天然ガスからのCO_2回収のための水素分離型タービン発電システムの提案 : セラミック多孔質膜による膜改質器の検討(FP1 高温・高効率発電・エネルギー貯蔵技術)

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In this paper, the author proposes a new concept for power generation systems for CO_2 recovery, the Hydrogen Decomposed Turbine (HYDET). The main features offered by this concept are the reforming of natural gas and the decomposition of hydrogen. Natural gas is reformed, while at the same time hydrogen is decomposed from the reforming gas through the use of a hydrogen separation membrane. The reformer equipped with the hydrogen separation membrane is called a membrane reformer. The residual gas, which contains methane and CO, is subjected to combustion in an afterburner using pure oxygen, with high-concentration CO_2 being exhausted directly for recovery. The system uses high-temperature inorganic hydrogen separation membranes, such as a multi-layer, porous ceramic membrane. Using CO_2 reforming, HYDET performance will be 49.5%HHV at the generator-end, 38.0% HHV at the sending end CO_2 separation ratio would be 96%. However, before this proposed system is put to practical use, a membrane reformer with a high-temperature inorganic hydrogen separation membrane must be developed.
一般社団法人日本機械学会の論文
2004-06-22