Uncatalysed wet oxidation of D-glucose with hydrogen peroxide and its combination with hydrothermal electrolysis.
An increasing interest in biomass as a renewable feedstock for the chemical industry has risen over the last decades, and glucose, the monomer unit of cellulose, has been widely studied as a source material to produce value-added products such as carboxylic acids, mainly gluconic and formic. In this work, the non-catalysed wet oxidation of glucose using hydrogen peroxide has been analysed, obtaining molar yields to gluconic and formic acids up to 15% and 64%, respectively. Glucose conversion was generally between 40 and 50%, reaching over 80% under the highest temperature (200°C). An appropriate choice of temperature can tune product distribution as well as reaction rates. The interaction of the wet oxidation with an electrolytic reaction was also analysed.
Graduate School of Science and Technology, Kumamoto University, Japan.
Teresa
T
Moreno
Goushi
G
Kouzaki
Mitsuru
M
Sasaki
Motonobu
M
Goto
María José
MJ
Cocero
D004572:Electrolysis; D005561:Formates / Q000138:chemical synthesis / Q000737:chemistry; D005942:Gluconates / Q000138:chemical synthesis / Q000737:chemistry; D005947:Glucose / Q000737:chemistry*; D006861:Hydrogen Peroxide / Q000737:chemistry*; D015394:Molecular Structure; D010084:Oxidation-Reduction; D013696:Temperature; D017155:Wettability
D005561:Formates; D005942:Gluconates; D006861:Hydrogen Peroxide; D005947:Glucose; C030691:gluconic acid