PREPARATION OF FEEDSTOCK FOR HIGH DENSITY JET FUEL SYNTHESIS BY TARGETED DEPOLYMERIZATION OF LIGNIN FROM PHARMACEUTICAL RESIDUES

Jian Yating; Wang Fan; Chen Xiaoyan; Zhang Yu; Yu Qiang; Yuan Zhenhong

doi:10.19912/j.0254-0096.tynxb.2022-1815

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Acta Energiae Solaris Sinica ›› 2024, Vol. 45 ›› Issue (3) : 163-168. DOI: 10.19912/j.0254-0096.tynxb.2022-1815

PREPARATION OF FEEDSTOCK FOR HIGH DENSITY JET FUEL SYNTHESIS BY TARGETED DEPOLYMERIZATION OF LIGNIN FROM PHARMACEUTICAL RESIDUES

Jian Yating^1,2, Wang Fan², Chen Xiaoyan², Zhang Yu², Yu Qiang³, Yuan Zhenhong²

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Abstract

Herein, Lignin from evodia lepta was used as raw material to depolymerize under the coupling of deep eutectic solvent （ChCl-MeOH-AlCl₃·6H₂O） and catalyst （Cu（OAc）₂/1,10-phenanthroline） to generate feedstock for synthesising high-density jet fuel , and the effects of different reaction temperatures, times, solid-liquid ratios, catalyst additions and oxygen pressures on the catalytic oxidative depolymerization of lignin were investigated. The results showed that under the conditions of solid-liquid ratio of 1∶30 g/mL, mass ratio of lignin to Cu（OAc）₂ and 1,10-phenanthroline of 1∶1∶1, oxygen pressure of 3 MPa and 60 ℃ for 3 h, the lignin was selectively depolymerized to produce aromatic aldehydes and ketones used as feedstock for synthesizing high-density jet fuel. The lignin conversion rate reached 80.84%, and the yields of acetovanillone and vanillin were 16.69% and 34.39%, respectively.

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biomass / lignin / oxidative depolymerization / deep eutectic solvents

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Jian Yating, Wang Fan, Chen Xiaoyan, Zhang Yu, Yu Qiang, Yuan Zhenhong. PREPARATION OF FEEDSTOCK FOR HIGH DENSITY JET FUEL SYNTHESIS BY TARGETED DEPOLYMERIZATION OF LIGNIN FROM PHARMACEUTICAL RESIDUES[J]. Acta Energiae Solaris Sinica. 2024, 45(3): 163-168 https://doi.org/10.19912/j.0254-0096.tynxb.2022-1815

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