Fe-based bimetallic catalysts supported on TiO2 for selective CO2 hydrogenation to hydrocarbons

被引：67
|
作者：
Boreriboon, Nuttakorn [1 ,2 ,3 ]
Jiang, Xiao [1 ,2 ]
Song, Chunshan [1 ,2 ]
Prasassarakich, Pattarapan [3 ]
机构：
[1] Penn State Univ, Dept Energy & Mineral Engn, PSU DUT Joint Ctr Energy Res, EMS Energy Inst, 209 Acad Projects Bldg, University Pk, PA 16802 USA
[2] Penn State Univ, Dept Chem Engn, PSU DUT Joint Ctr Energy Res, EMS Energy Inst, 209 Acad Projects Bldg, University Pk, PA 16802 USA
[3] Chulalongkorn Univ, Fac Sci, Dept Chem Technol, Bangkok 10330, Thailand
来源：
JOURNAL OF CO2 UTILIZATION | 2018年 / 25卷
关键词：
CO2; Hydrogenation; TiO2; Support; Fe-based bimetallic catalyst; K/La promotion; FISCHER-TROPSCH SYNTHESIS; GAS SHIFT REACTION; IRON; CONVERSION; SURFACE; POTASSIUM; METHANOL; TITANIA; SYNGAS; COBALT;
D O I：
10.1016/j.jcou.2018.02.014
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
A comparative study was carried out on the CO2 hydrogenation activities and product selectivities of the titania-supported monometallic and bimetallic Fe-based catalysts prepared by one-step wet impregnation. Among the monometallic catalysts (Fe, Co and Cu/TiO2), only Fe/TiO2 catalyst exhibited some selectivity to higher hydrocarbons, while Co/TiO2 and Cu/TiO2 were highly selective only to CH4 and CO, respectively. The addition of a small amount of second metal (Co and Cu) on Fe showed the synergetic promotion on the CO2 conversion and the space-time yields (STY) of hydrocarbon products. The incorporation of K and La as promoters can further improve the activity and product selectivity to higher hydrocarbons, indicating that the promoted Fe-based bimetallic catalysts are promising for CO2 hydrogenation to higher hydrocarbons.
引用
收藏
页码：330 / 337
页数：8
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