Liquefaction of Kraft Lignin at Atmospheric Pressure

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°C. The three independent variables: reaction time (60, 80 and 100 min), percentage of lignin (15, 20 and 25%, w/w),...

Full description

Saved in:
Bibliographic Details
Published inJournal of renewable materials Vol. 7; no. 6; pp. 527 - 534
Main Authors da Silva, Silvia Helena Fuentes, dos Santos, Patricia Soares Bilhalva, Gatto, Darci Alberto, Andres, Maria Angeles, Egüés, Itziar
Format Journal Article
LanguageEnglish
Published Henderson Tech Science Press 01.01.2019
Subjects
Atmospheric pressure
Biopolyols
Catalysts
Glycerol
Independent variables
Kraft Lignin
Lignin
Liquefaction
Polyethylene glycol
Polyols
Reaction time
Renewable Resource
Statistical analysis
Sulfuric acid
Thermochemical Conversion
Online AccessGet full text

Cover

More Information
Summary: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°C. 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.
Bibliography:2164-6325(20190620)7:6L.527;1-
ISSN:2164-6325
2164-6341
DOI:10.32604/jrm.2019.04291