TY - JOUR
T1 - A novel approach for 1,2-propylene glycol production from biomass-derived lactic acid
AU - Xiao, Jiefeng
AU - Huo, Zhibao
AU - Ren, Dezhang
AU - Zhang, Song
AU - Luo, Jiang
AU - Yao, Guodong
AU - Jin, Fangming
N1 - Funding Information:
The authors gratefully acknowledge the financial support from the National Natural Science Foundation of China (No. 21277091 ), The State Key Program of National Natural Science Foundation of China (No. 21436007 ), Key Basic Research Projects of Science and Technology Commission of Shanghai ( 14JC1403100 ) and The Program for Professor of Special Appointment (Eastern Scholar) at Shanghai Institutions of Higher Learning ( ZXDF160002 ). The Project-sponsored by SRF for ROCS, SEM ( BG1600002 ).
PY - 2015/5/1
Y1 - 2015/5/1
N2 - A novel and efficient process for the production of 1,2-propylene glycol with high productivity and high selectivity from biomass-derived lactic acid over CuO was investigated. As a result, CuO exhibited a high catalytic activity while Zn acted as a reductant for the conversion of lactic acid to 1,2-propylene glycol. Among the various reaction parameters, such as catalysts, reductants, temperature, water filling and reaction time we investigated, a 93% yield of 1,2-propylene glycol in the presence of 0.83 mmol lactic acid, 5 mmol CuO and 30 mmol Zn with 35% water filling at 250°C for 2 h was achieved. In addition, a carbon balance at optimum reaction conditions by TOC indicated that approximately 99% lactic acid was converted into liquid products in the transformation. In situ formed hydrogen by the oxidation of Zn in water is effective for the transformation compared to added gases hydrogen. The proposed mechanism for the conversion of lactic acid to 1,2-propylene glycol over CuO is also discussed.
AB - A novel and efficient process for the production of 1,2-propylene glycol with high productivity and high selectivity from biomass-derived lactic acid over CuO was investigated. As a result, CuO exhibited a high catalytic activity while Zn acted as a reductant for the conversion of lactic acid to 1,2-propylene glycol. Among the various reaction parameters, such as catalysts, reductants, temperature, water filling and reaction time we investigated, a 93% yield of 1,2-propylene glycol in the presence of 0.83 mmol lactic acid, 5 mmol CuO and 30 mmol Zn with 35% water filling at 250°C for 2 h was achieved. In addition, a carbon balance at optimum reaction conditions by TOC indicated that approximately 99% lactic acid was converted into liquid products in the transformation. In situ formed hydrogen by the oxidation of Zn in water is effective for the transformation compared to added gases hydrogen. The proposed mechanism for the conversion of lactic acid to 1,2-propylene glycol over CuO is also discussed.
KW - 1,2-Propylene glycol
KW - Biomass
KW - CuO
KW - Hydrothermal reactions
KW - Lactic acid
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U2 - 10.1016/j.procbio.2015.02.004
DO - 10.1016/j.procbio.2015.02.004
M3 - Article
AN - SCOPUS:84939955517
VL - 50
SP - 793
EP - 798
JO - Process Biochemistry
JF - Process Biochemistry
SN - 0032-9592
IS - 5
ER -