The sol-gel derived Co-Mn/TiO_2 catalysts for light olefins production

在这个研究工作，二 30%(Co-Mn )/TiO2 催化剂用大音阶的第五音胶化(催化剂 A ) 和一起沉淀(催化剂 B ) 被准备方法。到在 Fischer-Tropsch 合成(英尺) 的 C24 轻石蜡的活动和选择在不同运作的条件下面在一个改正床反应堆被学习了。这些运作的条件是：温度

In this research work, two 30% （Co-Mn） / TiO2 catalysts were prepared using sol-gel （catalyst A） and co-precipitation（catalyst B） methods. The activity and selectivity to C2 ～4 light olefins in Fischer-Tropsch synthesis （FTS） has been studied in afixed-bed reactor under different operational conditions. These operational conditions were： temperature 220 ～ 280 ℃, and totalpressure from 0. 1 ～ 0. 6 MPa. The optimum operating conditions were investigated after steady state. As the results shown, thecatalyst A was more selective to C2 ~4 olefins （58. 7% in 260 ℃） and catalyst B was more selective to C5＋ hydrocarbons.Characterization of both catalysts was carried out by using X-ray diffraction （XRD）, scanning electron microscopy （SEM） and N2 adsorption-desorption measurements methods.