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首页> 外文期刊>Catalysis in industry >Effect of the Particle Size of Globular Nanodisperse Carbon on the Texture and Strength of Molded Sibunit-Type Materials
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Effect of the Particle Size of Globular Nanodisperse Carbon on the Texture and Strength of Molded Sibunit-Type Materials

机译：球状纳米分散碳的粒径对成型Sibunit型材料的织构和强度的影响

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摘要

New large-scale technology can produce porous carbon–carbon composites shaped as 0.5-5 mm grains on the basis of globular nanodisperse carbon (GNC); these composites are referred to as Sibunit. The use of this material as units of more complex shapes, such as rods, tubes, and petals, can help to reduce the hydraulic drag of the sorbent or catalyst bed. The tasks of this study were to manufacture, via extrusion molding, rods on the basis of GNC with various primary particle sizes and to study the effect of GNC particle sizes and heattreatmentparameters on the specific surface area of molded Sibunit. The GNC particle size has a decisive effect on the texture parameters. The greatest specific surface area (600-700 m~2/g) was obtained for GNC with particle sizes of (15-20) ± 5 nm with the strength retained at a level of 3-5 N/mm~2. The results of this work are recommended for use in the development of large-scale technology for manufacturing Sibunit-type supports in various shapes with particle sizes of 2-12 mm and inner channel diameters of 1-6 mm.
机译：新的大规模技术可以在球状纳米分散碳（GNC）的基础上生产形状为0.5-5 mm的多孔碳-碳复合材料;这些复合材料称为Sibunit。将这种材料用作更复杂形状的单元（例如棒，管和花瓣）可以帮助减少吸附剂或催化剂床的水力阻力。这项研究的任务是通过挤出成型，在各种初级粒径的GNC的基础上制造棒材，并研究GNC粒径和热处理参数对模制Sibunit比表面积的影响。 GNC粒径对质地参数具有决定性影响。对于粒径为（15-20）±5 nm的GNC，最大比表面积（600-700 m〜2 / g）得到了保持，强度保持在3-5 N / mm〜2的水平。推荐将这项工作的结果用于开发大规模技术，以制造各种形状的Sibunit型支撑物，颗粒尺寸为2-12 mm，内部通道直径为1-6 mm。

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