CATL 5 |
| Tomohiro Nozaki1, Akinori Hattori1, Shigeru Kado2, and Ken Okazaki3. (1) Department of Mechanical and Control Engineering, Tokyo Institute of Technology, 2-12-1 O-okayama, Meguro-ku, 152-8552 Tokyo, Japan, (2) Department of Applied Chemistry, School of Engineering, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, 113-8656 Tokyo, Japan, (3) Department of Mechanical and Control Engineerign, Tokyo Institute of Technology, 2-12-1 O-okayama, Meguro-ku, 152-8552 Tokyo, Japan |
| The non-thermal, micrometer-scale plasma-catalytic reactor expands capability of manufacturing syngas / hydrogen from natural gas (CH4>90%) without catalyst. Stoichiometric mixture of O2/CH4 (=0.5) was directly processed without dilution gas within the temperature range between 100 .C and 300 .C. Highly reactive non-thermal plasma stimulates chemical conversion processes even at room temperature, whereas perfect oxidation (CH4 -> CO2 and H2O) could be minimized due to low temperature synthesis, leading to energy efficient one-stage partial oxidation. Wide range of O2/CH4 mixtures and reaction temperature can be selected for desired purposes almost independently of chemical and thermal equilibrium. Effect of reactor dimension, O2/CH4 mixture ratio, and plasma temperature on methane conversion process was discussed in detail along with spectroscopic characterization of the novel plasma-catalytic reactor. * This work was supported in part by The Murata Science Foundation. |
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Plasma Technology and Catalysis
8:00 AM-12:00 PM, Monday, March 24, 2003 Convention Center -- Room 342, Oral
Catalysis & Surface Science Secretariat |