Search: onr:"swepub:oai:DiVA.org:ltu-28463" >
ZSM-5 structured ca...
ZSM-5 structured catalysts coated with silicalite-1
- Article/chapterEnglish2004
Publisher, publication year, extent ...
-
Amsterdam :Elsevier,2004
-
printrdacarrier
Numbers
-
LIBRIS-ID:oai:DiVA.org:ltu-28463
-
https://urn.kb.se/resolve?urn=urn:nbn:se:ltu:diva-28463URI
Supplementary language notes
-
Language:English
-
Summary in:English
Part of subdatabase
Classification
-
Subject category:ref swepub-contenttype
-
Subject category:kon swepub-publicationtype
Notes
-
Godkänd; 2004; 20060922 (bajo)
-
Alumina beads were coated with ZSM-5 films ranging from 150 nm to 2300 nm ill thickness. The ZSM-5 boated alumina beads were Subsequently hydrothermally treated in a silicalite-1 synthesis solution ill two steps Whereupon a dense silicalite-1 film was formed oil top of the ZSM-5 film. The materials were tested with two probe reactions and the reactivity was compared before and after coating with silicalite-1. As expected, the para-xylene (pX) isomerization reactivity showed no change for samples with and without the top layer of silicalite-1 for equal amounts Of zeolite. Surprisingly, the triisopropylbenzene (TIPB) conversion did not decrease after the silicalite-1 film was introduced. As measured by XPS, the aluminum concentration at the Surface of the uncalcined silicalite-1 film surface was lower compared to that at the Surface of the calcined ZSM-5 film. However, after calcination the concentration of aluminum was higher at the silicalite-1 film surface than at the ZSM-5 film Surface. These results Suggest that aluminum migrates from the ZSM-5 film into the silicalite-1 film during calcination and testing which results in all active top layer.
Subject headings and genre
Added entries (persons, corporate bodies, meetings, titles ...)
-
Hedlund, JonasLuleå tekniska universitet,Industriell miljö- och processteknik(Swepub:ltu)johe
(author)
-
Msimang, V.Catalysis Research Unit, Department of Chemical Engineering, University of Cape Town
(author)
-
Möller, V.Catalysis Research Unit, Department of Chemical Engineering, University of Cape Town
(author)
-
Sterte, Johan
(author)
-
Luleå tekniska universitetIndustriell miljö- och processteknik
(creator_code:org_t)
Related titles
-
In:Recent advances in the science and technology of zeolites and related materials. Part AAmsterdam : Elsevier, s. 677-6840444518274
Internet link
Find in a library
To the university's database