Synergetic Effect of La and Ba Promoters on Nanostructured Iron Catalyst in Fischer-Tropsch Synthesis

被引:11
作者
Zamani, Yahya [1 ,2 ]
Bakavoli, Mehdi [1 ]
Rahimizadeh, Mohamad [1 ]
Mohajeri, Ali [2 ]
Seyedi, Seyed Mohamad [1 ]
机构
[1] Ferdowsi Univ Mashhad, Dept Chem, Mashhad 9173548974, Iran
[2] Natl Iranian Oil Co, RIPI, Tehran 14665137, Iran
关键词
nanosized iron catalyst; microemulsion method; Fischer-Tropsch synthesis; promoter effect; MANGANESE CATALYST; CO HYDROGENATION; SELECTIVITY; MECHANISM; KINETICS; CEO2; DEACTIVATION; PERFORMANCE; ACTIVATION; BASICITY;
D O I
10.1016/S1872-2067(11)60396-3
中图分类号
O69 [应用化学];
学科分类号
081704 ;
摘要
Effect of promoters such as Barium and Lanthanum has been investigated on the conventional nanostructured iron catalyst in Fischer-Tropsch synthesis (FTS). The nanosized iron-based catalysts were prepared by a microemulsion method with the general formulation of 100Fe/4Cu, 100Fe/4Cu/2La, 100Fe/4Cu/ 1La/1Ba, and 100Fe/4Cu/2Ba. The phase, structure, and morphology of the catalysts were characterized by X-ray diffraction, N-2 adsorption, transmission electron microscopy, temperature-programmed desorption of CO2, and temperature-programmed reduction. The results indicated that the addition of promoters could improve the activity of Fe catalysts for FTS and WGS (water-gas shift reaction) and lower the gas fraction at the outlet. In addition, both Ba- and La-promoted Fe catalysts exhibit the highest activity due to the synergetic effect.
引用
收藏
页码:1119 / 1124
页数:6
相关论文
共 47 条
[1]   Slurry phase Fischer-Tropsch synthesis over manganese-promoted iron ultrafine particle catalyst [J].
Bai, L ;
Xiang, HW ;
Li, YW ;
Han, YZ ;
Zhong, B .
FUEL, 2002, 81 (11-12) :1577-1581
[2]   Effect of the basicity created by La2O3 addition on the catalytic properties of Co(O)/SiO2 in CH4+CO2 reaction [J].
Bouarab, R ;
Cherifi, O ;
Auroux, A .
THERMOCHIMICA ACTA, 2005, 434 (1-2) :69-73
[3]   ACTIVATION STUDIES WITH A PRECIPITATED IRON CATALYST FOR FISCHER-TROPSCH SYNTHESIS .2. REACTION STUDIES [J].
BUKUR, DB ;
NOWICKI, L ;
MANNE, RK ;
LANG, XS .
JOURNAL OF CATALYSIS, 1995, 155 (02) :366-375
[4]   PROMOTER EFFECTS ON PRECIPITATED IRON CATALYSTS FOR FISCHER-TROPSCH SYNTHESIS [J].
BUKUR, DB ;
MUKESH, D ;
PATEL, SA .
INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH, 1990, 29 (02) :194-204
[5]   Deactivation of CeO2-Promoted CO/SiO2 Fischer-Tropsch catalysts [J].
Dai Xiaoping ;
Yu Changchun ;
Li Ranjia .
CHINESE JOURNAL OF CATALYSIS, 2007, 28 (12) :1047-1052
[6]   Role of CeO2 promoter in CO/SiO2 catalyst for Fischer-Tropsch synthesis [J].
Dai Xiaoping ;
Yu Changchun ;
Li Ranjia ;
Shi Haibo ;
Shen Shikong .
CHINESE JOURNAL OF CATALYSIS, 2006, 27 (10) :904-910
[7]   Fischer-Tropsch Synthesis: Reaction mechanisms for iron catalysts [J].
Davis, Burtron H. .
CATALYSIS TODAY, 2009, 141 (1-2) :25-33
[8]   Effect of reducing agents on microstructure and catalytic performance of precipitated iron-manganese catalyst for Fischer-Tropsch synthesis [J].
Ding, Mingyue ;
Yang, Yong ;
Wu, Baoshan ;
Wang, Tiejun ;
Xiang, Hongwei ;
Li, Yongwang .
FUEL PROCESSING TECHNOLOGY, 2011, 92 (12) :2353-2359
[9]  
Dry M.E., 1981, FISCHER TROPSCH SYNT, V1, P159
[10]   CORRELATION BETWEEN CATALYST SURFACE BASICITY AND HYDROCARBON SELECTIVITY IN FISCHER-TROPSCH SYNTHESIS [J].
DRY, ME ;
OOSTHUIZEN, GJ .
JOURNAL OF CATALYSIS, 1968, 11 (01) :18-+