scholarly journals Proxy-based accelerated discovery of Fischer–Tropsch catalysts

2015 ◽  
Vol 6 (2) ◽  
pp. 935-944 ◽  
Author(s):  
Paul Boldrin ◽  
James R. Gallagher ◽  
Gary B. Combes ◽  
Dan I. Enache ◽  
David James ◽  
...  
Keyword(s):  
Particle Size ◽  
High Throughput ◽  
Operating Conditions ◽  
Tropsch Synthesis ◽  
Fischer Tropsch ◽  
Fischer Tropsch Synthesis

High-throughput XRD and TGA are used to screen hundreds of candidate Fischer–Tropsch synthesis catalyst samples per month for particle size, reducibility and stability under operating conditions. A series of highly stable catalysts based on Co-Ru-Mg-Al2O3 are identified.

scholarly journals Preparation and High-Throughput Testing of TiO2-Supported Co Catalysts for Fischer‒Tropsch Synthesis

Catalysts ◽  
2021 ◽  
Vol 11 (3) ◽  
pp. 352
Author(s):  
Christian Schulz ◽  
Peter Kolb ◽  
Dennis Krupp ◽  
Lars Ritter ◽  
Alfred Haas ◽  
...  
Keyword(s):  
High Throughput ◽  
Anatase Phase ◽  
Rutile Phase ◽  
Tropsch Synthesis ◽  
Performance Tests ◽  
Fischer Tropsch ◽  
Fischer Tropsch Synthesis ◽  
Co Catalysts ◽  
Impregnation Technique ◽  
Co Conversion

A series of Co/TiO2 catalysts was tested in a parameters field study for Fischer‒Tropsch synthesis (FTS). All catalysts were prepared by the conventional impregnation technique to obtain an industrially relevant Co content of 10 wt % or 20 wt %, respectively. In summary, 10 different TiO2 of pure anatase phase, pure rutile phase, as well as mixed rutile and anatase phase were used as supports. Performance tests were conducted with a 32-fold high-throughput setup for accelerated catalyst benchmarking; thus, 48 experiments were completed within five weeks in a relevant operation parameters field (170 °C to 233.5 °C, H2/CO ratio 1 to 2.5, and 20 bar(g)). The most promising catalyst showed a CH4 selectivity of 5.3% at a relevant CO conversion of 60% and a C5+ productivity of 2.1 gC5+/(gCo h) at 207.5 °C. These TiO2-based materials were clearly differentiated with respect to the application as supports in Co-catalyzed FTS catalysis. The most prospective candidates are available for further FTS optimization at a commercial scale.

Particle size effects in Fischer–Tropsch synthesis by cobalt

2012 ◽  
Vol 181 (1) ◽  
pp. 75-81 ◽  
Author(s):  
Zhou-jun Wang ◽  
Stephanie Skiles ◽  
Fan Yang ◽  
Zhen Yan ◽  
D. Wayne Goodman
Keyword(s):  
Particle Size ◽  
Size Effects ◽  
Tropsch Synthesis ◽  
Fischer Tropsch ◽  
Fischer Tropsch Synthesis ◽  
Particle Size Effects

Fischer–Tropsch Synthesis: Morphology, Phase Transformation and Particle Size Growth of Nano-scale Particles

2007 ◽  
Vol 117 (1-2) ◽  
pp. 1-17 ◽  
Author(s):  
Amitava Sarkar ◽  
Deepyaman Seth ◽  
Alan K. Dozier ◽  
James K. Neathery ◽  
Hussein H. Hamdeh ◽  
...  
Keyword(s):  
Particle Size ◽  
Phase Transformation ◽  
Tropsch Synthesis ◽  
Fischer Tropsch ◽  
Fischer Tropsch Synthesis ◽  
Nano Scale ◽  
Size Growth

The effect of pore size or iron particle size on the formation of light olefins in Fischer–Tropsch synthesis

RSC Advances ◽  
2015 ◽  
Vol 5 (37) ◽  
pp. 29002-29007 ◽  
Author(s):  
Yi Liu ◽  
Jian-Feng Chen ◽  
Yi Zhang
Keyword(s):  
Particle Size ◽  
Pore Size ◽  
Carbide Particle ◽  
Iron Carbide ◽  
Iron Particle ◽  
Tropsch Synthesis ◽  
Light Olefins ◽  
Fischer Tropsch ◽  
Fischer Tropsch Synthesis

Smaller iron or iron carbide particle was advantageous to form more light olefins and O/P of C2–C4 was more sensitive to pore size of catalysts.

scholarly journals INFLUENCE OF PREPARING NANOSCALE SUSPENSIONS METHOD ON ITS PHYSICO-CHEMICAL AND CATALYTIC PROPERTIES UNDER THE CONDITIONS OF FISCHER-TROPSCH SYNTHESIS

2018 ◽  
Vol 61 (9-10) ◽  
pp. 70-76 ◽  
Author(s):  
Mayya V. Kulikova ◽  
Oksana S. Dement’eva ◽  
Maria V. Chudakova ◽  
Mikhail I. Ivantsov
Keyword(s):  
Particle Size ◽  
Catalytic Properties ◽  
Precursor Solution ◽  
Tropsch Synthesis ◽  
Fischer Tropsch ◽  
Flash Pyrolysis ◽  
Fischer Tropsch Synthesis ◽  
Metal Precursor ◽  
Physico Chemical ◽  
Active Metal

Methods for the formation of stable iron-containing suspensions that exhibit activity in the conversion of synthesis gas to C5+ hydrocarbons by the Fischer-Tropsch method are proposed. By XRD and DLS methods it was determined that the formation of the Fe2O3 phase with a bimodal particle size distribution of 50 and 295 nm results in the formation of a suspension by the drop thermolysis method − the gradual introduction of the active metal precursor solution into the dispersion medium (mixture of hydrocarbons C19H40-C32H66). Pulsed introduction of the active metal precursor solution (flash-pyrolysis) into the reactor zone leads to the formation of the Fe3O4 phase with a particle size of 91 and 460 nm. By TEM and AFM methods it was established that, regardless of the slurry forming method, large active phase particles are agglomerates of a finer fraction of particles with an average size of 42 nm. The obtained suspensions demonstrated high activity in the Fischer-Tropsch synthesis under the slurry-reactor conditions, however, the degree of CO conversion is slightly higher in the case of the catalytic suspension prepared by the drop thermolysis method. It is shown that the method of forming the suspension significantly affects the fractional composition of the resulting reaction products. In the presence of a suspension obtained by drop thermolysis, the yield of liquid hydrocarbons reaches 130 g/m3, while a high content of C19+ hydrocarbons is observed. The system formed by the method of flash-pyrolysis makes it possible to obtain mainly the gasoline (C5-C10) and diesel (C11-C18) hydrocarbon fractions. It should be noted that the products of the reaction have a high content of unsaturated hydrocarbons, which reaches 55%. Thus, the composition of the final products of FTS can be controlled by the choice of the catalytic suspension prepared method. For citation: Kulikova M.V., Dement’eva O.S., Chudakova M.V., Ivantsov M.I. Influence of preparing nanoscale suspensions method on its physico-chemical and catalytic properties under the conditions of Fischer-Tropsch synthesis. Izv. Vyssh. Uchebn. Zaved. Khim. Khim. Tekhnol. 2018. V. 61. N 9-10. P. 70-75  

Sign in / Sign up

Export Citation Format

Share Document