The Effect of Different Supports Calcineal at Different Temperatures on the Catalytic Activity for Fischer-Tropsch Synthesis

In this research work, the alumina, titanium and zeolite supports, are meshed and then calcinatedfor 6 h at different temperatures, which has a great effect on the formed phases, surfacearea, cavity volume and cavity size [1]. A three-metal catalyst (Ce, Co and Fe) is providedwith these supports using a wet impregnation method. The catalyst was tested for synthesis ofgases to light olefins by Fischer-Tropsch synthesis reaction in a fixed bed micro-reactor andthe analysis of the products was carried out using a chromatograph gas machine. For all cases,the functionality, selectivity and the ratio of o/p was investigated and the best reactor conditionsfor these catalysts were prepared by wet inoculation method as follows: The aluminasupport was entered the reactor at 400, 600, 700 and 800 oC, and the best temperature was700oC which had high activity and light olfines. The titana support was entered the reactor at400, 500, 600, 700, 800 and 900 °C, and the best temperature was 800° C which had high activityand light appropriate olfines. The zeolit support was entered the reactor at 400, 500,600, and 800C, and the best temperature was 800 oC which had high output. These temperatureswere considered as optimal temperatures than the other temperatures. Finally, in order todetermine the characteristics of the catalysts, pre-produded and calcinated samples were identifiedbefore and after the test of the reactor using techniques such as SEM (determine the catalysttexture) and BET (determine the surface area, size, and pore size).