화학공학소재연구정보센터
홈 로그인 로그아웃 연락처 사이트맵
Korean Journal of Chemical Engineering, Vol.33, No.7, 2063-2072, July, 2016
DOI10.1007/s11814-016-0060-3  Export Citation
Transesterification of soybean oil to biodiesel by tin-based Brønsted-Lewis acidic ionic liquid catalysts
Xiaoxiang Han†, Wei Yan, Chin-Te Hung1, Yanfei He, Pei-Hao Wu1, Li-Li Liu1, Shing-Jong Huang2, and Shang-Bin Liu1, †
  • Department of Applied Chemistry, Zhejiang Gongshang University, Hangzhou 310035, China
  • 1Institute of Atomic and Molecular Sciences, Academic Sinica, Taipei 10617, Taiwan
  • 2Instrumentation Center, National Taiwan University, Taipei 10617, Taiwan
E-mail:,
A series of Brønsted-Lewis acidic ionic liquid (BLAIL) catalysts consisting of sulfonated ionic liquid [SO3H-pmim]Cl and Sn(II) chloride have been synthesized and exploited for catalytic transesterification of soybean oil with methanol to biodiesel. The structural and chemical properties of these [SO3H-pmim]Cl-xSnCl2 (x=0-0.8) catalysts were characterized by different analytical and spectroscopic techniques, such as FT-IR, TGA, and NMR. In particular, their acid properties were studied by solid-state 31P NMR using trimethylphosphine oxide as the probe molecule. The BLAIL catalysts were found highly efficient for transesterification reaction due to the introduction of Lewis acidity by SnCl2 in the initially Brønsted acidic [SO3H-pmim]Cl catalyst. The effects of three independent process variables on biodiesel yield were optimized by response surface methodology (RSM). Consequently, an excellent biodiesel yield of 98.6% was achieved under optimized reaction conditions over the BLAIL catalyst with SnCl2 loading (x) of 0.7.
Keywords:Bronsted-Lewis Acidic Ionic Liquid;Biomass;Transesterification;Biodiesel;Optimization;Response Surface Methodology
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