Results
Title

Upgrade of Acetone‐Butanol‐Ethanol Mixture to High‐Value Biofuels over Ca‐Doped Ni‐CaO‐SiO<sub>2</sub> Catalyst.

Authors

Li, Wenyang; Yang, Yishan; Zhang, Huili; Fang, Yunming

Abstract

The selective conversion of biomass fermentation derived from an acetone‐butanol‐ethanol (ABE) mixture into high‐value biofuels is of paramount importance for industrial applications. However, challenges persist in effectively controlling the selectivity of long carbon chain ketones in elevated ABE conversion. In this research, a Ca‐doped Ni‐CaO‐SiO2 catalyst was designed and employed to achieve a remarkable conversion of 89.9 % into ketone products from the extracted ABE mixture. The selectivity for C8+ ketones reaches 41.8 %, demonstrating exceptional performance. The reversible phase transition between Ca2SiO4 and CaCO3 enhances the recyclability, thereby improving the sustainability of the process. Additionally, the trace intermediate 3‐hepten‐2‐one was successfully detected using two‐dimensional GC×GC−MS, elucidating the conversion pathway in the catalytic upgrading of the ABE mixture. This finding offers a potential route for the efficient utilization of biomass and the highly selective production of value‐added chemicals.

Subjects

REVERSIBLE phase transitions; WASTE recycling; BIOMASS conversion; BIOMASS energy; KETONES

Publication

ChemSusChem, 2025, Vol 18, Issue 1, p1

ISSN

1864-5631

Publication type

Academic Journal

DOI

10.1002/cssc.202400899