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Volume 68, Issue 3
  • ISSN: 2056-5135
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Abstract

Neutron scattering methods such as quasielastic neutron scattering (QENS) and inelastic neutron scattering (INS) have been used to study the reactivity of propene and 1-octene over the acid zeolite catalyst H-ZSM-5. The high activity of the catalyst causes the alkenes to form linear oligomers below room temperature. INS has shown that the reaction proceeds through a hydrogen-bonded intermediate. Studies using propane as an inert analogue for propene have found that the adsorbed C3 molecules spend much of their time undergoing short jumps within the pore channels of the zeolite. Hydrothermal dealumination plays an important role in determining the activity of zeolite catalysts. Dealumination was found to delay the onset of catalytic activity for oligomerisation to higher temperatures and increase the mobility of hydrocarbons within the zeolite, both due to reduced acid-hydrocarbon interactions.

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2023-10-04
2024-07-17
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/content/journals/10.1595/205651324X16964134291592
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Inelastic Neutron Scattering Studies of Propene and 1-Octene Oligomerisation in H-ZSM-5
Johnson Matthey Technology Review 68, 307 (2024); https://doi.org/10.1595/205651324X16964134291592
/content/journals/10.1595/205651324X16964134291592
/content/journals/10.1595/205651324X16964134291592
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  • Article Type: Review Article

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