| 摘要 |
FIELD: catalyst carrier production. ^ SUBSTANCE: invention relates to petrochemical and chemical industry and can be used to manufacture carbon catalyst carriers and sorbents. Granulated carbon black is treated at stirring with hydrocarbon gases at 750-1200°C until material compacted by pyrocarbon is formed. Material is the treated in two steps with gaseous oxidant, in particular overheated water steam. In the first step, treatment is carried out in fluidized bed wherein consumption of oxidant is 3.0 to 30.0 kg per 1 kg of pyrocarbon-compacted material to achieve summary pore volume 0.2-0.5 cm3/g. In the second step, product is placed into drum rotating at peripheral velocity 0.2-4.0 rpm and treated with overheated water steam consumed at a rate 2.0-10.0 kg per kg material. Treatment is continued until achieve summary pore volume achieve value 0.5-1.5 cm3/g. Thus obtained porous carbon material is characterized by specific surface 450-700 m2/g and resistance of granules against abrasion 92-96%. Yield of the product is raised by a factor 1.5-2. ^ EFFECT: improved performance characteristics of product and increased yield. ^ 2 cl, 1 dwg |
