The catalytic activity of microporous and mesoporous NiCoBeta zeolite catalysts in Fischer–Tropsch synthesis

2021 ◽  
Vol 47 (1) ◽  
pp. 397-418
Author(s):  
Karolina A. Chalupka ◽  
Renata Sadek ◽  
Lukasz Szkudlarek ◽  
Pawel Mierczynski ◽  
Waldemar Maniukiewicz ◽  
...  
Keyword(s):  
Catalytic Activity ◽  
Tropsch Synthesis ◽  
Zeolite Catalysts ◽  
Fischer Tropsch ◽  
Fischer Tropsch Synthesis

Size effect of the carbon-supported bimetallic Fe-Co nanoparticles on the catalytic activity in the Fischer-Tropsch synthesis

Fuel ◽  
2021 ◽  
pp. 122455
Author(s):  
Andrey A. Vasilev ◽  
Mikhail I. Ivantsov ◽  
Ella L. Dzidziguri ◽  
Mikhail N. Efimov ◽  
Dmitry G. Muratov ◽  
...  
Keyword(s):  
Catalytic Activity ◽  
Size Effect ◽  
Tropsch Synthesis ◽  
Fischer Tropsch ◽  
Fischer Tropsch Synthesis ◽  
Co Nanoparticles

Enhanced catalytic activity of cobalt catalysts for Fischer–Tropsch synthesis via carburization and hydrogenation and its application to regeneration

2016 ◽  
Vol 6 (12) ◽  
pp. 4594-4600 ◽  
Author(s):  
Geunjae Kwak ◽  
Du-Eil Kim ◽  
Yong Tae Kim ◽  
Hae-Gu Park ◽  
Seok Chang Kang ◽  
...  
Keyword(s):  
Catalytic Activity ◽  
Active Material ◽  
Catalytic Performance ◽  
Tropsch Synthesis ◽  
Cobalt Catalysts ◽  
Fischer Tropsch ◽  
Fischer Tropsch Synthesis ◽  
Cobalt Carbide ◽  
Catalytically Active

In Fischer–Tropsch synthesis (FTS), cobalt carbide (Co2C) is not a catalytically active material, but rather an undesired cobalt phase associated with low catalytic performance.

Supported Fe/MnOx catalyst with Ag doping for remarkably enhanced catalytic activity in Fischer–Tropsch synthesis

2018 ◽  
Vol 8 (7) ◽  
pp. 1953-1970 ◽  
Author(s):  
Yuebing Xu ◽  
Xinli Jia ◽  
Xiaohao Liu
Keyword(s):  
Catalytic Activity ◽  
Tropsch Synthesis ◽  
Fischer Tropsch ◽  
Fischer Tropsch Synthesis ◽  
Ag Doping

The role of Ag in the promotion of the FTS performance and the evolutions of structure and phase over the Fe/MnOx catalyst has been clearly elucidated.

Metal-rich tellurides PdTe1−xBix as functional materials: Catalytic behavior in the Fischer–Tropsch synthesis and bonding analysis

2020 ◽  
Vol 13 (04) ◽  
pp. 2041001
Author(s):  
Elena Yu. Zakharova ◽  
Anastasiya Yu. Makhaneva ◽  
Maya V. Kulikova ◽  
Maria V. Chudakova ◽  
Mikhail I. Ivantsov ◽  
...  
Keyword(s):  
Catalytic Activity ◽  
High Temperature ◽  
Functional Materials ◽  
Tropsch Synthesis ◽  
Fischer Tropsch ◽  
Catalytic Behavior ◽  
Fischer Tropsch Synthesis ◽  
Bonding Analysis ◽  
Nias Type ◽  
Positive Effect

A series of solid solutions in the PdTe–PdBi system with general formula [Formula: see text]Bix ([Formula: see text], 0.5, 0.67) with the structure based on the NiAs type were synthesized by a high-temperature ampoule technique. These compounds, along with their parent binaries, PdTe and PdBi, were tested as promoters for the standard Co/Al2O3 catalytic system in the Fischer–Tropsch synthesis. It is shown that the addition of PdTe and [Formula: see text]Bix to the standard catalyst increases both yield and selectivity with respect to the liquid phase. At the same time, the addition of PdBi does not only improve catalytic activity, but also slightly inhibits it. Another positive effect of the PdTe and [Formula: see text]Bix addition is the shift in the conversion products toward the diesel and wax fractions. Chemical bonding analysis in orbital and direct space indicates that the addition of Bi to PdTe might increase the localized bonding.

