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Information × Registration Number 0223U002523, 0119U101755 , R & D reports Title Creation of methods for the directed catalytic pyrolysis of biomass in order to obtain functional chiral and aromatic compounds popup.stage_title Head Kartel Mykola T., Доктор хімічних наук Registration Date 22-02-2023 Organization Chuiko Institute of Surface Chemistry of NAS of Ukraine popup.description2  Based on the data of in situ FT-IR spectroscopy, TPD MS, and quantum chemical calculations, it was established that both the carboxyl group and aromatic ring groups (OH-, OCH3-) participate in the interaction with the catalyst surface. The structure of the surface complexes of the investigated model compounds of lignin, the ranges and products of their thermal transformations were established. The kinetic parameters (Tmax, n, E≠, ν0 and ΔS≠) of the formation of the main pyrolysis products (4-vinylguaiacol, guaiacol, phenol, cresol, naphthalene, methylnaphthalene, toluene, benzene, etc.) were calculated and probable mechanisms of their formation were proposed. It turned out that the main processes of catalytic pyrolysis of the studied model compounds of lignin are characterized by negative changes in the entropy of activation. This indicates that thermal transformations occur through highly ordered transition states on the catalyst surface. Product Description popup.authors Kulyk Tetyana V. Nastasienko Nataliya S. Palyanitsya Borys B. popup.nrat_date 2023-02-22 Close