Agricultural and Biosystems Engineering, Chemical and Biological Engineering, Mechanical Engineering, Bioeconomy Institute (BEI), NSF Engineering Research Center for Biorenewable Chemicals
Research Focus Area
Catalysis and Reaction Engineering, Renewable Energy
Journal or Book Title
In this study, carbohydrate-derived pyrolysis oxygenates were used as model compounds to investigate the effect of functional group and molecular size on the product formation from their catalytic conversion over HZSM-5. Functional groups in oxygenates were found to strongly affect the oxygen removal pathway, leading to variations in hydrocarbon formation. This study also found that oxygenates of smaller molecular size tended to form more hydrocarbons and less coke. Coking on the external surface of catalysts was greatest for the largest oxygenates. Isotopic labeling experiments demonstrated that the aldehyde group of HMF was cleaved before the furanic ring diffused into the HZSM-5 catalyst. Product distribution from catalytic pyrolysis of glucose was the same as the weighted sum of products obtained by the catalytic pyrolysis of individual oxygenates known to arise from non-catalytic pyrolysis of glucose. This suggests that oxygenates released during pyrolysis of carbohydrate have no significant interaction during their catalytic conversion over HZSM-5.
The Royal Society of Chemistry
Wang, Kaige; Zhang, Jing; Shanks, Brent H.; and Brown, Robert C., "Catalytic conversion of carbohydrate-derived oxygenates over HZSM-5 in a tandem micro-reactor system" (2015). Chemical and Biological Engineering Publications. 420.