Artículo
Valorization of Polyolefin/LCO Blends over HZSM-5 Zeolites
Fecha de publicación:
01/2002
Editorial:
De Gruyter
Revista:
International Journal of Chemical Reactor Engineering
e-ISSN:
1542-6580
Idioma:
Inglés
Tipo de recurso:
Artículo publicado
Clasificación temática:
Resumen
The cracking of low density polyethylene (PE) and of polypropylene (PP)
dissolved in LCO (light cycle oil, product of a commercial FCC unit) is studied
in the 450−550 oC range, by using a reactor simulating a FCC riser. The
reaction was carried out on catalysts prepared based on HZSM−5 zeolites with
different Si/Al ratio The results are explained by the shape selectivity of the
HZSM−5 zeolite and by the total acidity, which decreases as the Si/Al ratio
of the zeolite is increased. A feed with polyolefin content higher than 5 wt%
limits the conversion of LCO. The cracking on HZSM−5 zeolite catalysts of
PE/LCO and PP/LCO blends produces a yield of C5−C12 fraction, which is
highly aromatic and with a high content of styrene, and a low yield of C1 and
C2 gases and of coke. A feed made up of polyolefins and LCO contributes
to increasing the yield of light olefins, of which the concentration of ethylene
increases with temperature. When compared to the coke selectivity of LCO
cracking, a feed with PP contributes to increasing it, whereas PE decreases it.
Palabras clave:
Catalyst
,
Zeolites
,
Polyolefins
,
Valorization
Archivos asociados
Licencia
Identificadores
Colecciones
Articulos(INCAPE)
Articulos de INST.DE INVEST.EN CATALISIS Y PETROQUIMICA "ING. JOSE MIGUEL PARERA"
Articulos de INST.DE INVEST.EN CATALISIS Y PETROQUIMICA "ING. JOSE MIGUEL PARERA"
Citación
Arandes, José M.; Ereña, Javier; Olazar, Martín; Bilbao, Javier Ignacio; de la Puente, Gabriela; Valorization of Polyolefin/LCO Blends over HZSM-5 Zeolites; De Gruyter; International Journal of Chemical Reactor Engineering; 1; 1; 1-2002; Article A8
Compartir
Altmétricas