2007
DOI: 10.1016/j.ces.2007.03.034
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Differentiation of catalyst and catalyst support in a fixed bed by magnetic resonance imaging

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Cited by 7 publications
(2 citation statements)
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“…More reactant vapour and its faster diffusive transport as compared to the liquid phase accelerate the reaction and lead to the fast catalyst temperature rise and the substantial emptying of the pellet. At some point, however, the mass transport and/or phase transition processes become the bottleneck, the reaction subsides and the liquid front advances again (images [15][16][17][18][19][20][21][22][23]. The results seem to indicate that the ignition starts in the subsurface region of the catalyst pellet.…”
Section: Imaging Of Single-catalyst-pellet Reactorsmentioning
confidence: 99%
See 1 more Smart Citation
“…More reactant vapour and its faster diffusive transport as compared to the liquid phase accelerate the reaction and lead to the fast catalyst temperature rise and the substantial emptying of the pellet. At some point, however, the mass transport and/or phase transition processes become the bottleneck, the reaction subsides and the liquid front advances again (images [15][16][17][18][19][20][21][22][23]. The results seem to indicate that the ignition starts in the subsurface region of the catalyst pellet.…”
Section: Imaging Of Single-catalyst-pellet Reactorsmentioning
confidence: 99%
“…It was reported that upon reduction of adsorbed hexachloroplatinate, the T 1 relaxation contrast became much less pronounced or even unobservable. 12 However, in a different study 15 it was demonstrated that the spin-spin relaxation time T 2 of n-heptane was different in the catalyst (Pd/Al 2 O 3 ) and support (Al 2 O 3 ) particles. A 3D image of a bed of randomly mixed catalyst and support particles was then detected and partitioned into the individual beads.…”
Section: Preparation Of Supported Catalystsmentioning
confidence: 99%