Transformation of Nanocrystalline MgO Pellets in Reaction with 1-Chlorobutane | Sciact - CRIS-system of Boreskov Institute of Catalysis

Transformation of Nanocrystalline MgO Pellets in Reaction with 1-Chlorobutane Full article

Journal

AIChE Journal
ISSN: 0001-1541 , E-ISSN: 1547-5905

Output data

Year: 2004, Volume: 50, Number: 12, Pages: 3195-3205 Pages count : 11 DOI: 10.1002/aic.10229

Tags

Adsorption, Catalysis, Diffusion, Effectiveness factor, Nanoscale, Pelletization, Porosity

Authors

Gupta Piyush P. ¹ , Hohn Keith L. ¹ , Erickson Larry E. ¹ , Klabunde Kenneth J. ² , Bedilo Alexander F. ²

Affiliations

1	Dept. of Chemical Engineering, Kansas State University, Manhattan, KS 66506
2	Dept. of Chemistry, Kansas State University, Manhattan, KS 66506

Nanoscale MgO, prepared by an aerogel method (AP–MgO), has been found to be a good destructive adsorbent for dehydrochlorination of 1-chlorobutane. MgO is converted to MgCl2 during reaction, but conversion continues because MgCl2 itself is a good catalyst for dehydrochlorination. Pelletization will likely be required in industrial use of AP–MgO to ensure lower pressure drop. Pelletization, however, can lead to internal diffusion limitations. In addition, the phase transformation of MgO to MgCl2 inside the pellets leads to physical changes that may limit the reaction rate. This study reports the changes in AP–MgO physical properties upon pelletization and reaction with 1-chlorobutane. Pore diffusion limitations are noted for all pellets. The phase transformation of MgO to MgCl2 plays an important role in the process, as the physical characteristics substantially change with this transformation. A layer of MgCl2 forms on top of MgO, rendering much of the starting pellet inaccessible to reactants.

Gupta P.P. , Hohn K.L. , Erickson L.E. , Klabunde K.J. , Bedilo A.F.
Transformation of Nanocrystalline MgO Pellets in Reaction with 1-Chlorobutane
AIChE Journal. 2004. V.50. N12. P.3195-3205. DOI: 10.1002/aic.10229 WOS Scopus РИНЦ ANCAN OpenAlex

Submitted:	Nov 6, 2003
Accepted:	Mar 18, 2004
Published online:	Nov 11, 2004
Published print:	Dec 1, 2004

Web of science:	WOS:000225445000018
Scopus:	2-s2.0-10844250168
Elibrary:	14243247
Chemical Abstracts:	2004:1062525
Chemical Abstracts (print):	142:203360
OpenAlex:	W2158951169

DB	Citing
Web of science	12
Scopus	17
OpenAlex	16