Lignin depolymerization and conversion: A review of thermochemical methods

Title
Lignin depolymerization and conversion: A review of thermochemical methods
Authors
마도브김창수
Keywords
Depolymerization; Hydrogenolysis; lignin; lignocellulose; Phenols; Pyrolysis
Issue Date
2011-01
Publisher
Chemical Engineering & Technology - CET
Citation
VOL 34, NO 1, 29-41
Abstract
The structure of lignin suggests that it can be a valuable source of chemicals, particularly phenolics. However, lignin depolymerization with selective bond cleavage is the major challenge for converting it into value-added chemicals. Pyrolysis (thermolysis), gasification, hydrogenolysis, chemical oxidation, and hydrolysis under supercritical conditions are the major thermochemical methods studied with regard to lignin depolymerization. Pyrolytic oil and syngases are the primary products obtained from pyrolysis and gasification. A significant amount of char is also produced during pyrolysis. Thermal treatment in a hydrogen environment seems very promising for converting lignin to liquid fuel and chemicals like phenols, while oxidation can produce phenolic aldehydes. Reaction severity, solvents, and catalysts are the factors of prime importance that control yield and composition of the product.
URI
http://pubs.kist.re.kr/handle/201004/38315
ISSN
0930-7516
Appears in Collections:
KIST Publication > Article
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