School of Chemistry and Chemical Engineering, Yulin University, Yulin 719000, China; Shaanxi Key Laboratory of Low Metamorphic Coal Clean Utilization, Yulin University, Yulin 719000, China.
School of Chemistry and Chemical Engineering, Yulin University, Yulin 719000, China; Shaanxi Key Laboratory of Low Metamorphic Coal Clean Utilization, Yulin University, Yulin 719000, China.
Bioresour Technol. 2019 Nov;292:121286. doi: 10.1016/j.biortech.2019.03.125. Epub 2019 Mar 26.
Hydrothermal liquefaction of Ulva prolifera macroalgae (UM), an aquatic biomass, was carried out in an autoclave reactor at different temperature (270, 290 and 310 °C) and reaction holding time (10, 20 and 30 min.). The catalytic reactions of UM were carried out in the presence of three basic catalysts (KOH, NaOH and NaCO) with the different catalyst amount. Maximum bio-oil yield for non-catalytic liquefaction was (12.0 wt%) at 290 with 10 min reaction time. In the catalytic reaction the maximum bio-oil yield (26.7 wt%) was observed with KOH (0.1 g) catalyst. The chemical components and functional groups present in the bio-oils are identified by GC-MS, FT-IR, H-NMR, TGA and elemental analysis techniques. Majorly nitrogen containing compounds were found with catalytic reaction in bio-oils. The higher heating value (33.6 MJ kg) as well as the higher carbon content (64.2%) was observed in the case of catalytic liquefaction bio-oil.
采用高压釜式反应器，在 270、290 和 310°C 不同温度和 10、20 和 30 min 不同反应时间下对绿潮藻（UM）这种水生生物质进行水热液化。在三种碱性催化剂（KOH、NaOH 和 NaCO）存在下进行 UM 的催化反应，催化剂用量不同。在 290°C 下反应 10 min 时，非催化液化的最大生物油收率为 12.0wt%。在催化反应中，用 0.1 g KOH 催化剂观察到最大生物油收率为 26.7wt%。通过 GC-MS、FT-IR、H-NMR、TGA 和元素分析技术鉴定了生物油中存在的化学组分和官能团。在催化反应中发现生物油中主要含有含氮化合物。在催化液化生物油中，观察到较高的高位热值（33.6 MJ kg）和较高的碳含量（64.2%）。
