Carbon materials from the Sibunit family and methods for controlling their properties

Плаксин, Г. В.; Бакланова, О. Н.; Лавренов, А. В.; Likholobov, V. A.

doi:10.3103/s0361521914060032

Cited by 37 publications

(13 citation statements)

References 8 publications

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“…Among such supports, a mesoporous carbonaceous material Sibunit is considered as an attractive one because of high mechanical crushing and abrasion strength (up to 200–300 kg/cm 2 ) and high surface area (up to 700 m 2 /g). 2 It combines the properties of graphite and activated carbon. Sibunit catalysts can in principle be produced in a large scale in a number of shape units, such as whole and hollow cylinders, rings, etc., allowing their application in fixed bed reactors.…”

Section: Introductionmentioning

confidence: 99%

Sibunit-Supported Mono- and Bimetallic Catalysts Used in Aqueous-Phase Reforming of Xylitol

Godina

Кирилин

Tokarev

et al. 2018

Ind. Eng. Chem. Res.

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Carbon-supported mono- and bimetallic catalysts prepared via incipient wetness impregnation were systematically studied in aqueous-phase reforming (APR) of xylitol aiming at hydrogen production from biomass. The catalytic performance of several VIII group metals and their combinations, such as Pt, Ni, Pt–Ni, Re, Pt–Re, Ru, Pt–Ru, and Pt–Co, was compared for xylitol APR in a fixed-bed reactor at 225 °C and 29.7 bar (N2). Ni/C, Ru/C, and Re/C catalysts displayed significantly lower activity compared to others. Activity and selectivity to H2 of bimetallic Pt–Ni/C, Pt–Co/C, and Pt–Ru/C catalysts were close to that of Pt/C. Pt–Re/C catalyst showed an outstanding performance which was accompanied by a shift of the reaction pathways to the alkane formation and thereby lower hydrogen selectivity. Addition of the second metal to Pt was not found to be beneficial for hydrogen production, thus leaving Pt/C as the optimum carbon-supported catalyst.

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Section: Introductionmentioning

confidence: 99%

Sibunit-Supported Mono- and Bimetallic Catalysts Used in Aqueous-Phase Reforming of Xylitol

Godina

Кирилин

Tokarev

et al. 2018

Ind. Eng. Chem. Res.

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“…Интенсивное развитие химической промышленности в ХХ веке способствовало активному внедрению в производственные процессы процессов адсорбции, разделения, концентрирования в газовых и жидких средах. С развитием этих процессов возрастала роль углеродных сорбентов [5][6][7][8][9][10][11][12].…”

Section: Abstract: Carbon Sorbents Functional Modeling Pyrolytic Caunclassified

“…Следует отметить, что в зависимости от используемого исходного углеродного материала и требований к углеродному сорбенту последовательность проведения стадий активации и пироуплотнения может быть различной, а в некоторых случаях стадия пироуплотнения может отсутствовать [5,8]. Так, в случае использования материала, обладающего большими прочностными характеристиками, напри-В.В.…”

Section: Abstract: Carbon Sorbents Functional Modeling Pyrolytic Caunclassified

Functional Modeling of Carbon Sorbents Synthesis Control

et al. 2019

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The formalized model of carbon sorbent synthesis control based on the methodology for functional modeling is constructed. The correlations between the directions of use and the properties of carbon sorbents are revealed. The characteristics that are essential regardless of the direction of use of the sorbent, in particular, sorption properties and strength are identified. The technologies based on the gas-phase method of obtaining carbon material are considered, the analysis of individual stages of the process of obtaining carbon sorbents is carried out. The analysis of the influence of the technological parameters of the synthesis on the properties of sorbents is carried out. On the basis of the established relationships, a functional model has been built that provides a hierarchically ordered, structured, visual description of the management of carbon sorbent synthesis. The simulation is performed “from top to bottom” from the most general description to the detail. The resulting model is a set of interrelated graphical diagrams. At the initial stage, the synthesis of carbon sorbent is considered as a single process, the input parameters of which are hydrocarbon gas, the activating agent and the material form factor, the output - carbon sorbent, and the control parameters are the requirements for strength and sorption properties. Then the synthesis process is decomposed. The control processes (analysis of raw material properties and matrix selection), technological processes (raw material preparation) and mixed processes are distinguished as a result of decomposition. The model includes a consistent description of the technological parameters selection (temperature, gas flow and time) for both stages of the synthesis process. The model is the base for information support providing for the production of carbon sorbents with the required properties.

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“…One of the drawbacks of using ACs as a catalyst support material is their limited mechanical stability, especially abrasion strength [32,33]. Typically, briquetting or other techniques that can enhance the mechanical stability of ACs are required to avoid particle shattering and a high pressure drop in a fixedbed reactor [34,35].…”

Section: Introductionmentioning

confidence: 99%

Conversion of furfural to 2-methylfuran over CuNi catalysts supported on biobased carbon foams

et al. 2021

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Carbon materials from the Sibunit family and methods for controlling their properties

Cited by 37 publications

References 8 publications

Sibunit-Supported Mono- and Bimetallic Catalysts Used in Aqueous-Phase Reforming of Xylitol

Sibunit-Supported Mono- and Bimetallic Catalysts Used in Aqueous-Phase Reforming of Xylitol

Functional Modeling of Carbon Sorbents Synthesis Control

Conversion of furfural to 2-methylfuran over CuNi catalysts supported on biobased carbon foams

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