Ozonation of Pyrolytic Aqueous Phase: Changes in the Content of Phenolic Compounds and Color

被引：4

作者：

Liaw, Shi-Shen ^{[1
]}

Justo, Oselys Rodriguez ^{[1
,2
]}

Perez, Victor Haber ^{[1
,3
]}

Zhou, Shuai ^{[1
]}

Garcia-Perez, Manuel ^{[1
]}

机构：

[1] Washington State Univ, Biol Syst Engn, Washington, DC USA

[2] Univ Estacio Sa, Rio De Janeiro, Brazil

[3] State Univ Northern Rio de Janeiro UENF, Proc Engn Sect, Rio De Janeiro, Brazil

来源：

CHEMICAL ENGINEERING & TECHNOLOGY | 2016年 / 39卷 / 10期

关键词：

Bio-oil; Ozonation; Phenol oxidation; Phenolic compounds; Pyrolytic aqueous phase; DOUGLAS-FIR WOOD; BIO-OILS; RHEOLOGICAL PROPERTIES; LIPID PRODUCTION; DEGRADATION; OZONE; FERMENTATION; LEVOGLUCOSAN; BIOMASS; RESINS;

D O I：

10.1002/ceat.201500420

中图分类号：

TQ [化学工业];

学科分类号：

0817 ;

摘要：

Ozonation on the phenols present in pyrolytic aqueous phases attained from bio-mass thermochemical conversion was evaluated. During ozonation, the dark color of original samples was found to decrease as a function of ozonation time. The oxidation kinetics of phenols was quantified by a method based on the color changes of samples. The oxidation profiles showed different behaviors and in some cases the phenols presented a positive correlation with the relative R color parameter, except eugenol, syringol, and vanillin which were markedly different. Finally, the color changes observed seem to be associated with the changes in the overall content of phenols and with the change in the molecular weight of the heavy fractions that include lignin oligomers.

引用

页码：1828 / 1834

页数：7

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