効率81.4%を達成した40Nm3/h級水素分離型リフォーマーシステム(図1)の運転試験を継続し、水素分離膜モジュール及びシステムの耐久性、及び長期連続運転よるシステムの運転安定性を検証し、課題抽出を行った。
英文要約Title : Development of technologies for hydrogen production, delivery and storage systems/ Development of component technologies for hydrogen production/ Research and development for increase of durability and cost reduction of membrane reformer (FY2008 ~ FY2010) FY2009 Annual Report
For the duration test, tubular type MOC (Membrane On Catalyst) modules were fabricated. The size of MOC modules were 10mm in outside diameter and 100 or 300mm in length. MOC modules succeeded in achieving fundamental durable properties at the previous project. Grain growth of the hydrogen permeation membrane was observed after the long-term hydrogen permeation test with MOC at 550 degree C. However apparent degradation of membrane by the grain growth was not revealed. Long-term reforming test at 550 degree C showed that the causes of leakage of MOC were some pin-holes which were formed by reaction between palladium and metal like particulates on the membrane and the degradation of the joint connecting a support to a metal pipe. For the latter, new type of the connecting part was developed and showed no leakage over 500 hours in the endurance test. Durability of nickel catalyst was studied. It was influenced by the composition ratio of nickel : 8YSZ in the support tube. High ratio of nickel resulted in the grain growth of nickel in hydrogen gas at 600 degree C and the reforming performance deteriorated. Granulation for press-molding of the support tube and the pressing condition were investigated very carefully. We could make the green body of support tube by press-molding at last. On the other side, plating process was modified by introducing the plating apparatus and so on. Defects on the membrane formed in the plating process were succeeded in decrease.
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