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Titolo:
INFLUENCE OF CHLORINE POISONING OF COPPER ALUMINA CATALYST ON THE SELECTIVE HYDROGENATION OF CROTONALDEHYDE
Autore:
HUTCHINGS GJ; KING F; OKOYE IP; ROCHESTER CH;
Indirizzi:
UNIV LIVERPOOL,DEPT CHEM,LEVERHULME CTR INNOVAT CATALYSIS,POB 147 LIVERPOOL L69 3BX ENGLAND ICI KATALCO,R & T GRP CLEVELAND TS23 1LB ENGLAND UNIV DUNDEE,DEPT CHEM DUNDEE DD1 4HN SCOTLAND
Titolo Testata:
Catalysis letters
fascicolo: 1-2, volume: 23, anno: 1994,
pagine: 127 - 133
SICI:
1011-372X(1994)23:1-2<127:IOCPOC>2.0.ZU;2-T
Fonte:
ISI
Lingua:
ENG
Keywords:
COPPER ALUMINA; CROTONALDEHYDE HYDROGENATION; SELECTIVITY (BUTANAL); CHLORINE POISONING;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Science Citation Index Expanded
Citazioni:
8
Recensione:
Indirizzi per estratti:
Citazione:
G.J. Hutchings et al., "INFLUENCE OF CHLORINE POISONING OF COPPER ALUMINA CATALYST ON THE SELECTIVE HYDROGENATION OF CROTONALDEHYDE", Catalysis letters, 23(1-2), 1994, pp. 127-133

Abstract

The effect of the presence of chlorine on the activity and selectivity of a Cu/Al2O3 catalyst has been examined for the selective hydrogenation of an alphabeta unsaturated aldehyde, crotonaldehyde. Cu/Al2O3 inthe absence of chlorine poisons produced 1-butanol almost exclusively, whereas catalysts pre-dosed with a suitable amount of chlorine compound (CCl4, CHCl3 and CH2Cl2) shifted the product distribution towards formation of butanal. The poisoning effectiveness increased in the order CCl4 < CHCl3 < CH2Cl2 much less than CH3Cl and methyl chloride was found to totally deactivate the catalyst. The most significant enhancement in butanal selectivity was observed with CCl4 and CH2Cl2. The effect of chlorine as a poison is in contrast to the effect of sulphur which enhances formation of crotyl alcohol and the origins of these effects are discussed.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 04/08/20 alle ore 19:18:18