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Optimization of a Mixed Additive and its Effect on Physicochemical Properties of Bio‐Oil
Author(s) -
Zhang Le,
Liu Ronghou,
Yin Renzhan,
Mei Yuanfei,
Cai Junmeng
Publication year - 2014
Publication title -
chemical engineering and technology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.403
H-Index - 81
eISSN - 1521-4125
pISSN - 0930-7516
DOI - 10.1002/ceat.201300786
Subject(s) - acetone , chemistry , methanol , viscosity , phenols , ethyl acetate , design–expert , organic chemistry , chromatography , materials science , response surface methodology , composite material
Abstract A final optimal mixed additive consisting of methanol, acetone, and ethyl acetate in specific proportions was obtained by one‐factor multi‐objective optimization of the Design‐Expert software and performed well in a verification experiment. The mixed additive of methanol and ethyl acetate was first prepared separately and then added to bio‐oil, followed by acetone. The viscosity of the additive/bio‐oil mixture was significantly lower than of the crude bio‐oil. Among all chemical compound groups in the bio‐oil, the content of phenols was the highest one. Chemical compounds in bio‐oil after aging had higher molecular mass weights than before. The addition of the final optimal mixed additive and the accelerated aging process could slightly change the intensity and positions of some absorption peaks.