Glucose-derived solid acids and their stability enhancement for upgrading biodiesel via esterification
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Glucose-derived solid acids and their stability enhancement for upgrading biodiesel via esterification
Glucose-derived solid acids and their stability enhancement for upgrading biodiesel via esterification
中国化学工程学报(英文版)2019年27卷第5期 页码:1067-1072
Affiliations:
College of Chemical Engineering, Jiangsu Key Lab for the Chemistry & Utilization of Agricultural and Forest Biomass, Nanjing Forestry University,Nanjing,China,210037
Utilization of biomass-derived materials or chemicals plays a significant role in reducing the dependence of unsustainable resources of petroleum and coal. A series of sulfonated glucose-derived solid acids (SGSAs) were developed in this study through a one-step method. These catalysts were characterized by XRD
FT-IR
SEM
and BET to determine their physiochemical properties
and their acid content was measured by acid-base titration. The catalytic performances of SGSA catalysts were evaluated in two esterification reactions:propionic acid or oleic acid with methanol (a typical reaction to upgrade biodiesel). Conversion of oleic acid and selectivity of methyl oleate can reach as high as 93.3% and 94.7% respectively over SGSA-6
which has the highest—SO
3
H density. Moreover
regeneration of spent catalysts by sulfuric acid solution can significantly enhance their stability and reusability.
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Influences of operating conditions on biocatalytic activity and reusability of Novozym 435 for esterification of free fatty acids with short-chain alcohols: A case study of palm fatty acid distillate
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相关作者
Qing Shu
Xinyuan Liu
Yanting Huo
Yuhui Tan
Caixia Zhang
Laixi Zou
Xiaocheng Lin
Youjie Huang
相关机构
School of Chemical and Chemical Engineering, Jiangxi University of Science and Technology
Engineering Research Center of Reaction Distillation, Fujian Province University, College of Chemical Engineering, Fuzhou University
College of Environment and Resources, Fuzhou University
Chemical Engineering Research Unit for Value Adding of Bioresources, Department of Chemical Engineering, Faculty of Engineering, Chulalongkorn University
College of Chemistry & Chemical Engineering, Chongqing University