Partial hydrogenation of edible oils-synthesis and verification of the nickel catalyst
2002
Jovanovic, D. | Markovic, B. | Stankovic, M. | Rozic, Lj. | Novakovic, T. | Vukovic, Z. | Anic, M. | Petrovic, S. (Institute of Chemistry, Technology and Metallurgy - ICTM, Belgrade (Yugoslavia). Department for Catalysis and Chemical Engineering)
The experimental results obtained at the pilot plant and industrial reactor level, have led to the following conclusions: the technology of activating diatomite with characteristics feasible for application in the synthesis of a nickel hydrogenation catalyst and the technology of the nickel hydrogenation catalyst synthesis, have been mastered. The performed synthesis of a "scale-up" catalyst has confirmed the high reproducibility of the synthesis methodology, as well as the good catalytic performances of the laboratory-level synthesized catalyst. The results obtained in the edible vegetable oils (soybean and sunflower oil) hydrogenation process, in a pilot plant and in an industrial 5-ton reactor, do indisputably demonstrate that the synthesized catalyst NICAT-2000 possesses all the properties of other modern catalysts of the same type. The parameters tested such as: the hydrogenation duration-related change of the fatty acids concentration; good selectivity of the catalyst; change in the refractive index and the hydrogenated mass melting point relative to the iodine value change; the change and content of total trans-fatty acids; dilatation changes; good filterability of the catalyst and a negative reaction to the residual nickel that may be present in the product after primary filtration, all indicate that the NICAT-2000 catalyst may be successfully applied in the food industry's vegetable oils hydrogenation processes.
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