MacIntosh, Kathryn L.; Beaumont, Simon K. published the artcile< Nickel-Catalyzed Vapour-Phase Hydrogenation of Furfural, Insights into Reactivity and Deactivation>, Quality Control of 97-99-4, the main research area is nickel catalytic vapor phase hydrogenation furfural.
Furfural is a key bioderived platform mol., and its hydrogenation affords access to a number of important chem. intermediates that can act as drop-in replacements to those derived from crude oil or novel alternatives with desirable properties. Here, the vapor phase hydrogenation of furfural to furfuryl alc. at 180° over standard impregnated Ni catalysts is reported and contrasted with the same reaction over Cu chromite. While the selectivity to furfuryl alc. of the unmodified Ni catalysts is much lower than for Cu chromite as expected, the activity of the Ni catalysts in the vapor phase is significantly higher, and the deactivation profile remarkably similar. In the case of the supported Ni catalysts, possible contribution to the deactivation by acidic sites on the catalyst support is discounted based on the similarity of deactivation kinetics on Ni/SiO2 with those seen for less acidic Ni/TiO2 and Ni/CeO2. Powder x-ray diffraction is used to exclude sintering as a primary deactivation pathway. Significant coking of the catalyst (∼ 30% over 16 h) is observed using temperature programmed oxidation This, in combination with the solvent extraction anal. and IR spectroscopy of the coked catalysts points to deactivation by polymeric condensation products of (reactant or) products and hydrocarbon like coke. These findings pave the way for targeted modification of Ni catalysts to use for this important biofeedstock-to-chems. transformation.
Topics in Catalysis published new progress about Hydrogenation. 97-99-4 belongs to class tetrahydrofurans, and the molecular formula is C5H10O2, Quality Control of 97-99-4.
Referemce:
Tetrahydrofuran – Wikipedia,
Tetrahydrofuran | (CH2)3CH2O – PubChem