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Titolo:
A SOLVENT-EXTRACTION METHOD TO STUDY THE LOCATION AND CONCENTRATION OF COKE FORMED ON ZEOLITE CATALYSTS
Autore:
HOLMES SM; GARFORTH A; MAUNDERS B; DWYER J;
Indirizzi:
UNIV MANCHESTER,INST SCI & TECHNOL,DEPT CHEM,CTR MICROPOROUS MAT,SACKVILLE ST,POB 88 MANCHESTER M60 1QS LANCS ENGLAND UNIV MANCHESTER,INST SCI & TECHNOL,DEPT CHEM,CTR MICROPOROUS MAT MANCHESTER M60 1QS LANCS ENGLAND BP CHEM,RES CTR SUNBURY TW13 7LL MIDDX ENGLAND
Titolo Testata:
Applied catalysis. A, General
fascicolo: 2, volume: 151, anno: 1997,
pagine: 355 - 372
SICI:
0926-860X(1997)151:2<355:ASMTST>2.0.ZU;2-X
Fonte:
ISI
Lingua:
ENG
Soggetto:
N-HEPTANE CRACKING; HYDROGEN MORDENITE; USHY ZEOLITE; DEACTIVATION; COKING; REGENERATION; HY; PRODUCTS; HZSM-5; ZSM-5;
Keywords:
ZSM-5; DEACTIVATION; GC-MS; GRAPHITE;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Science Citation Index Expanded
Science Citation Index Expanded
Citazioni:
27
Recensione:
Indirizzi per estratti:
Citazione:
S.M. Holmes et al., "A SOLVENT-EXTRACTION METHOD TO STUDY THE LOCATION AND CONCENTRATION OF COKE FORMED ON ZEOLITE CATALYSTS", Applied catalysis. A, General, 151(2), 1997, pp. 355-372

Abstract

The location and composition of the coke formed over H-ZSM-5 zeolitesduring the cracking of hexadecane at 350 degrees C and at 20 atmospheres was studied. A solvent extraction technique using two different solvents located the coke either on the external surface or within the pores of the zeolite and CC-Ms analysis characterised the soluble coke. Coke was also examined using C-13 MAS NMR and high resolution TEM. Substituted benzenes were identified as the major precursors to coke formation, and the external coke had a graphitic structure. The contact time was shown to affect only the rate of formation but not the composition of the coke.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 04/12/20 alle ore 03:32:10