Synthesis of Lactic Acid by Alkaline Hydrothermal Conversion of Glycerol at High Glycerol Concentration

2010 ◽  
Vol 49 (14) ◽  
pp. 6270-6278 ◽  
Author(s):  
Camilo A. Ramírez-López ◽  
José R. Ochoa-Gómez ◽  
María Fernández-Santos ◽  
Olga Gómez-Jiménez-Aberasturi ◽  
Ainhoa Alonso-Vicario ◽  
...  
Keyword(s):  
Lactic Acid ◽  
Glycerol Concentration ◽  
Hydrothermal Conversion

γ-Valerolactone-Introduced Controlled-Isomerization of Glucose for Lactic Acid Production over Sn-Beta Catalyst

2021 ◽  
Author(s):  
Xinpeng Zhao ◽  
Zhimin Zhou ◽  
hu luo ◽  
Yanfei Zhang ◽  
Wang Liu ◽  
...  
Keyword(s):  
Density Functional Theory ◽  
Lactic Acid ◽  
Dft Calculations ◽  
Acid Production ◽  
Density Functional ◽  
Lactic Acid Production ◽  
Hydrothermal Conversion ◽  
Functional Theory ◽  
Environment Friendly

Combined experiments and density functional theory (DFT) calculations provided insights into the role of the environment-friendly γ-valerolactone (GVL) as a solvent in the hydrothermal conversion of glucose into lactic acid...

Chemicals from biomass: synthesis of lactic acid by alkaline hydrothermal conversion of sorbitol

2011 ◽  
Vol 86 (6) ◽  
pp. 867-874 ◽  
Author(s):  
Camilo A. Ramírez-López ◽  
José R. Ochoa-Gómez ◽  
Silvia Gil-Río ◽  
Olga Gómez-Jiménez-Aberasturi ◽  
Jesús Torrecilla-Soria
Keyword(s):  
Lactic Acid ◽  
Hydrothermal Conversion

scholarly journals Hydrothermal conversion of high-concentrated glycerol to lactic acid catalyzed by bimetallic CuAux (x = 0.01–0.04) nanoparticles and their reaction kinetics

RSC Advances ◽  
2017 ◽  
Vol 7 (49) ◽  
pp. 30725-30739 ◽  
Author(s):  
Lingqin Shen ◽  
Xin Zhou ◽  
Aili Wang ◽  
Hengbo Yin ◽  
Haixu Yin ◽  
...  
Keyword(s):  
Aqueous Solution ◽  
Lactic Acid ◽  
Reaction Kinetics ◽  
Hydrothermal Conversion ◽  
Acid Catalyzed

Bimetallic CuAux nanoparticles with alloy trend effectively catalyzed high-concentrated glycerol to lactic acid in a NaOH aqueous solution.

Effect of Alkaline Catalysts on Hydrothermal Conversion of Glycerin into Lactic Acid

2009 ◽  
Vol 48 (19) ◽  
pp. 8920-8925 ◽  
Author(s):  
Zheng Shen ◽  
Fangming Jin ◽  
Yalei Zhang ◽  
Bing Wu ◽  
Atsushi Kishita ◽  
...  
Keyword(s):  
Lactic Acid ◽  
Hydrothermal Conversion

Efficient production of lactic acid from sugars over Sn-Beta zeolite in water: catalytic performance and mechanistic insights

2019 ◽  
Vol 3 (5) ◽  
pp. 1163-1171 ◽  
Author(s):  
Yuanyuan Sun ◽  
Lei Shi ◽  
Hao Wang ◽  
Gai Miao ◽  
Lingzhao Kong ◽  
...  
Keyword(s):  
Lactic Acid ◽  
Green Synthesis ◽  
Zeolite Catalyst ◽  
Catalytic Performance ◽  
Beta Zeolite ◽  
Efficient Production ◽  
Hydrothermal Conversion ◽  
Acid Yield

Hydrothermal conversion of sugars exceeded 98.0% with lactic acid yield reaching 67.1% over a Sn-Beta zeolite catalyst prepared via a green synthesis.

Hydrothermal Conversion of Glycerin into Lactic Acid by a Continuous-Flow Reactor

2012 ◽  
Vol 10 (1) ◽  
Author(s):  
Guangyi Zhang ◽  
Fangming Jin ◽  
Bing Wu ◽  
Jianglin Cao ◽  
Yousif S. Adam ◽  
...  
Keyword(s):  
Lactic Acid ◽  
Continuous Flow ◽  
Flow Reactor ◽  
Optimal Operation ◽  
High Concentration ◽  
Operation Condition ◽  
Hydrothermal Conversion ◽  
Acid Yield ◽  
Continuous Flow Reactor ◽  
High Efficient

Abstract Using a self-established laboratory scale continuous-flow reactor, the experimental research on continuous hydrothermal conversion of glycerin into lactic acid was made, to lay a foundation for quantity production of lactic acid from glycerin. The optimal operation condition for producing lactic acid in the continuous-flow reactor, and a ~60% lactic acid yield was achieved. Bad mixing of the reactants as well as a large surface area of the inner wall of the reactor tube decreased significantly the lactic acid yields, especially with a long residence time under a high concentration of alkali. The continuous-flow reactor was modified by substituting the 1/8’’ tube with a 1/4’’ tube and equipping a mixing device, and was tested to perform as well as the one with a 1/8’’ tube. The research results would help design and establish a more high-efficient continuous-flow reactor for hydrothermal conversion of glycerin into lactic acid.

Hydrothermal Conversion of Glucose into Lactic Acid with Nickel as a Catalyst

2011 ◽  
Vol 347-353 ◽  
pp. 3873-3876
Author(s):  
Adama Yousif ◽  
Xu Zeng ◽  
Fang Ming Jin ◽  
Yan Fang
Keyword(s):  
Lactic Acid ◽  
Reaction Time ◽  
Reaction Temperature ◽  
Efficient Method ◽  
Optimum Conditions ◽  
Hydrothermal Conditions ◽  
Hydrothermal Conversion ◽  
Acid Yield

In this paper, an efficient method for producing lactic acid from glucose with nickel as a catalyst under hydrothermal conditions has been developed. The addition of nickel can improve the lactic acid yield efficiently under alkaline hydrothermal conditions. The highest lactic acid yield of 35% was obtained under the optimum conditions, i.e., reaction temperature 300 °C, reaction time 60 s, 0.5 mmol nickel and 2.5 M NaOH.

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