Interaction of C2–C6Hydrocarbons with Surfaces of H-ZSM-5 and Ga-H-ZSM-5 Zeolites

  • Keipert O
  • Baerns M
  • 2


    Mendeley users who have this article in their library.
  • 7


    Citations of this article.


The interactions of lower alkanes and alkenes with H-ZSM-5 and Ga-H-ZSM-5 were studied between 373 and 923 K applying carrier-gas free pulsing of the hydrocarbons (1015-1017molecules/pulse) by means of the Temporal Analysis of Products (TAP) method. Ethane was reversibly adsorbed on H-ZSM-5 below 673 K, interaction was not observed above 673K. Ethane was adsorbed on the gallium species of Ga-H-ZSM-5 above 573K, selective dehydrogenation to ethylene occurred at 873 K and above. At low pulse intensities, the adsorption of ethylene on H-ZSM-5 could be studied without interfering reactions like oligomerization, cyclization, or aromatization. At higher pulse intensities, ethylene was converted to benzene via the consecutive formation of butenes and C6alkenes. The existence of 1-hexene and 3-methyl-1-pentene as intermediates is not likely, since they were predominantly cracked, in comparison to 1,5-hexadiene, which showed a higher rate of aromatization. © 1994, Elsevier Science B.V.

Get free article suggestions today

Mendeley saves you time finding and organizing research

Sign up here
Already have an account ?Sign in

Find this document


  • O. P. Keipert

  • M. Baerns

Cite this document

Choose a citation style from the tabs below

Save time finding and organizing research with Mendeley

Sign up for free