Effects of promoter and moisture on the deactivation of FSO3H catalyst in the synthesis of HFC-152a by hydrofluorination of acetylene

Young-Ho Lee; Jae-Duck Kim; Jaehoon Kim; Hwayong Kim; Youn-Woo Lee

Korean Journal of Chemical Engineering, Vol.26, No.3, 702-704, May, 2009

DOI10.1007/s11814-009-0117-7 Export Citation

Effects of promoter and moisture on the deactivation of FSO3H catalyst in the synthesis of HFC-152a by hydrofluorination of acetylene

Young-Ho Lee, Jae-Duck Kim¹, Jaehoon Kim¹, Hwayong Kim , and Youn-Woo Lee^†

School of Chemical and Biological Engineering, Seoul National University (SNU), Gwanangro 599, Gwanak-gu, Seoul 151-744, Korea
¹Energy and Environment Research Division, Korea Institute of Science and Technology (KIST), 39-1 Hawolgok-dong, Seongbuk-gu, Seoul 136-791, Korea

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The effects of promoter type and moisture on the catalytic activity of fluorosulfonic acid (FSO3H) as a liquid catalyst for the synthesis of HFC-152a by the hydrofluorination of acetylene were investigated. The catalyst containing SnCl4 as a promoter had a long catalyst lifetime compared to that without any promoter. It was also found that the composition of HFC-152a can be maintained at 100% for a long time by the control of the moisture content.

Keywords:HFC-152a;Additives;Liquid FSO3H Catalyst;Acetylene;Hydrofluorination

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Molina RT, Roland FS, Nature, 249, 810 (1974)
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World Meteorological Organization, Scientific Assessment of Ozone Depletion, Report No. 47, Global Ozone Research and Monitoring Project (2002)
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Lee YW, Lee KH, Lim JS, Kim JD, Lee YY, J. Korean Ind. Eng. Chem., 9(5), 629 (1998)

[Related Articles]

[1] Molina RT, Roland FS, Nature, 249, 810 (1974)

[2] Kroeze C, Reijnders L, The Science of The Total Environment, 111, 1 (1992)

[3] World Meteorological Organization, Scientific Assessment of Ozone Depletion, Report No. 47, Global Ozone Research and Monitoring Project (2002)

[4] Ibreighith M, Fiebig M, Leipertz A, Wu G, Fluid Phase Equilibria, 80, 323 (1992)

[5] Faridi N, Todd D, Journal of Cellular Plastics, 43, 345 (2007)

[6] Whalley WB, US Patent, 2,452,975 (1948)

[7] Meussdoerffer JN, Blecher, Niederprum H, US Patent, 3,810,948 (1974)

[8] Manzer LE, Rao VNM, Advances in Catalysis, 39, 329 (1993)

[9] Lee YW, Lee KH, Lim JS, Kim JD, Lee YY, J. Korean Ind. Eng. Chem., 9(5), 629 (1998)