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Information × Registration Number 0222U000352, 0120U104708 , R & D reports Title Design and development of zeolite- and nanocarbon-based catalysts with enhanced mass transfer for H2/CH3OH economy popup.stage_title Head Stryzhak Petro Ye., д.х.н. Registration Date 06-01-2022 Organization L. V. Pisarzhevskii Institute Of Physical Chemistry of The National Academy of Sciences of Ukraine popup.description2  Report SRW: 43 pages, contains 5 sections, 19 fig., 3 tabl., 34 references Research object - the object of research is catalytic systems based on alumina, zeolites and carbon nanomaterials. Purpose of work - impact of physicochemical characteristics on the catalytic properties of nanocarbon, zeolite-, and nanocarbon-containing catalysts in the processes of methanol conversion, hydrogenation and dehydrogenation of organic compounds and enhancing the mass transfer of a reagent in a catalyst particle, developing new kinetic scheme of the methanol conversion to dimethyl ether. The aim of the work - to develop zeolite- and nanocarbon-containing catalysts for the conversion of methanol to dimethyl ether and hydrogenation/dehydrogenation processes, which are characterized by increased productivity due to enhanced mass transfer of a reagent in a catalyst pellet. Research methods - synthesis of carbon nanomaterials according to previously developed methods. Investigation of the catalytic activity in stationary and nonstationary regimes. Performing quantum chemical calculations using the US GAMESS module. Formulation of microkinetic parameters that account for the anomalous diffusion in a catalyst pellet and their experimental verification. Results and novelty: As a result of implementation of the project stage, kinetic models of the methanol conversion to dimethyl ether over the synthesized zeolite-containing catalysts are developed and experimentally verified. The models are developed in the frame of Langmuir-Hinshelwood and Eley-Rideal formalisms. Acetylene hydrogenation rates over carbon nanotubes and reduced graphene oxide were investigated with respect to temperature and concentration. Using DFT, the values of the adsorption energy of acetylene molecule on various places on the surface of fullerene C60 and C70 were estimated. The regime of the methanol transport in a zeolite-containing catalyst particle was identified using the diffusion cell method. A numeric scheme Product Description popup.authors Abakumov Olexander O Bychko Igor B Zhokh Olexey O Karpenko Oksana S Trypolskyi Andrii I popup.nrat_date 2022-03-09 Close