SCI和EI收录∣中国化工学会会刊

Chinese Journal of Chemical Engineering ›› 2019, Vol. 27 ›› Issue (5): 1067-1072.DOI: 10.1016/j.cjche.2018.07.019

• Catalysis, kinetics and reaction engineering • Previous Articles     Next Articles

Glucose-derived solid acids and their stability enhancement for upgrading biodiesel via esterification

Donglei Mao, Xingguang Zhang, Xiongfei Zhang, Mingmin Jia, Jianfeng Yao   

  1. College of Chemical Engineering, Jiangsu Key Lab for the Chemistry & Utilization of Agricultural and Forest Biomass, Nanjing Forestry University, Nanjing 210037, China
  • Received:2018-06-06 Revised:2018-07-12 Online:2019-06-27 Published:2019-05-28
  • Contact: Jianfeng Yao
  • Supported by:
    Supported by the Natural Science Key Project of the Jiangsu Higher Education Institutions (15KJA220001), Jiangsu Province Six Talent Peaks Project (2016-XCL-043), the Young Natural Science Foundation of Jiangsu Province (BK20170918), and the National Natural Science Foundation of China (NNSFC 21706134).

Glucose-derived solid acids and their stability enhancement for upgrading biodiesel via esterification

Donglei Mao, Xingguang Zhang, Xiongfei Zhang, Mingmin Jia, Jianfeng Yao   

  1. College of Chemical Engineering, Jiangsu Key Lab for the Chemistry & Utilization of Agricultural and Forest Biomass, Nanjing Forestry University, Nanjing 210037, China
  • 通讯作者: Jianfeng Yao
  • 基金资助:
    Supported by the Natural Science Key Project of the Jiangsu Higher Education Institutions (15KJA220001), Jiangsu Province Six Talent Peaks Project (2016-XCL-043), the Young Natural Science Foundation of Jiangsu Province (BK20170918), and the National Natural Science Foundation of China (NNSFC 21706134).

Abstract: 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—SO3H density. Moreover, regeneration of spent catalysts by sulfuric acid solution can significantly enhance their stability and reusability.

Key words: Solid acids, Glucose, Esterification, Oleic acid, Biodiesel

摘要: 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—SO3H density. Moreover, regeneration of spent catalysts by sulfuric acid solution can significantly enhance their stability and reusability.

关键词: Solid acids, Glucose, Esterification, Oleic acid, Biodiesel