scholarly journals Physico-chemical Investigations on Catalytic Mechanism. IV. On the Fischer-Tropsch Synthesis of Hydrocarbons (Experimental Series I)

1942 ◽  
Vol 17 (4) ◽  
pp. 166-171 ◽  
Author(s):  
Senzo Hamai ◽  
Shiro Hayashi ◽  
Kiyoshi Shimamura ◽  
Hiroshi Igarashi
Keyword(s):  
Catalytic Mechanism ◽  
Tropsch Synthesis ◽  
Experimental Series ◽  
Fischer Tropsch ◽  
Fischer Tropsch Synthesis ◽  
Physico Chemical

Fischer–Tropsch synthesis over the Fe–Mn/Al2O3 catalyst: modeling and optimization of light olefins using the RSM method

2020 ◽  
Vol 44 (42) ◽  
pp. 18457-18468
Author(s):  
Maryam Arsalanfar
Keyword(s):  
Chemical Properties ◽  
Catalytic Performance ◽  
Tropsch Synthesis ◽  
Light Olefins ◽  
Fischer Tropsch ◽  
Fischer Tropsch Synthesis ◽  
Modeling And Optimization ◽  
Physico Chemical ◽  
Al2o3 Catalyst

The effect of various preparation parameters on the catalytic performance and physico-chemical properties of a supported Fe–Mn catalyst was investigated using the RSM method.

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  

A study on physico-chemical properties and activity of Co-based catalysts supported on SBA-15 in the Fischer-Tropsch synthesis

2013 ◽  
Vol 10 (3/4) ◽  
pp. 313 ◽  
Author(s):  
Luu Cam Loc ◽  
Lac Kien Trieu ◽  
Ho Si Thoang ◽  
Huynh Thi My Trang ◽  
Nguyen Manh Huan ◽  
...  
Keyword(s):  
Chemical Properties ◽  
Tropsch Synthesis ◽  
Fischer Tropsch ◽  
Fischer Tropsch Synthesis ◽  
Physico Chemical

scholarly journals Fischer-Tropsch synthesis over Co/γ-Al2O3 catalyst loaded on ceramic monolith-structured substrate

2020 ◽  
Vol 9 (3) ◽  
pp. 88-93
Author(s):  
Uy Do Pham Noa ◽  
Huan Nguyen Manh ◽  
Loc Hoang Van ◽  
Chien Luc Minh ◽  
Giang Nguyen Thi Chau ◽  
...  
Keyword(s):  
Tubular Reactor ◽  
Chemical Properties ◽  
Tropsch Synthesis ◽  
Impregnation Method ◽  
Fischer Tropsch ◽  
Fischer Tropsch Synthesis ◽  
Physico Chemical ◽  
Bet Specific Surface Area ◽  
Slurry Method ◽  
Al2o3 Catalyst

Cobalt-based catalyst supported on γ-Al2O3­ was prepared by impregnation method and loaded on ceramic monolith-structured substrate by wash-coating slurry method. Physico-chemical properties of the catalysts were characterized by X-ray diffraction (XRD), Brunauer–Emmett–Teller (BET) specific surface area and H2 temperatured-programmed reduction (H2-TPR). Activity of the catalysts for Fischer-Tropsch synthesis was investigated in a tubular reactor in a temperature range of 200-275 oC at 20 bar and GHSV = 3000 h-1. Co/γ-Al2O3 catalyst loaded on ceramic monolith-structured substrate enhanced efficacy of Fischer-Tropsch synthesis by increasing and stabilizing CO conversion and C5+ selectivity, compared to Co/γ-Al2O3 powder catalyst.

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