Exergy, CO2 and Economical Analyses of the Hydrogen Production Using Waste Heat from Molten Slag in the Steel Industry
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- Purwanto Hadi
- Center for Advanced Research of Energy Conversion Materials, Hokkaido University
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- Maruoka Nobuhiro
- Graduate School of Engineering, Hokkaido University
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- Akiyama Tomohiro
- Center for Advanced Research of Energy Conversion Materials, Hokkaido University
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A feasibility study of the hydrogen production from high temperature waste heat in the steel industry is carried out from the viewpoints of thermodynamics and economics. The waste heat of molten slag is chemically recovered by endothermic methane-steam reforming. To recover the sensible/latent heat of molten slag directly, it is granulated by a spinning disk atomizer and is cooled by a mixture of steam and methane. In this study, exergy analysis of the proposed system was conducted on the basis of the total unrecovered waste heat. A simple heat and material balance model was employed to evaluate the possibility of Japanese steelworks as a hydrogen station by calculating exergy loss and cost benefit. The results show that the proposed heat recovery system for the production of hydrogen has a less exergy loss of only 12% as compared to the unrecovered system. It also gives a cost benefit totaled US$ 277 million based on the annual steel production of 102 million tons. The results also offer a possibility for hydrogen production with high cost performance by utilizing waste heat from high temperature industries.
収録刊行物
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- JOURNAL OF CHEMICAL ENGINEERING OF JAPAN
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JOURNAL OF CHEMICAL ENGINEERING OF JAPAN 39 (5), 531-536, 2006
公益社団法人 化学工学会
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詳細情報 詳細情報について
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- CRID
- 1390001204570182528
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- NII論文ID
- 130000019200
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- NII書誌ID
- AA00709658
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- ISSN
- 18811299
- 00219592
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- NDL書誌ID
- 7914082
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- 本文言語コード
- en
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- データソース種別
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- JaLC
- NDL
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- CiNii Articles
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- 抄録ライセンスフラグ
- 使用不可