Journal
ACS SUSTAINABLE CHEMISTRY & ENGINEERING
Volume 9, Issue 20, Pages 7112-7119Publisher
AMER CHEMICAL SOC
DOI: 10.1021/acssuschemeng.1c01339
Keywords
biomass; alkylation; hydrodeoxygenation; dicyclohexylmethane; perhydrofluorene; high-density jet fuel
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Funding
- National Natural Science Foundation of China [51876210]
- Transformational Technologies for Clean Energy and Demonstration, Strategic Priority Research Program of the Chinese Academy of Sciences [XDA21060102]
- local Innovative and Research Teams Project of Guangdong Pearl River Talents Program [2017BT01N092]
- Special Support Program of Guangdong Province for Top Young Talents [2019TQ05L238]
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High-density polycyclic alkanes prepared from lignocellulose biomass are synthesized using lignin-derived phenol and benzyl acetate, followed by hydrodeoxygenation reaction over a Pd/C catalyst. The HDO products show high density and heating values, with perhydrofluorene and dicyclohexylmethane as dominant components. This strategy provides a potential alternative to fossil fuels.
High-density polycyclic alkanes prepared from lignocellulose biomass are an important substitute for fossil fuels. Here, we reported a synthesis strategy in that lignin-derived phenol and benzyl acetate were used to synthesize jet fuel-range high-density alkanes. Benzylphenols (C13-oxygenated compounds) were synthesized through the alkylation reaction of phenol and benzyl acetate over a montmorillonite (MMT) catalyst. The lewis acid site of MMT is favorable for the formation of the benzyl cation, promoting the alkylation reaction. Under the conditions of 140 degrees C and 2 h, the yield of alkylation products reaches 70%. Subsequently, the hydrodeoxygenation (HDO) of alkylation products was conducted over a 5 wt % Pd/C catalyst, and the yield of 85% hydrocarbons was obtained. Perhydrofluorene and dicyclohexylmethane were the dominant components in the HDO products. The density and heating values of HDO products were 0.956 g/cm(3) and 38.9 MJ/L, respectively.
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