La-ZrO2 and Ru-ZrO2 Promoted Co/SiO2 Catalysts for Fischer-Tropsch Synthesis

2013 ◽  
Vol 634-638 ◽  
pp. 551-554
Author(s):  
Waritsara Bungmek ◽  
Passakorn Kongkinka ◽  
Siwaruk Chotiwan ◽  
Pinsuda Viravathana
Keyword(s):  
Catalytic Activity ◽  
Reaction Time ◽  
Cobalt Catalyst ◽  
Hydrocarbon Chain ◽  
Tropsch Synthesis ◽  
Incipient Wetness Impregnation ◽  
Fischer Tropsch ◽  
Fischer Tropsch Synthesis ◽  
Incipient Wetness ◽  
Co Precipitation

The performance of ZrO2-La promoted silica supported cobalt catalyst (100Co/15ZrO2/ 100Aerosil/0.66La) was compared to the ZrO2-Ru promoted one, 100Co/15ZrO2/100Aerosil/0.66Ru, in Fischer-Tropsch synthesis (FTS). These catalysts were prepared by co-precipitation and incipient wetness impregnation methods. The characterization by XRD confirmed the cobalt phase of Co3O4 in both catalysts. For their catalytic activity on FTS reaction, the results preliminarily showed the higher methane fraction (60-80%) and lower C2-C4(10-20%) and C5+(10-20%) fractions in ZrO2-La promoted catalyst compared to the fractions of methane (20-40%), C2-C4(20-50%), and C5+(10-60%) from the ZrO2-Ru promoted catalyst. During reaction, the maximum n-paraffin selectivity of 40% was at C3and the hydrocarbon chain was up to C6for the ZrO2-La promoted catalyst. For the ZrO2-Ru promoted catalyst, the result showed the maximum n-paraffin of C3at 30 min of reaction time. When the reaction time increased, the maximum n-paraffin selectivity shifted toward higher C number but levelled off (15%) and the hydrocarbon chain was up to C16.

scholarly journals Cobalt Based Catalysts Supported on Two Kinds of Beta Zeolite for Application in Fischer-Tropsch Synthesis

Catalysts ◽  
2019 ◽  
Vol 9 (6) ◽  
pp. 497 ◽  
Author(s):  
Renata Sadek ◽  
Karolina A. Chalupka ◽  
Pawel Mierczynski ◽  
Jacek Rynkowski ◽  
Jacek Gurgul ◽  
...  
Keyword(s):  
Photoelectron Spectroscopy ◽  
Catalytic Performance ◽  
Tropsch Synthesis ◽  
Zeolite Catalysts ◽  
Beta Zeolite ◽  
Fischer Tropsch ◽  
Fischer Tropsch Synthesis ◽  
X Ray ◽  
Liquid Products ◽  
Temperature Programmed

Co-containing Beta zeolite catalysts prepared by a wet impregnation and two-step postsynthesis method were investigated. The activity of the catalysts was examined in Fischer-Tropsch synthesis (FTS), performed at 30 atm and 260 °C. The physicochemical properties of all systems were investigated by means of X-ray diffraction (XRD), in situ XRD, temperature programmed desorption of ammonia (NH3-TPD), X-ray Photoelectron Spectroscopy (XPS), temperature programmed reduction of hydrogen (TPR-H2), and transmission electron microscopy (TEM). Among the studied catalysts, the best results were obtained for the samples prepared by a two-step postsynthesis method, which achieved CO conversion of about 74%, and selectivity to liquid products of about 86%. The distribution of liquid products for Red-Me-Co20Beta was more diversified than for Red-Mi-Co20Beta. It was observed that significant influence of the zeolite dealumination of mesoporous zeolite on the catalytic performance in FTS. In contrast, for microporous catalysts, the dealumination did not play such a significant role and the relatively high activity is observed for both not dealuminated and dealuminated catalysts. The main liquid products of FTS on both mesoporous and microporous catalysts were C10-C14 isoalkanes and n-alkanes. The iso-/n-alkanes ratio for dealuminated zeolite catalysts was three times higher than that for not dealuminated ones, and was related to the presence of different kind of acidic sites in both zeolite catalysts.

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