COMPARATIVE CATALYTIC STUDIES ON THE CONVERSION OF 1-BUTENE AND N-BUTANE TO ISOBUTENE OVER MCM-22 AND ITQ-2 ZEOLITES
SCIE
SCOPUS
- Title
- COMPARATIVE CATALYTIC STUDIES ON THE CONVERSION OF 1-BUTENE AND N-BUTANE TO ISOBUTENE OVER MCM-22 AND ITQ-2 ZEOLITES
- Authors
- Jung, HJ; Park, SS; Shin, CH; Park, YK; Hong, SB
- Date Issued
- 2007-01
- Publisher
- ACADEMIC PRESS INC ELSEVIER SCIENCE
- Abstract
- The catalytic properties of H-MCM-22 and Pt-MCM-22 for the skeletal isomerization of 1-butene and the dehydroisomerization of n-butane were compared with those obtained from their delaminated derivatives, H-ITQ-2 and Pt-ITQ-2. The overall results of our study strongly suggests that the desired 1-butene and n-butane conversions to isobutene in steady state occur mainly near the pore mouth inlets of the sinusoidal I 0-ring channels retained in both of MCM-22 and ITQ-2 and inside this intralayer void space, respectively, which may be attributed to the unique geometric constraints imposed by the two-dimensionality of the pore system with a suitable degree of ellipticity of 10-ring channels. Whereas coke for-mation on the sinusoidal channels during the 1-butene skeletal isomerization can occur in such a way as to make most of the intrachannel Bronsted acid sites less available for nonselective dimerization-cracking reactions, it appears that the presence of H2 in the n-butane dehydroisomerization stream would prevent extensive coke buildup, thereby allowing pore diffusion of reactants and products even in steady state. (c) 2006 Elsevier Inc. All rights reserved.
- URI
- https://oasis.postech.ac.kr/handle/2014.oak/28415
- DOI
- 10.1016/j.jcat.2006.09.015
- ISSN
- 0021-9517
- Article Type
- Article
- Citation
- JOURNAL OF CATALYSIS, vol. 245, no. 1, page. 65 - 74, 2007-01
- Files in This Item:
- There are no files associated with this item.
Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.