消化ガス吸着貯蔵技術の有効性と性能維持特性の基礎的検討
書誌事項
- タイトル別名
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- Fundamental Evaluation of New Effective Adsorption Biogas Storage Technology
説明
Effective utilization of sludge-digestion gas (biogas) could be contributed to promotion of reducing greenhouse gasses and creation of a recycling society. However, the delay in the development of gas storage technology prevents the effective utilization. In this paper a new technology of biogas storage system is introduced, and the capability of the new system is evaluated.<BR>First, we evaluated the adsorbent suitable for this system. High pressure adsorption equilibria of methane and carbon dioxide at 298K up to 6 MPa on various adsorbents were measured, and their adsorbents were evaluated in consideration of net dimensionless density [V/V] for this system. We found that the high packed density activated carbon made from the coconut cell is suitable for this system.<BR>Secondly, we measured and modeling of the biogas storage capacity of activated carbon. Adsorption equilibria of binary mixture of methane and carbon dioxide at 298K and pressures to 1 MPa were also measured with the volumetric-flow desorption method and analyzed using an Ideal Adsorbed Solution Theory (IAST) which was one of the most general multi component adsorption equilibrium theories. The IAST gave the good prediction of adsorption equilibrium of methane and carbon dioxide mixed gases that were primary components of biogas. Therefore, biogas storage capacities are probably predicted by the IAST, and net biogas storage capacities of this technology are 13 times larger and 9 times larger than that of conventional compressed storage at 0.3 MPa and 0.7 MPa respectively.<BR>Finally, influences of impurities in biogas on adsorption performance were evaluated. We conclude that the major cause of decreasing on adsorption performance was moisture in biogas, and the storage capacity was maintainable for a long period of time by removing moisture from biogas.
収録刊行物
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- 環境工学研究論文集
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環境工学研究論文集 40 343-352, 2003
公益社団法人 土木学会
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詳細情報 詳細情報について
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- CRID
- 1390282679088364800
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- NII論文ID
- 130003775822
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- ISSN
- 1884829X
- 13415115
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- 本文言語コード
- ja
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- データソース種別
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- JaLC
- CiNii Articles
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- 抄録ライセンスフラグ
- 使用不可
