14,806 research outputs found
Jiao hui xin bao.
No full textOn vol. 10 A: With editor's presentation inscription on final page.Also available in photocopy by Hua wen shu chü, Taipei, 1968. in series of Chʻing mo min chʻu pao kʻan tsʻung pien chih 3.Superseded by Wan kuo kung pao, 1874-1907.Ed. by Young John Allen.Mode of access: Internet.Adrian A. Bennett. Research guide to the Chiao hui hsin pao (The church news)
Catalytic combustion of methane with ozone using Pd-exchanged zeolite X: Experimental investigation and kinetics model
No full textThe authors experimentally investigated the catalytic combustion of methane on a 3-wt%-Pd-ion-exchanged zeolite 13X catalyst under various reaction temperatures, ozone/methane concentration ratios, and gas hourly space velocities. A model based on Langmuir-Hinshelwood kinetics was developed to analyze the performance of the system. Without the catalyst, the activation energy for methane oxidation with ozone is 148 kJ/mol. Adding catalysts but using oxygen only as oxidant, the activation energy reduces to 114 kJ/mol. Adding ozone to the system greatly reduces the activation energy to 63 kJ/mol. The enhanced methane conversion by adding ozone with catalysts could be attributed to the decomposition of ozone to atomic oxygen species. With the catalyst, at temperatures below 400°C, methane conversion is mainly achieved by reaction with ozone. Adding ozone at this low temperature range can enhance the energy efficiency of methane conversion. Reaction with oxygen becomes increasingly important at higher temperature and becomes the dominant mechanism at above 500°C.M. P. Wan, K. S. Hui, Christopher Y. H. Chao, C. W. Kwon
Beijing qu yi wan hui
No full textLive recording.Electronic reproduction from Rulan Chao Pian V8 collection.Probably presented by : 北京大碗茶商貿集團公司.Performers, unknown.Sung in Chinese.Probably presented by : Beijing da wan cha shang mao ji tuan gong si
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