Liquefaction of Kraft Lignin at Atmospheric Pressure

• 作者: Darci Alberto Gatto Itziar Egüés Maria Angeles Andres Patricia Soares Bilhalva dos Santos Silvia Helena Fuentes da Silva
• 来源期刊: 可再生材料杂志(英文)
• 学科: 化学
• 关键词: Biopolyols KRAFT LIGNIN LIQUEFACTION RENEWABLE resource THERMOCHEMICAL conversion
• 年，卷（期）: kzsclzzyw_2019,（6）
• 页码范围: 527-534
• 页数: 8页
• 分类号: O64

摘要

Kraft lignin was liquefied using polyethylene glycol#400(PEG)and glycerol(G)in a weight ratio of 80/20(w/w)and sulphuric acid(SA)as catalyst under atmospheric pressure at 160℃.The three independent variables:reaction time(60,80 and 100 min),percentage of lignin(15,20 and 25%,w/w),and catalyst concentration(0,3 and 6%,w/w),were varied resulting in 27 experimental runs.The effect of these reaction conditions on the properties of the polyols was evaluated.The statistical analysis showed that only“the percentage of lignin”did not influence the properties of the liquefied products,however,reaction time and catalyst load were important parameters.The resulting liquefied products were characterized by FTIR analysis.