摘要
用FeCl_3·6H_2O、CoCl_2·6H_2O和Na_2SiO_3水玻璃共沉淀法制备出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℃,0.5 MPa,1.0 NL/g-cat/h,V(H_2):V(CO)=2,反应时间为6 h。产物分析得知C_9～C_(25)烃类的选择性达到了90%以上,使ASF分布规律发生正偏移。
The experiment synthesized a new smectite-type catalyst by co-precipitated of FeCl3· 6H2O ,CoCl2·6H2O and Na2SiO3 sodium silicate. The structure of the catalyst was studied by XRD,SEM and N2 adsorption-desorption,it was 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,1.0 NL/g-cat/h,V（H2） ： V（CO）=2,which was last for 6 hours. The result of the production analysis showed that the selectivity of C9 - C25 hydrocarbons had achieved above 90%,which had broken the ASF distributed rule.
出处
《化工科技》
CAS
2008年第5期29-32,共4页
Science & Technology in Chemical Industry
基金
河南省科技厅项目(524270010)。
关键词
沉淀铁
双金属
层状粘土催化剂
FT合成
碳数分布
Deposited iron
Double metalline
Iron clay catalyst
FT synthesis
Carbon distribution
