-
- SAKURAI Tsutomu
- Department of Chemistry and Fuel Research, Japan Atomic Energy Research Institute Radiation Application Development Association,
-
- YAGI Tomonori
- Department of Chemistry and Fuel Research, Japan Atomic Energy Research Institute
-
- TAKAHASHI Akira
- Department of Chemistry and Fuel Research, Japan Atomic Energy Research Institute
書誌事項
- タイトル別名
-
- Method of Decomposing Carbon Dioxide fo
この論文をさがす
説明
To consecutively decompose 14CO2 into carbon (14C) through its reaction with H2, an apparatus using microwave discharge and its conditioning were investigated. The reaction produces CO as an intermediate, and proceeds in the two steps of (1) "CO2+H2→CO+H2O" and (2) "CO+H2+Cn→Cn+1+H2O", where Cn denotes the carbon already deposited on the wall of the discharge tube. Preliminary dispersion of carbon to the wall of the discharge tube by sputtering of a graphite particle was effective to promote the reaction. Two silica discharge tubes (6mm O.D., 4mm I.D., and 150mm length each) were connected in series to proceed the former reaction in the first discharge tube and the latter one in the second one. When a 1:3 mixture of CO2 and H2 (total pressure 0.67kPa) was passed through the discharge tubes at a linear gas velocity of approximately 30mm/s and discharged for 60h under microwave of 30-40W supplied from two 2, 450 MHz power generators (200W each), more than 90% of CO2 was converted into CO in the 1st tube and about 23% of the CO was then decomposed into carbon in the 2nd tube. However, about 50% of the CO escaped from the tube without being decomposed, and about 0.5% and 1% of the carbon fed were hydrogenated into CH4 and C2H2, respectively. The rest about 25% which was not confirmed was probably evacuated from the 2nd tube as microparticles of carbon. To completely decompose CO2 into carbon, additional discharge tubes are necessary downstream of the 2nd tube.
収録刊行物
-
- Journal of Nuclear Science and Technology(日本原子力学会英文論文誌)
-
Journal of Nuclear Science and Technology(日本原子力学会英文論文誌) 35 (1), 76-81, 1998
一般社団法人 日本原子力学会
- Tweet
キーワード
詳細情報 詳細情報について
-
- CRID
- 1390282679071117184
-
- NII論文ID
- 10002078871
-
- NII書誌ID
- AA00703720
-
- COI
- 1:CAS:528:DyaK1cXhs1Cls7k%3D
-
- ISSN
- 18811248
- 00223131
-
- NDL書誌ID
- 4384443
-
- 本文言語コード
- en
-
- データソース種別
-
- JaLC
- NDL
- Crossref
- CiNii Articles
-
- 抄録ライセンスフラグ
- 使用不可