Interaction mechanism between cellulose and hemicellulose during the hydrothermal carbonization of lignocellulosic biomass
نویسندگان
چکیده
The fuel properties of the solid product obtained from hydrothermal carbonization (HTC) are substantially influenced by interaction reactions lignocellulose components. This study focused on cellulose and hemicellulose (represented glucose xylose, respectively) formation mechanism hydrochar through experiments density functional theory methods. Results indicated that furfural was main intermediate xylose then converted into benzenes, which were seldom produced conversion glucose. When co-carbonized hydrothermally, more benzenes generated because exhibited a synergistic effect in forming alkenes, cracked remarkably C2H2. Furthermore, C2H2 reacted with furan transformed formed benzenes. aqueous co-HTC also contained high concentration 5-hydroxymethylfurfural (5-HMF). 5-HMF could polymerize to form insoluble furan−benzene polymers, gradually aggregating organic micronucleus. Subsequently, 5-HMF, furfural, phase immobilized surface micronucleus binding sites, eventually causing growth particles. polymerization between polymers increase aromatization degree hydrochar, thereby enhancing energy hydrochar.
منابع مشابه
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ژورنال
عنوان ژورنال: Energy Science & Engineering
سال: 2022
ISSN: ['2050-0505']
DOI: https://doi.org/10.1002/ese3.1117