Open AccessEnhancement of furfural formation from C5 carbohydrates by NaCl in a green reaction system of CO 2 –water–isopropanol
Author(s) -
Zhao Yuan,
Lin Haizhou,
Wang Shurong
Publication year - 2017
Publication title -
energy science and engineering
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.638
H-Index - 29
ISSN - 2050-0505
DOI - 10.1002/ese3.173
Subject(s) - furfural , xylose , yield (engineering) , chemistry , arabinose , xylan , reaction conditions , catalysis , chemical engineering , nuclear chemistry , organic chemistry , fermentation , materials science , polysaccharide , engineering , metallurgy
A novel green reaction system of CO 2 –water–isopropanol has been developed for the production of furfural ( FF ) from xylose. Initially, a simple CO 2 –water system was investigated, and the results showed that the formation of FF from xylose was greatly enhanced. CO 2 at high pressure could increase the acidity of the reaction system, and thus the FF yield was improved. By raising the reaction temperature, the conversion of xylose was remarkably accelerated in the CO 2 –water–isopropanol system, leading to an acceptable conversion rate (94.41%) and FF yield (55.81%). Addition of an appropriate amount of NaCl further increased the yield to 69.20%. Other carbohydrates (arabinose and xylan) were also tested in the same reaction system and modest results were obtained.