In situ measurement of molecular diffusion during catalytic reaction by pulsed-field gradient NMR spectroscopy

Journal Article · Tue Sep 01 00:00:00 EDT 1992 · Journal of Catalysis; (United States)

DOI:https://doi.org/10.1016/0021-9517(92)90153-9· OSTI ID:7007624

Hong, Y; Kaerger, J; Hunger, B ^[1]; Feoktistova, N N; Zhdanov, S P ^[2]

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1. Univ. Leipzig, Linnestrasse (Germany)
2. Grebenshchikov Inst., Saint Petersburg (Russian Federation)

Pulsed-field gradient (PFG) NMR spectroscopy is applied to study the intracrystalline diffusivity of the reactant and product molecules during the conversion of cyclopropane to propene in Zeolite X. The diffusivities are found to be large enough that any influence of intracrystalline diffusion on the overall reaction in flow reactors may be excluded.

• OSTI ID: 7007624
• Journal Information: Journal of Catalysis; (United States), Vol. 137:1; ISSN 0021-9517
• Country of Publication: United States
• Language: English

Related Subjects

02 PETROLEUM
CYCLOALKANES
DEHYDROGENATION
PROPYLENE
SYNTHESIS
ZEOLITES
CATALYTIC EFFECTS
DIFFUSION
NUCLEAR MAGNETIC RESONANCE
PULSE TECHNIQUES
ALKANES
ALKENES
CHEMICAL REACTIONS
HYDROCARBONS
INORGANIC ION EXCHANGERS
ION EXCHANGE MATERIALS
MAGNETIC RESONANCE
MATERIALS
MINERALS
ORGANIC COMPOUNDS
RESONANCE
SILICATE MINERALS
020400* - Petroleum- Processing