Novel Utilization of Zeolited Fly Ash Hosting Cobalt Nanoparticles as a Catalyst Applied to the Fischer–Tropsch Synthesis

2008 ◽  
Vol 127 (1-2) ◽  
pp. 204-212 ◽  
Author(s):  
F. Fotovat ◽  
M. Kazemeini ◽  
H. Kazemian
Keyword(s):  
Fly Ash ◽  
Cobalt Nanoparticles ◽  
Tropsch Synthesis ◽  
Fischer Tropsch ◽  
Fischer Tropsch Synthesis

scholarly journals Cobalt nanoparticles confined in carbon matrix for probing the size dependence in Fischer-Tropsch synthesis

2019 ◽  
Vol 369 ◽  
pp. 143-156 ◽  
Author(s):  
Qun-Xing Luo ◽  
Li-Peng Guo ◽  
Si-Yu Yao ◽  
Jun Bao ◽  
Zhao-Tie Liu ◽  
...  
Keyword(s):  
Size Dependence ◽  
Carbon Matrix ◽  
Cobalt Nanoparticles ◽  
Tropsch Synthesis ◽  
Fischer Tropsch ◽  
Fischer Tropsch Synthesis

scholarly journals Effect of Manganese Promotion on Al-Pillared Montmorillonite Supported Cobalt Nanoparticles for Fischer-Tropsch Synthesis

2013 ◽  
Vol 34 (10) ◽  
pp. 3005-3012 ◽  
Author(s):  
N. Ahmad ◽  
S.T. Hussain ◽  
B. Muhammad ◽  
N. Ali ◽  
S.M. Abbas ◽  
...  
Keyword(s):  
Cobalt Nanoparticles ◽  
Tropsch Synthesis ◽  
Fischer Tropsch ◽  
Fischer Tropsch Synthesis ◽  
Pillared Montmorillonite

Fischer–Tropsch synthesis catalysed by small TiO2 supported cobalt nanoparticles prepared by sodium borohydride reduction

2016 ◽  
Vol 513 ◽  
pp. 39-46 ◽  
Author(s):  
Jorge A. Delgado ◽  
Carmen Claver ◽  
Sergio Castillón ◽  
Daniel Curulla-Ferré ◽  
Vitaly V. Ordomsky ◽  
...  
Keyword(s):  
Sodium Borohydride ◽  
Cobalt Nanoparticles ◽  
Tropsch Synthesis ◽  
Borohydride Reduction ◽  
Fischer Tropsch ◽  
Fischer Tropsch Synthesis ◽  
Sodium Borohydride Reduction

scholarly journals The Impact of Reduction Temperature and Nanoparticles Size on the Catalytic Activity of Cobalt-Containing BEA Zeolite in Fischer–Tropsch Synthesis

Catalysts ◽  
2020 ◽  
Vol 10 (5) ◽  
pp. 553 ◽  
Author(s):  
Karolina A. Chalupka ◽  
Jacek Grams ◽  
Pawel Mierczynski ◽  
Malgorzata I. Szynkowska ◽  
Jacek Rynkowski ◽  
...  
Keyword(s):  
Cobalt Nanoparticles ◽  
Tropsch Synthesis ◽  
Preparation Procedure ◽  
Pure Hydrogen ◽  
Reduction Temperature ◽  
Fischer Tropsch ◽  
Fischer Tropsch Synthesis ◽  
Bea Zeolite ◽  
Co Conversion ◽  
Liquid Products

A goal of this work was to investigate the influence of the preparation procedure and activation conditions (reduction temperature and reducing medium: pure hydrogen (100% H2) or hydrogen-argon mixture (5% H2-95% Ar)) on the activity of Co-containing BEA zeolites in Fischer–Tropsch synthesis. Therefore, a series of CoBEA zeolites were obtained by a conventional wet impregnation (Co5.0AlBEA) and a two-step postsynthesis preparation procedure involving dealumination and impregnation steps (Co5.0SiBEA). Both types of zeolites were calcined in air at 500 °C for 3 h and then reduced at 500, 800 and 900 °C for 1 h in 100 % H2 and in 5% H2–95% Ar mixture flow. The obtained Red-C-Co5.0AlBEA and Red-C-Co5.0SiBEA catalysts with various physicochemical properties were tested in Fischer–Tropsch reaction. Among the studied catalysts, Red-C-Co5.0SiBEA reduced at 500 °C in pure hydrogen was the most active, presenting selectivity to liquid products of 91% containing mainly C7–C16 n-alkanes and isoalkanes as well as small amount of olefins, with CO conversion of about 11%. The Red-C-Co5.0AlBEA catalysts were not active in the Fischer–Tropsch synthesis. It showed that removal of aluminum from the BEA zeolite in the first step of postsynthesis preparation procedure played a key role in the preparation of efficient catalysts for Fischer–Tropsch synthesis. An increase of the reduction temperature from 500 to 800 and 900 °C resulted in two times lower CO conversion and a drop of the selectivity towards liquid products (up to 62%–88%). The identified main liquid products were n-alkanes and isoalkanes. The higher activity of Red-C-Co5.0SiBEA catalysts can be assigned to good dispersion of cobalt nanoparticles and thus a smaller cobalt nanoparticles size than in the case of Red-C-Co5.0AlBEA catalyst.

Correlation between Hydrocarbon Product Distribution and Solvent Composition in the Fischer–Tropsch Synthesis Catalyzed by Colloidal Cobalt Nanoparticles

ACS Catalysis ◽  
2015 ◽  
Vol 5 (8) ◽  
pp. 4568-4578 ◽  
Author(s):  
Jorge A. Delgado ◽  
Carmen Claver ◽  
Sergio Castillón ◽  
Daniel Curulla-Ferré ◽  
Cyril Godard
Keyword(s):  
Product Distribution ◽  
Cobalt Nanoparticles ◽  
Solvent Composition ◽  
Tropsch Synthesis ◽  
Fischer Tropsch ◽  
Fischer Tropsch Synthesis ◽  
Hydrocarbon Product

Effect of polymeric stabilizers on Fischer–Tropsch synthesis catalyzed by cobalt nanoparticles supported on TiO2

2016 ◽  
Vol 417 ◽  
pp. 43-52 ◽  
Author(s):  
Jorge A. Delgado ◽  
Carmen Claver ◽  
Sergio Castillón ◽  
Daniel Curulla-Ferré ◽  
Vitaly V. Ordomsky ◽  
...  
Keyword(s):  
Cobalt Nanoparticles ◽  
Tropsch Synthesis ◽  
Fischer Tropsch ◽  
Fischer Tropsch Synthesis
Sign in / Sign up

Export Citation Format

Share Document