新型钴基费托合成催化剂的制备与表征  

Synthesis and characterization of a new type of cobalt catalyst for FT synthesis

作　　者：郭萌[1] 陈宜俍[1] 郭士岭[1] 徐军[1] 卫冬燕[1] 

机构地区：[1]郑州大学化工学院,河南郑州450001

出　　处：《应用化工》2008年第9期1022-1024,共3页Applied Chemical Industry

基　　金：河南省科技厅重大科技攻关项目(524270010)

摘　　要：用CoCl3·6H2O和K2SiO3水玻璃共沉淀法制备出了一种蒙脱土结构的新型催化剂。用XRD、SEM和氮气的低温吸附脱附等方法对催化剂的物相结构进行测定，确认该催化剂具有层状结构并有较高的比表面积。经过催化剂的前处理，FT合成在浆态床反应器中进行。反应条件为270℃，0．5MPa，H2／CO=2，反应时间为6h。产物分析得知C9～C25烃类的选择性达到了90％以上。A new smectite-type catalyst synthesized by co-precipitated of CoCl2 · 6H2O and K2SiO3 sodium silicate. The structure of the catalyst was studied by XRD, SEM and N2 adsorption-desorption, it indicated that the catalyst had a high specific surface area. After the preparation of catalyst, the FT synthesis had been done in a slurry bed reactor. The condition was 270 ℃, 0.5 MPa, H2/CO = 2, which was lasts for 6 h. The result of the production analysis showed that the selectivity of C9 - C25 hydrocarbons had achieved above 90%.

关 键 词：钻金属 层状结构 FT合成 碳数分布 

分 类 号：TQ426.81[化学工程]