ISOMERIZATION OF N-BUTANE TO ISO-BUTANE OVER BIFUNCTIONAL CATALYSTS ON THE BASIS OF MEDIUM PORE MOLECULAR-SIEVES SAPO-31 AND SAPO-11

Authors
RICHTER M ECKELT R ZUBOWA HL
Citation
M. Richter et al., ISOMERIZATION OF N-BUTANE TO ISO-BUTANE OVER BIFUNCTIONAL CATALYSTS ON THE BASIS OF MEDIUM PORE MOLECULAR-SIEVES SAPO-31 AND SAPO-11, Reaction kinetics and catalysis letters, 53(2), 1994, pp. 309-316
Citations number
11
Categorie Soggetti
Chemistry Physical
Journal title
Reaction kinetics and catalysis letters → ACNP
ISSN journal
01331736
Volume
53
Issue
2
Year of publication
1994
Pages
309 - 316
Database
ISI
SICI code
0133-1736(1994)53:2<309:IONTIO>2.0.ZU;2-O
Abstract
Isomerization of n-butane over bifunctional Pd-impregnated catalyst pe llets consisting of molecular sieve SAPO-31 or SAPO-11 and a silica bi nder has been investigated. Pd/SAPO-31 converts n-butane to iso-butane at temperatures of 700-725 K with good selectivities (more than 70% a t conversion levels of 35-40%). The high activity is attributed to the outstanding properties of medium pore SAPOs for catalyzing the skelet al isomerization of intermediate butenes, which is considered to be th e critical step in the reaction sequence.