Catalysis in Industry

, Volume 8, Issue 4, pp 336–340 | Cite as

Stability of catalysts for the oxidative chlorination of methane

Engineering Problems. Operation and Production
  • 37 Downloads

Abstract

The effects on the stability of catalysts for the oxidative chlorination of methane due to evaporation of the active component (copper chloride) of the catalyst are studied. The volatility of copper chloride is shown to depend mainly on the catalyst composition and temperature. At a moderate 350°C in the reactor, the evaporation of copper chlorides after 5 h is 0.45% on a catalyst containing copper and potassium chloride and 0.72% on a catalyst containing lanthanum chloride. The stability of catalyst operation can be effectively maintained not only by decreasing the volatility of copper chloride, but also by feeding hydrochloric acid with dissolved copper chloride isolated from the reaction gas of methane oxychlorination at the outlet of the reactor (for the removal of reaction heat and the recycling of unconverted hydrogen chloride) back into the reactor.

Keywords

oxidative chlorination methane catalyst deactivation copper chlorides catalysis 

Preview

Unable to display preview. Download preview PDF.

Unable to display preview. Download preview PDF.

References

  1. 1.
    Treger, Yu.A., Rozanov, V.N., and Timoshenko, V.S., Gazokhimiya, 2010, no. 2, pp. 44–50.Google Scholar
  2. 2.
    Fox, J.M., Chen, T.P., and Deden, B.D., Chem. Eng. Prog., 1990, vol. 86, pp. 42–50.Google Scholar
  3. 3.
    Treger, Yu.A., Rozanov, V.N., Flid, M.R., and Kartashov, L.M., Russ. Chem. Rev., 1988, vol. 57, no. 4, pp. 326–335.CrossRefGoogle Scholar
  4. 4.
    Naasz, B.M., Smith, J.S., Toupadakis, A.I., Knutson, C.G., Jarvis, R.F., and Crum, B.R., Am. Chem. Soc., Div. Fuel Chem., 1994, vol. 39, no. 4, pp. 992–996.Google Scholar
  5. 5.
    McDonald, M.A., Zarochak, M.F., and Graham, W.J., Chem. Eng. Sci., 1994, vol. 49, no. 24, part A, pp. 4627–4637.CrossRefGoogle Scholar
  6. 6.
    Treger, Yu.A., Trusov, L.I., Rozanov, V.N., Silina, I.S., Murashova, O.P., Yas’kova, V.Ya., and Bruk, L.G., Vestn. MITKhT, 2013, vol. 8, no. 3, pp. 95–98.Google Scholar
  7. 7.
    Furman, A.A. Neorganicheskie khloridy (Inorganic Chlorides), Moscow: Khimiya, 1980.Google Scholar
  8. 8.
    Shalygin, A.S., Kovalev, E.V., Kanchev, V.V., Paukshtis, E.A., and Bal’zhinimaev, B.S., Abstracts of Papers, Trudy Vserossiiskoi nauchnoi shkoly-konferentsii molodykh uchenykh “Kataliz ot nauki k promyshlennosti” (Proc. All-Russian School-Conference of Young Scientists Catalysis from Science to Industry), Tomsk, 2011, pp. 21–24.Google Scholar
  9. 9.
    RF Patent 2286329, 2006.Google Scholar

Copyright information

© Pleiades Publishing, Ltd. 2016

Authors and Affiliations

  • V. N. Rozanov
    • 1
  • Yu. A. Treger
    • 1
  • I. S. Silina
    • 1
    • 2
  1. 1.OOO NIITs SintezMoscowRussia
  2. 2.Moscow State University of Fine Chemical TechnologiesMoscowRussia

Personalised recommendations