Characterization of the Soluble Products Formed during the Hydrothermal Conversion of Biomass-Derived Furanic Compounds by Using LC-MS/MS

Ning Shi; Qiying Liu; Ying Liu; Lijun Chen; Hongyan Zhang; Hongsheng Huang; Longlong Ma

doi:10.1021/acsomega.0c03169

Characterization of the Soluble Products Formed during the Hydrothermal Conversion of Biomass-Derived Furanic Compounds by Using LC-MS/MS

ACS Omega. 2020 Sep 1;5(36):23322-23333. doi: 10.1021/acsomega.0c03169. eCollection 2020 Sep 15.

Authors

Ning Shi^{1

2

3}, Qiying Liu^{2

3}, Ying Liu¹, Lijun Chen¹, Hongyan Zhang¹, Hongsheng Huang¹, Longlong Ma^{2

3}

Affiliations

¹ School of Chemical Engineering, Guizhou Institute of Technology, Guiyang 550003, P. R. China.
² Guangzhou Institute of Energy Conversion, Chinese Academy of Sciences, Guangzhou 510640, P. R. China.
³ Guangdong Provincial Key Laboratory of New and Renewable Energy Research and Development, Guangzhou 510640, P. R. China.

Abstract

To reveal the hydrothermal conversion routes of the biomass-derived furanic compounds, the soluble products formed during the hydrothermal conversion of 5-hydroxymethylfurfural (HMF), furfural, and furfuryl alcohol were analyzed by liquid chromatography-mass spectrometry (LC-MS) and LC-MS/MS. Multiple carbocyclic compounds containing hydroxy group and carbonyl group were detected, with a molecular mass in the range of 154-272 Da and carbon chain of the length 8-15. The formation of these soluble carbocyclic compounds was proposed to involve hydrolytic ring-opening of the furanic ring, intermolecular aldol condensation, intramolecular aldol condensation, and C-C cleavage reaction. The C-C cleavage reaction was proposed to occur on the dicarbonyl structure of the formed primary polymers.