水热液化
柠檬酸
液化
碳氢化合物
肺表面活性物质
化学
催化作用
热液循环
制浆造纸工业
化学工程
有机化学
生物化学
工程类
作者
Yingyuan Wei,Sandile Fakudze,Shilong Yang,Yu Zhang,Tianjiao Xue,Jiangang Han,Jianqiang Chen
标识
DOI:10.1016/j.scitotenv.2022.159235
摘要
Citric acid showed good performance of hydrothermal liquefaction (HTL) of biomass waste via promoting the depolymerization of macromolecules. The synergistic effects of citric acid-surfactants/solid catalysts in the low-temperature (200 °C) catalytic hydrothermal liquefaction of pomelo peel (PP) were studied for the first time. It turned out that citric acid-surfactants promoted the conversion of pomelo peel to bio-oil with a higher yield (26.10–67.72 wt%), higher heating value (17.79–24.77 MJ/kg) and energy yield (33.53–114.11 %), while citric acid-solid catalysts were more conducive to the formation of gas and other products. FT-IR and GC–MS analysis testified that citric acid-surfactants increased the selectivity of hydrocarbons from 49.99 % to 74.19 %. Additionally, the chemical functional groups of bio-oil were characterized by 1H NMR and 13C NMR, indicating that the highest aliphatic content of bio-oils was 89.67 %. Moreover, citric acid-surfactant more environmentally friendly for low temperature liquefaction of biomass.
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