S082015 二酸化炭素+臭化テトラブチルアンモニウム+水系におけるセミクラスレートハイドレートの相平衡条件測定,及び結晶観察([S082]高効率火力発電およびCCS技術)

• 小堀 貴之

  慶應義塾大学大学院理工学研究科開放環境科学専攻

• 室町 実大

  慶應義塾大学大学院理工学研究科開放環境科学専攻:(現)産業技術総合研究所メタンバイトレート研究センター

• 大村 亮

  慶應義塾大学理工学部機械工学科

書誌事項

タイトル別名

• S082015 Phase Equilibrium and Crystal Observation of Semiclathrate Hydrate Formed in System of Carbon Dioxide + Tetra-n-butylammonium Bromide + Water

抄録

Phase equilibrium conditions of semiclathrate hydrate incorporating tetra-w-butylammonium bromide, hereafter TBAB, and CO_2 were experimentally measured. Several previous studies on CO_2 separation technology using semiclathrate hydrates have been carried out and they reported the possibility of applications in industries such as steel-making and power plants. To contribute this technology, we examined thermodynamic properties of TBAB + CO_2 hydrates. Semiclathrate hydrates have a property that the dissociation temperature varies depending on composition of the aqueous solution of ionic salts such as TBAB. The dissociation temperatures of TBAB + CO2 hydrates were measured in the range of mass fraction of TBAB (0.05, 0.10, 0.15, 0.20, 0.25, and 0.30) under the C02 pressure maintained at 0.3 MPa. The measurement uncertainties were ±0.05 K for temperature, ±3.2 kPa for pressure and ±5.0.10^<-4> for mass fraction. Experimental results show that all of the dissociation temperatures of TBAB + CO_2 hydrates are higher than those of TBAB hydrates formed without CO_2.

収録刊行物

• 年次大会

  年次大会 2013 (0), _S082015-1-_S082015-3, 2013

  一般社団法人 日本機械学会

キーワード

• Hydrate
• Phase equilibrium
• Tetra-n-butylammonium bromide
• Carbon capture and storage
• Thermal property
• Phase change
• Thermal equilibrium

詳細情報

• CRID: 1390001205840143744
• NII論文ID: 110009934101
• DOI: 10.1299/jsmemecj.2013._s082015-1
• ISSN: 24242667
• Web Site: https://www.jstage.jst.go.jp/article/jsmemecj/2013/0/2013__S082015-1/_pdf
• 本文言語コード: ja
• データソース種別:
  • JaLC
  • Crossref
  • CiNii Articles
• 抄録ライセンスフラグ: 使用不可