能源环境保护2024，Vol.38Issue(2)：155-165,11.DOI:10.20078/j.eep.20240116
乙酸和富芳香组分对生物油电化学提质中聚合结焦的影响
Electrochemical upgrading of bio-oil:Effect of acetic acid and aromatic-rich fraction on coke formation
摘要
Abstract
Bio-oil is the only liquid carbon-containing renewable resource.Due to its complex compo-sition,low calorific value,high acidity,high viscosity,and other factors,it requires upgrading before further utilization.Electrochemical upgrading is a novel,mild and easily controllable method for bio-oil improvement,but it still faces the challenge of coking caused by bio-oil polymerization,which reduces the quality and yield of upgraded bio-oil.By conducting electrochemical upgrading experiments on modulated bio-oils containing different concentrations of acetic acid and aromatic-rich fraction(ARF),and characterizing the solutions and coke after the electrochemical reactions,the effects of acetic acid and ARF on coke yield were investigated,and the influence of acetic acid and ARF on bio-oil polymerization coking was discussed.The results showed that acetic acid could inhibit bio-oil poly-merization coking.Adding 1％mass fraction of acetic acid could reduce coke yield by about 25％,and the coke yield could be further reduced as the acetic acid concentration increased.The ARF could pro-mote bio-oil polymerization coking.When the ARF's mass fraction increased from 60％to 70％,the coke yield increased by about 70％.When the ARF's mass fraction increased to 80％,the coke yield increased by about 150％.Acetic acid inhibited the self-condensation of phenolic substances in bio-oil,reducing the rate of polymerization coking reaction,while ARF enhanced the hydroxyaldehyde con-densation reaction,increasing the rate of polymerization coking reaction.关键词
生物油/电化学/提质/结焦/乙酸/富芳香组分Key words
Bio-oil/Electrochemistry/Upgrading/Coke/Acetic acid/Aromatic-rich fraction分类
资源环境引用本文复制引用
陈俊杰,向军,邓伟,汪雪棚,许凯,徐俊,江龙,苏胜,胡松,汪一..乙酸和富芳香组分对生物油电化学提质中聚合结焦的影响[J].能源环境保护,2024,38(2):155-165,11.基金项目
国家自然科学基金优秀青年基金资助项目(52122608) （52122608）
国家资助博士后研究人员计划资助项目(GZC20230885) （GZC20230885）
