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

来源：

CHINESE JOURNAL OF CATALYSIS | 2012年 / 33卷 / 07期

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

页码：1119 / 1124

页数：6

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-+

← 1 2 3 4 5 →