Cobalt Catalyst On The Basis Of The Kendyrlik Shale And Its Approbation In Fisher-Tropsh Synthesis

The method of preparation of the cobalt catalyst and the results of the Fischer-Tropsch synthesis on the resulting catalyst, in which the shale of the Kendyrlik deposit was used as the support, zirconia was used as the promoter. The shale was pretreated by carbonization in an inert argon medium in the temperature range of 25-700 degrees C and activation by steam at 850-900 degrees C for 60 minutes. The catalyst (composition of 10% Co/1% ZrO2/89% slate) in a volume of 100 ml was prepared by double impregnation, wherein salts hexahydrate of cobalt nitrate Co(NO3)(2)center dot 6H(2)O and zirconium oxonitrateZrO (NO3)(3)center dot 2H(2)O were used. Further, the resulting catalyst was tested in Fischer-Tropsch synthesis in order to produce synthetic hydrocarbons. The catalyst was preliminarily reduced in a hydrogen atmosphere at 350 degrees C for 1 hour, at a hydrogen space velocity of 1000 h(-1) and a pressure of 0.2 MPa. The synthesis was carried out (at a molar ratio of H-2/CO/N-2 = 2/1/0.2) in the temperature range 160-220 degrees C, at a space velocity of 500 h(-1), and a pressure of 1.0 MPa. Chromatographic analysis of the hydrocarbons C-6-C-21 obtained showed that mainly alkanes and arenesare formed during the synthesis.