Synergistic hydrothermal liquefaction of wheat stalk with homogeneous and heterogeneous catalyst at low temperature. (April 2019)

• Record Type: Journal Article
• Authors: Chen, Yongxing; Cao, Xiudi; Zhu, Shan; Tian, Fengshou; Xu, Yongyan; Zhu, Chaosheng; Dong, Lin
• Is Part Of: Bioresource technology. Volume 278(2019)
• Page Start: 92
• Page End: 98
• Publication Date: 2019-04
• Subjects: Synergistic -- Wheat stalk -- Hydrothermal liquefaction -- Mixed catalyst; Biomass -- Periodicals; Biomass energy -- Periodicals; Bioremediation -- Periodicals; Agricultural wastes -- Periodicals; Factory and trade waste -- Periodicals; Organic wastes -- Periodicals; Bioénergie -- Périodiques; Déchets agricoles -- Périodiques; Déchets industriels -- Périodiques; Déchets organiques -- Périodiques; Déchets (Combustible) -- Périodiques; 662.88
• DOI: 10.1016/j.biortech.2019.01.076
• Languages: English
• ISSNs: 0960-8524

Abstract

Abstract: The effect of Na2 CO3, Fe and Na2 CO3 + Fe during hydrothermal liquefaction (HTL) of wheat stalk with different temperature and reaction time was investigated in this study. The results indicated that Na2 CO3 + Fe can promote the cracking of wheat stalk compared with Na2 CO3 or Fe. Meanwhile, higher temperature favored the decomposition of wheat stalk and formation of heavy bio-oil. The highest heavy bio-oil yield was 24.25 wt% and the maximum liquefaction conversion rate was 89.45 wt% in system of Na2 CO3 + Fe at 270 °C. The analysis results indicated that longer reaction time could promote liquefaction conversion especially for heavy bio-oil with Na2 CO3 + Fe during the process of HTL. GC–MS, UPLC-MS and FT-IR analysis indicated that the major organic compounds in heavy bio-oil were aromatic compounds, alcohols, ketones, alkanes, and aldehydes, among of them aromatic compounds were the most prevalent.