ie7b02316_si_001.pdf (418.27 kB)
Oligomerization of Biomass-Derived Light Olefins to Liquid Fuel: Effect of Alkali Treatment on the HZSM‑5 Catalyst
journal contribution
posted on 2017-09-27, 00:00 authored by Xiaoxing Wang, Xiaoyan Hu, Chunshan Song, Kenneth W. Lux, Mehdi Namazian, Tahmina ImamAs
part of a new approach to convert biomass to liquid fuels, we
investigated the effects of alkali treatment on the property and performance
of HZSM-5 catalyst for oligomerization of biomass-derived ethylene
under atmospheric pressure. The characterization results showed that
alkali treatment led to an increase in the total and mesopore volumes
but a decrease in the surface area and micropore volume. When NaOH
concentration was low (<0.5 M), the ZSM-5 structure was largely
preserved with the increase in the mesopores and acidity, while higher
NaOH concentration can severely destroy the zeolite structure, resulting
in a significant reduction in the micropores and acidity. The ethylene
oligomerization results showed that not only the ethylene conversion
and the liquid yield increased but also the catalyst stability was
improved after proper NaOH treatment. The relationship between the
structure and performance has then been discussed.