Design of a core-shell alumina catalyst support: Understanding the elementary mechanisms damaging coating during drying

S. Ould-Chikh*, N. Brodusch, N. Crozet, M. Hemati, A. Fecant, L. Rouleau

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

Unsaturated compounds are produced by conversion processes, e.g., steam cracking or FCC, which invariably produce a mixture of mono and polyunsaturated hydrocarbons that cannot be directly used in petrochemical processes. A support ready for a controlled thickness deposition of metallic palladium particles by dry impregnation of palladium nitrite solution is put forward. The supports were spherical bi-materials whose core is a low specific surface area alumina and the coating is a high specific surface area alumina. A coating process was developed for a pan granulator where the filler is added as a dry powder under a mineral binder pulverization onto α-Al 2O 3 beads. The effects of filler particle size and the binder/filler ratio were elucidated. A basis to design core-shell catalyst support with limited segmentation and a higher densification was highlighted. This is an abstract of a paper presented at the 18th International Congress of Chemical and Process Engineering (Prague, Czech Republic 8/24-28/2008).

Original languageEnglish (US)
Title of host publicationCHISA 2008 - 18th International Congress of Chemical and Process Engineering
StatePublished - 2008
Externally publishedYes
Event18th International Congress of Chemical and Process Engineering, CHISA 2008 - Prague, Czech Republic
Duration: Aug 24 2008Aug 28 2008

Other

Other18th International Congress of Chemical and Process Engineering, CHISA 2008
CountryCzech Republic
CityPrague
Period08/24/0808/28/08

ASJC Scopus subject areas

  • Chemical Engineering (miscellaneous)
  • Process Chemistry and Technology

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