Effect of copper on highly effective Fe-Mn based catalysts during production of light olefins via Fischer-Tropsch process with low CO2 emission

Gong, Weibo; Ye, Runping; Ding, Jie; Wang, Tongtong; Shi, Xiufeng; Russell, Christopher K.; Tang, Jinke; Eddings, Eric G.; Zhang, Yulong; Fan, Maohong

doi:10.1016/j.apcatb.2020.119302

Cited by 76 publications

(30 citation statements)

References 50 publications

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“…To investigate the chemisorption behavior of the prepared sample, which is important to the synthesized β-SiC when it is used as catalyst support, 53 the CO 2 -temperature programmed desorption (CO 2 -TPD) experiment was performed. As shown in Figure 4c, two desorption peaks can be recognized.…”

Section: ■ Results and Discussionmentioning

confidence: 99%

Synthesis of Highly Nanoporous β-Silicon Carbide from Corn Stover and Sandstone

Wang

Gong

et al. 2020

ACS Sustainable Chem. Eng.

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Porous β-Silicon carbide (β-SiC) is an important ceramic material due to its superior properties, such as high surface area, excellent chemical and mechanical stability, and high resistance toward oxidation and corrosion. In this study, inexpensive and easily obtained corn stover and sandstone were used as the carbon and silicon sources, respectively, and porous β-SiC was effectively synthesized with a high yield. The synthesized β-SiC was characterized by XRD, Raman, SEM, TEM, and TGA, and the gaseous products were also analyzed with an integrated furnace-MS system. The results show that the produced β-SiC exhibited a nanostructure that followed the graphitic carbon template derived from the pyrolysis of the corn stover. The surface area as high as 397 m 2 /g, the pore volume of 0.4 cm 3 /g, as well as the majority pore diameters of 3−6 nm were achieved. CO and CO 2 were released during the reaction between vaporized SiO and graphite. The effect of temperature in the range of 1000 to 1700 °C was also studied, and the results point to a strong dependence between the process temperature and the yield and density of β-SiC. Also, the possible mechanism of synthesized β-SiC was proposed and confirmed with experimental results. This study provides a simple and an ecofriendly carbothermal reduction approach to produce nanoporous β-SiC with agriculture waste and sandstone, which could help establish the green economy in the US.

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Section: ■ Results and Discussionmentioning

confidence: 99%

Synthesis of Highly Nanoporous β-Silicon Carbide from Corn Stover and Sandstone

Wang

Gong

et al. 2020

ACS Sustainable Chem. Eng.

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“…Where, the manganese carbonate phase has been reported to be possibly formed during reaction for the intimate contact of MnO with CO 2 , leading to the detrimental catalytic behavior. [10] While, on the other hand the catalyst without Mn inclusion in Na-3Fe0.5Co shows the decrease of carbide peaks with the relative enhancement of Fe 3 O 4 Figure S6, resulting to the lower catalytic performance than that of Na- [17] 300 20 2 96.9 23.0 20.0 40.1 9.5 / Fe/CNF [41] 300 20 2 88.0 42.0 13.0 52.0 18.0 / FeBi/CNT [42] 350 [44] 320 20 1 85.0 48.0 22.7 39.4 29.7 / MnCr/HZ [45] 430 40 1 13 45.0 6.7 19.5 2.9 70.9 Fe 3 O 4 @MnO 2 /HZ [28] 320 [47] 350 40 1 18.3 49 1.5 16.9 27.9 53.6 FeMnKSiO 2 /HZ [48] 300 [49] 350 20 2 88.8 27.5 9.6 26.6 13.2 50.6 KFeMn/HZ [38] 320 [16] 310 3Fe2Mn0.5Co. Moreover, it can also be seen that C 5 + fraction has been escalated in liquid phase for both Na-3Fe2Mn2Co & Na-3Fe0.5Co catalyst that apparently indicating a higher fraction of liquid paraffins in C 5 + hydrocarbons being difficult to be aromatized on zeolite surface as compared to that of olefins in Na-3Fe2Mn0.5Co catalyst.…”

Section: Mechanistic Insights Of Bimetallic Ft Synthesis/aromatizatiomentioning

confidence: 97%

“…The addition of Mn as transition metal auxiliary in Na-3Fe 2 Mn catalyst, yielded majorly as Mn 3 O 4 phase with JCPDS 24-0734 at the diffraction peaks of 18.08°, 28.88°, 32.3°36.03°, 53.82°and 65.34°with some peaks of Fe 2 O 3 (Figure 1a, d) inferring that the dissolution of iron atom into the Mn 3 O 4 could impart an efficient interaction between Fe and Mn phase being attributed to the formation of solid solution as per our recent study. [17] It is well known that the specific difference in peak parameters of XRD pattern is the valuable indication for the doped structures possessing a lattice mismatch between the corresponding metal oxides due to different atomic radius of two different elements. [18] While, the effective inclusion of foreign elements into the lattice structure of host element may lead to the desired and expedient manipulation in electron density of the host element that could possibly enhance the generation of oxygen vacancies.…”

