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- W2899998985 abstract "The compositions, methods of preparation and specific technological parameters of the production processes of cobalt catalysts for the synthesis of long chain hydrocarbons from synthesis gas were justified. To obtain C35+ selective catalysts by coprecipitation of active components, the carrier must provide a polydisperse distribution of the pore volume along the radii. This is achieved by hydrothermal treatment of the aluminosilicate carrier. To increase the strength of catalysts, it is possible to incorporate natural bentonites and diatomite of Roctov region deposits into the composition of coprecipitated catalysts. Effective catalytic systems are impregnated catalysts on Al2O3 and SiO2 supports with aluminum oxide promotion. The insertion of 5% - Al2O3 of cobalt metal mass allows to form crystallites of Co-CoO system with a size of 8 nm on the SiO2 surface, which provides high activity and selectivity for ceresin. Aluminum oxide is stabilized with Co3O4 in a structure with a high degree of ordering, without hindering its reduction, with the formation of cobalt predominantly with the crystalline structure of hexagonal close packing. Catalyst technologies are implemented in industry. The catalysts underwent continuous continuous testing (1000 h) in laboratory and industrial conditions, showed high stability of operation. During the entire operation, the yield of C5+ hydrocarbons was 159-171 g/Nm3 based on the processed synthesis gas. The long-chain hydrocarbons C35+ (ceresin) obtained are of high quality: the dropping point was 114-116 °C (37-40% ceresin content). Operation during the year of two industrial reactors at the Novocherkassk plant of synthetic products with a total volume of catalyst loading of 18 m3 confirmed the results of laboratory tests.
 For citation:
 Savostyanov A.P., Yakovenko R.E., Narochny G.B., Bakun V.G., Merkin A.A. Development and industrial approbation of technologies of cobalt catalysts for synthesis of long chain hydrocarbons from synthesis gas. Izv. Vyssh. Uchebn. Zaved. Khim. Khim. Tekhnol. 2018. V. 61. N 9-10. P. 53-58" @default.
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- W2899998985 date "2018-10-22" @default.
- W2899998985 modified "2023-09-25" @default.
- W2899998985 title "DEVELOPMENT AND INDUSTRIAL APPROBATION OF TECHNOLOGIES OF COBALT CATALYSTS FOR SYNTHESIS OF LONG CHAIN HYDROCARBONS FROM SYNTHESIS GAS" @default.
- W2899998985 doi "https://doi.org/10.6060/ivkkt20186109-10.5864a" @default.
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