期刊
CHINESE JOURNAL OF CATALYSIS
卷 34, 期 5, 页码 993-1001出版社
SCIENCE PRESS
DOI: 10.1016/S1872-2067(11)60522-6
关键词
Biomass; Levilinic acid; gamma-valerolactone; Hydrogenation; Iridium; Carbon nanotube
资金
- National Natural Science Foundation of China [21273044]
- Program for New Century Excellent Talents in University [NCET-09-0305]
- Science & Technology Commission of Shanghai Municipality [08DZ2270 500]
A new method has been developed for the catalytic conversion of biomass-derived levulinic acid (LA) into gamma-valerolactone (GVL) with molecular hydrogen (H-2) using a series of heterogeneous noble metal catalysts. Excellent yields of the GVL were obtained under mild reaction conditions of 50 degrees C and 2 MPa of H-2 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. (C) 2013, Dalian Institute of Chemical Physics, Chinese Academy of Sciences. Published by Elsevier B.V. All rights reserved.
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