Section: Catalyst Characterization Of Calcined Samplesmentioning

confidence: 99%

Harnessing the Synergistic Interplay of Fischer‐Tropsch Synthesis (Fe‐Co) Bimetallic Oxides in Na‐FeMnCo/HZSM‐5 Composite Catalyst for Syngas Conversion to Aromatic Hydrocarbons

Nawaz

Saif

et al. 2021

ChemCatChem

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The efficient conversion of syngas to aromatic hydrocarbons (STA) has attracted attention in recent years for its extensive utilization in the energy and defense sectors. In current study, the alloying of two active FT synthesis metal components (FeÀ Co) was employed in Na-FeMnCo/HZSM-5 composite catalyst for STA process. Different calcination temperatures and Fe/Mn/Co molar ratios were modulated for harnessing the different Fe 2 O 3 /CoFe 2 O 4 /MnCo 2 O 4 structures that possessed divergent structural, reduction, carburization and catalytic behaviors to give Fe 3 O 4 /Fe x C/Co x C reactive species. Herein, the effective inclusion of Co and Mn into Fe brought about the expedient geometric and electronic modulations for providing the homogenously distributed CoFe 2 O 4 nanocrystals. This particular substitution of Fe played a vital role for tuning the density of oxygen vacancies, tailoring the reduction behavior of Fe-O x , giving the FeÀ Co alloy structure, and adjusting the adsorption capabilities of catalytic surface that mainly dictate the concentration of active Fe 5 C 2 phase. An escalated selectivity to olefinic intermediates and subsequent higher aromatics fractions (~55 %) thus was imparted with an inhibited CO 2 (21 %) generation by meliorating the different Fischer-Tropsch/ Aromatization reactions in stable CO conversion of~98 %.

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“…Unfortunately, this pathway is a two-step process and energy intensive, where carbon monoxide (CO) must be formed through utilization of the water−gas shift reaction and then reacted with hydrogen (H 2 ) gas at high temperatures and pressures to get final usable products. 9,10 Therefore, there is an urgent need to revolutionize and update the energy industry, and this update could come from the electrochemical CO 2 RR to form value-added fuels and chemicals. The primary work that originally introduced CO 2 RR to the world was done by Hori in the 1980s, where he exhibited the capabilities of different pure metal catalysts to reduce CO 2 , which opened the door for large amounts of research to be conducted on CO 2 RR.…”

Section: Introductionmentioning

confidence: 99%

“…According to an assessment by the U.S. Energy Information Administration, unless the current energy structure is changed, CO 2 levels in the atmosphere will continue to increase. , On the industrial scale, currently the Fischer–Tropsch synthesis pathway is the main process of producing carbonaceous feedstock chemicals. Unfortunately, this pathway is a two-step process and energy intensive, where carbon monoxide (CO) must be formed through utilization of the water–gas shift reaction and then reacted with hydrogen (H 2 ) gas at high temperatures and pressures to get final usable products. , Therefore, there is an urgent need to revolutionize and update the energy industry, and this update could come from the electrochemical CO 2 RR to form value-added fuels and chemicals.…”

Section: Introductionmentioning

confidence: 99%

Progress and Challenges of Carbon Dioxide Reduction Reaction on Transition Metal Based Electrocatalysts

Johnson

Qiao

Djire

2021

ACS Appl. Energy Mater.

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Carbon dioxide (CO 2 ) is one of the main causes of global warming, with the burning of fossil fuels being the main source of anthropogenic CO 2 . For this reason, the capture and reduction of CO 2 to value-added chemicals powered by renewable energy sources is on the forefront of electrocatalyst and photocatalyst research. The choice of catalyst, support structure, and electrolyte are the main factors that impact the electrochemical CO 2 reduction reaction (CO 2 RR) to value-added chemicals and fuels. Therefore, an understanding of each of these factors must be gained prior to large-scale applications. In this review, we provide an overview on the field of CO 2 RR electrocatalysis based on nonprecious transition metal based catalysts with a focus on their design, synthesis, characterization, and mechanisms of CO 2 RR. Special attention is paid to advanced catalysts design incorporating two-dimensional (2D) transition metal carbide and nitride materials, and state-of-the-art in situ/operando spectroelectrochemical techniques. Lastly, remaining grand challenges in the field and outlooks for future research and opportunities are provided.

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Effect of copper on highly effective Fe-Mn based catalysts during production of light olefins via Fischer-Tropsch process with low CO2 emission

Cited by 76 publications

References 50 publications

Synthesis of Highly Nanoporous β-Silicon Carbide from Corn Stover and Sandstone

Synthesis of Highly Nanoporous β-Silicon Carbide from Corn Stover and Sandstone

Harnessing the Synergistic Interplay of Fischer‐Tropsch Synthesis (Fe‐Co) Bimetallic Oxides in Na‐FeMnCo/HZSM‐5 Composite Catalyst for Syngas Conversion to Aromatic Hydrocarbons

Progress and Challenges of Carbon Dioxide Reduction Reaction on Transition Metal Based Electrocatalysts

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