Hydrous pyrolysis of glucose using a rapid pulsed reaction technique
Literature Information
Hamed Baniamerian, Martin Høj, Matthias Josef Beier, Anker Degn Jensen
Hydrous pyrolysis of glucose is a promising method to produce glycolaldehyde and other valuable oxygenates in high yield. In this process, an aqueous glucose solution is sprayed into a fluidized bed at pyrolysis conditions. In this work, a pulsed chromatographic method is proposed for rapid investigation of the effect of operating parameters on the product distribution, especially the glycolaldehyde yield. This new technique also provided insights into the reaction pathways of hydrous glucose cracking and allowed to determine the time-frame in which the reaction takes place. From this, the reaction rate parameters for the kinetics of the retro-aldol condensation reaction leading to glycolaldehyde from glucose, e.g. apparent Arrhenius activation energy (Ea) could be derived. Furthermore, different sugars and different operating parameters such as temperature, carrier gas residence time, pulse injection volume, and solvent type were tested to understand the mechanism behind glucose cracking.
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Source Journal
Reaction Chemistry & Engineering
Reaction Chemistry & Engineering is an interdisciplinary journal reporting cutting-edge research focused on enhancing the understanding and efficiency of reactions. Reaction engineering leverages the interface where fundamental molecular chemistry meets chemical engineering and technology. Challenges in chemistry can be overcome by the application of new technologies, while engineers may find improved solutions for process development from the latest developments in reaction chemistry. Reaction Chemistry & Engineering is a unique forum for researchers whose interests span the broad areas of chemical engineering and chemical sciences to come together in solving problems of importance to wider society. All papers should be written to be approachable by readers across the engineering and chemical sciences. Papers that consider multiple scales, from the laboratory up to and including plant scale, are particularly encouraged.
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