Chinese Journal of Catalysis ›› 2013, Vol. 34 ›› Issue (5): 993-1001.DOI: 10.1016/S1872-2067(11)60522-6

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Catalytic conversion of biomass-derived levulinic acid into ?-valerolactone using iridium nanoparticles supported on carbon nanotubes

DU Xianlonga,b, LIU Yongmeia, WANG Jianqiangb, CAO Yonga, FAN Kangniana   

  1. a Department of Chemistry and Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials, Fudan University, Shanghai 200433, China;
    b Shanghai Institute of Applied Physics, Chinese Academy of Sciences, Shanghai 201800, China
  • Received:2012-11-17 Revised:2013-05-20 Online:2013-05-06 Published:2013-05-06
  • Supported by:

    This work was supported by the National Natural Science Foundation of China (21273044)), the Program for New Century Excellent Talents in University (NCET-09-0305), and Science & Technology Commission of Shanghai Municipality (08DZ2270 500).

Abstract:

A new method has been developed for the catalytic conversion of biomass-derived levulinic acid (LA) into γ-valerolactone (GVL) with molecular hydrogen (H2) using a series of heterogeneous noble metal catalysts. Excellent yields of the GVL were obtained under mild reaction conditions of 50℃ and 2 MPa of H2 using iridium nanoparticles supported on carbon nanotubes (Ir/CNT). It is noteworthy that the reaction proceeded smoothly in the presence of formic acid (FA, co-produced with LA in equimolar amounts during the acid-mediated hydrolysis of lignocellulosic biomass). Furthermore, the FA remained intact, highlighting the practical advantages of this process for the convenient and cost-effective processing of a biomass-derived LA/FA solution. The method is effective for the simultaneous production of GVL and FA from a wide variety of renewable biomass resources.

Key words: Biomass, Levilinic acid, γ-valerolactone, Hydrogenation, Iridium, Carbon nanotube