Catalytic Hydrolysis of CCl2F2 over Solid Base CaO/ZrO2

Tian Cheng Liu; Ping Ning; Hong Bin Wang; Jun Ming Guo

doi:10.4028/www.scientific.net/AMR.652-654.1533

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HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 652-654Catalytic Hydrolysis of CCl2F2 over Solid Base...

Catalytic Hydrolysis of CCl₂F₂ over Solid Base CaO/ZrO₂

Abstract:

Catalytic hydrolysis decomposition of dichlorodifluoromethane (CCl2F2) in the presence of water vapor and oxygen was studied over a series of solid base that have different ZrO2 content using a fixed-bed reactor. CO2 and CClF3 were the main-products and no CO was detected as by-product. The decomposition activity depended on the calcination temperature and the Zr:Ca. Calcined at 650 °C and Zr:Ca=1:0.35 were the best catalyst preparation conditions. Adopting low concentration of oxygen and CCl2F2 and high concentration of water vapor is preferable to the achievement of high conversion of CCl2F2 and selectivity for CO2. The catalytic activity of CaO/ZrO2 remained steady for 20 h on stream.

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Periodical:

Advanced Materials Research (Volumes 652-654)

Pages:

1533-1538

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.652-654.1533

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Online since:

January 2013

Authors:

Tian Cheng Liu, Ping Ning, Hong Bin Wang, Jun Ming Guo

Keywords:

Cao/ZrO₂, Catalytic Hydrolysis, Dichlorodifluoromethane (CCl₂F₂), Solid Base

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References

[1] T. Tsuboi, K. Ishii, K. Itoh, Shock Waves. Vol. 10 (2001), p.445

Google Scholar

[2] I. Kiricsi, J. B. Nagy, Appl.Catal. A. Vol. 271 (2004), p.27

Google Scholar

[3] A. McCulloch, J. Fluorine Chem. Vol. 123 (2003), p.21

Google Scholar

[4] Z. Ma, W. Hua, Y. Tang, Z. Gao, J. Mol. Catal. A. Vol. 159 (2000), p.335

Google Scholar

[5] H. Zhang, C. F. Ng, S. Y. Lai, Appl. Catal. B. Vol. 55 (2005), p.301

Google Scholar

[6] Y. Takita, H. Wakamatsu, M. Tokumaru H. Nishiguchi, M. Ito, T. Ishihara, Appl. Catal. A. Vol. 194-195 (2000), p.55

Google Scholar

[7] Y. Takita, J. I. Moriyama, Y. Yoshinaga, H. Nishiguchi, T. Ishihara, S. Yasuda, Y. Ueda, M. Kubo, A. Miyamoto, Appl. Catal. A. Vol. 271 (2004), p.55

DOI: 10.1016/j.apcata.2004.02.046

Google Scholar

[8] T. C. Liu, P. Ning, Y. M. Wang, H. Gao. Asian J. Chem. Vol. 22 (2010), p.4431

Google Scholar