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18 results on '"Liu, Tonghao"'

7. Field study on PCDD/F decomposition over VOx/TiO2 catalyst under low-temperature: Mechanism and kinetics analysis

Author

Jianhua Yan, Yunfeng Ma, Jianwen Lai, Jing Hong, Xiaoqing Lin, Xiaodong Li, Li Lina, and Liu Tonghao

Subjects
Chemistry, General Chemical Engineering, Kinetics, Analytical chemistry, General Chemistry, Activation energy, Redox, Decomposition, Industrial and Manufacturing Engineering, Lower temperature, Catalysis, Environmental Chemistry, High surface area, NOx
Abstract

One commercial granular catalyst was investigated, including catalysts characteristics, removal efficiencies (RE) and mechanism of polychlorinated-ρ-dibenzodioxins and dibenzofurans (PCDD/F) and NOx, kinetics analysis of PCDD/F. The high surface area (96.77 m2/g), the dominative species of V5+ (74.79%), and good redox ability and anatase-TiO2 provided the advantages on catalysis of PCDD/F. The RE of PCDD/F were high and followed 94.59% for total PCDD/F (95.43% for toxic PCDD/F)＞90.57% (91.74%)＞87.48% (84.98%), with decreasing operating temperature of SCR (200 ℃, 180 ℃ and 160 ℃, respectively), which were closely associated with the decreasing catalytic reaction rate (k). While the RE of NOx was generally low and decreased from 67.51% to 45.03% and 42.74%, respectively. The catalyst better favors the PCDF removal in higher operating temperature (200 ℃, 180 ℃) but PCDD removal in lower temperature (160 ℃). Kinetics analysis revealed the k of most PCDD/Fs generally decreased with the decreasing operating temperature, and the correlation coefficient (R2) with the k of PCDD, PCDF and PCDD/F were 0.91, 0.99 and 0.97, respectively. The apparent activation energy ( E a ) of PCDD/F was 14.40 kJ/mol, and the E a of PCDD (11.26 kJ/mol) was lower than that of PCDF (17.11 kJ/mol).

Published
2022

9. Transition in source contributions of PM2.5 exposure and associated premature mortality in China during 2005–2015

Author

Zheng, Haotian, primary, Zhao, Bin, additional, Wang, Shuxiao, additional, Wang, Tong, additional, Ding, Dian, additional, Chang, Xing, additional, Liu, Kaiyun, additional, Xing, Jia, additional, Dong, Zhaoxin, additional, Aunan, Kristin, additional, Liu, Tonghao, additional, Wu, Xiaomeng, additional, Zhang, Shaojun, additional, and Wu, Ye, additional

Published
2019
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16. Adsorption of methylene blue from aqueous solution by graphene

Author

Liu, Tonghao, primary, Li, Yanhui, additional, Du, Qiuju, additional, Sun, Jiankun, additional, Jiao, Yuqin, additional, Yang, Guangming, additional, Wang, Zonghua, additional, Xia, Yanzhi, additional, Zhang, Wei, additional, Wang, Kunlin, additional, Zhu, Hongwei, additional, and Wu, Dehai, additional

Published
2012
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17. Adsorption of fluoride from aqueous solution by graphene

Author

Li, Yanhui, primary, Zhang, Pan, additional, Du, Qiuju, additional, Peng, Xianjia, additional, Liu, Tonghao, additional, Wang, Zonghua, additional, Xia, Yanzhi, additional, Zhang, Wei, additional, Wang, Kunlin, additional, Zhu, Hongwei, additional, and Wu, Dehai, additional

Published
2011
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