catalКатализ в промышленностиKataliz v promyshlennosti1816-03872413-6476LLC "KALVIS"10.18412/1816-0387-2024-6-13-23catal-1080Research ArticleКАТАЛИЗ В ХИМИЧЕСКОЙ И НЕФТЕХИМИЧЕСКОЙ ПРОМЫШЛЕННОСТИCATALYSIS IN CHEMICAL AND PETROCHEMICAL INDUSTRYСтруктурированные катализаторы паровой и паровоздушной конверсий этанола в синтез-газ. I. Приготовление и каталитические свойстваStructured catalysts for steam and steam-air conversion of ethanol into synthesis gas: I. Preparation and catalytic propertiesРогожниковВ. Н.RogozhnikovV. N.ctls@kalvis.ruПотемкинД. И.PotemkinD. I.ctls@kalvis.ruСтонкусО. А.StonkusO. M.ctls@kalvis.ruШеферК. И.SheferK. I.ctls@kalvis.ruСалановА. Н.SalanovA. N.ctls@kalvis.ruПахаруковаВ. П.PakharukovaV. P.ctls@kalvis.ruСнытниковП. В.SnytnikovP. V.ctls@kalvis.ruИнститут катализа СО РАН, НовосибирскРоссияBoreskov Institute of Catalysis, NovosibirskRussian Federation2024031220242461323Copyright © LLC "KALVIS", 20242024LLC "KALVIS"LLC "KALVIS"https://www.catalysis-kalvis.ru/jour/about/submissions#copyrightNoticehttps://www.catalysis-kalvis.ru/jour/article/view/1080

Паровая и автотермическая конверсии этанола позволяют получать синтез-газ, подходящий как для питания твердооксидных топливных элементов, так и выступающий в качестве сырья для приложений в химической отрасли. Для эффективного протекания этих реакций необходимо контролировать теплоперенос. В случае эндотермической паровой конверсии этанола возникает проблема передачи тепла от стенок реактора в слой катализатора. Для термонейтральной автотермической конверсии (паровоздушной конверсии) этанола возникает задача перераспределения тепла, выделяющегося во фронтальной части слоя катализатора в результате окисления этанола кислородом, вдоль по слою катализатора для компенсации эндотермического эффекта паровой конверсии этанола. Для решения этих проблем хорошо подходят структурированные катализаторы на основе теплопроводящих подложек – металлических сеток, пенометаллов и других носителей. Такие катализаторы представляют собой сложный композитный материал с многоуровневой структурой «структурированная металлическая подложка – структурный оксидный компонент – активный оксид – наночастицы металлов или сплавов», который совмещает в себе функции теплообменника, распределителя потока и собственно катализатора. В настоящей работе представлены результаты по приготовлению Pt-, Rh-, Pd-, Ru-, Ni-, Co-содержащих структурированных катализаторов, нанесенных на FeCrAl сетчатый носитель, и исследованию их каталитических свойств.

Steam reforming and autothermal reforming of ethanol produce synthesis gas suitable for both powering solid oxide fuel cells and serving as a feedstock for chemical industry applications. For these reactions to occur effectively, heat transfer must be controlled. In the case of endothermic steam reforming of ethanol, the problem of heat transfer from the reactor walls to the catalyst bed arises. For thermoneutral autothermal reforming (steam-air conversion) of ethanol, the problem arises of redistributing the heat released in the front part of the catalyst layer as a result of the oxidation of ethanol with oxygen along the catalyst layer to compensate for the endothermic effect of steam reforming of ethanol. To solve these problems, structured catalysts based on heat-conducting substrates—metal meshes, foam metals, and other supports—are well suited. Such catalysts are a complex composite material with a multi-level structure “structured metal substrate-structural oxide component-active oxide-nanoparticles of metals or alloys”, which combines the functions of a heat exchanger, a flow distributor and the catalyst itself. This work presents the results of the preparation of Pt, Rh, Pd, Ru, Ni, and Co-containing structured catalysts supported on a FeCrAl mesh support and the study of their catalytic properties.

автотермическая конверсияпаровая конверсияэтанолводородструктурированный катализаторautothermal reformingsteam reformingethanolhydrogenstructured catalyst.ReferencesMartinelli M., Castro J. D., Alhraki N., Matamoros M. E., Kropf A. J., Cronauer D. C., Jacobs G., Effect of sodium loading on Pt/ZrO2 during ethanol steam reforming // Appl. Catal. A Gen. 2021. Vol. 610. P. 117947. https://doi.org/10.1016/j.apcata.2020.117947.Martinelli M., Castro J. D., Alhraki N., Matamoros M. E., Kropf A. J., Cronauer D. C., Jacobs G., Effect of sodium loading on Pt/ZrO2 during ethanol steam reforming // Appl. Catal. A Gen. 2021. Vol. 610. P. 117947. https://doi.org/10.1016/j.apcata.2020.117947.Martinelli M., Watson C.D., Jacobs G. Sodium doping of Pt/m-ZrO2 promotes C–C scission and decarboxylation during ethanol steam reforming // Int. J. Hydrogen Energy. 2020. Vol. 45, № 36. P. 18490-18501. https://doi.org/10.1016/j.ijhydene.2019.08.111Martinelli M., Watson C.D., Jacobs G. 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