Enhancing the light olefin selectivity of an iron-based Fischer–Tropsch synthesis catalyst by modification with CTAB

Zhu, Chuanxue; Liu, Yingxin; Huo, Chao; Liu, Huazhang

doi:10.1039/c8ra04622k

Cited by 10 publications

(4 citation statements)

References 45 publications

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“…In addition, the peak intensity of Fe 2p 3/2 and Fe 2p 1/2 of the FeO x NRs films is lower than that observed in Fe 2 O 3 , indicating that the number of iron atoms on the surface of FeO x NRs films is low. 57,58 Fig. 3b displays the XPS spectra respectively for O 1s regions of FeOOH/FTO (black), Fe 2 O 3 /FTO, and FTO/ FeO x (red).…”

Section: Resultsmentioning

confidence: 99%

Enhanced electrocatalytic oxygen redox reactions of iron oxide nanorod films by combining oxygen vacancy formation and cobalt doping

Omar ben Gubaer,

Shaddad,

Arunachalam

et al. 2023

RSC Adv.

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Section: Resultsmentioning

confidence: 99%

Enhanced electrocatalytic oxygen redox reactions of iron oxide nanorod films by combining oxygen vacancy formation and cobalt doping

Omar ben Gubaer,

Shaddad,

Arunachalam

et al. 2023

RSC Adv.

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“…The peaks at 724.27 and 726.56 eV can be assigned to 2p 1/2 peaks of Fe 2+ and Fe 3+ , respectively [38]. The peak at 718.78 eV belongs to the Fe 3+ satellite peak [39]. According to the XPS spectra of Mn 2p and Fe 2p, nitrogen doping has negligible influence on the generation of MnFe 2 O 4 .…”

Section: Characterization Of Catalystsmentioning

confidence: 96%

Electrochemical/Peroxymonosulfate/NrGO-MnFe2O4 for Advanced Treatment of Landfill Leachate Nanofiltration Concentrate

Wang

et al. 2021

Water

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A simple one-pot method was used to successfully embed manganese ferrite (MnFe2O4) nanoparticles on the nitrogen-doped reduced graphene oxide matrix (NrGO), which was used to activate peroxymonosulfate to treat the landfill leachate nanofiltration concentration (LLNC) with electrochemical enhancement. NrGO-MnFe2O4 and rGO-MnFe2O4 were characterized by various means. This indicates that nitrogen-doped could induce more graphene oxide (GO) spall and reduction to produce more active centers, and was favorable for uniformly loading MnFe2O4 particles. The comparison between electrochemical/peroxymonosulfate/NrGO-MnFe2O4 (EC/PMS/NrGO-MnFe2O4) system and different catalytic systems shows that electrochemical reaction, NrGO and MnFe2O4 can produce synergies, and the chemical oxygen demand (COD) removal rate of LLNC can reach 72.89% under the optimal conditions. The three-dimensional (3D-EEM) fluorescence spectrum shows that the system has a strong treatment effect on the macromolecules with intense fluorescence emission in LLNC, such as humic acid, and degrades into substances with weak or no fluorescence characteristics. Gas chromatography-mass spectrometry (GC-MS) indicates that the complex structure of refractory organic compounds can be simplified, while the simple small molecular organic compounds can be directly mineralized. The mechanism of catalytic degradation of the system was preliminarily discussed by the free radical quenching experiment. Therefore, the EC/PMS/NrGO-MnFe2O4 system has significant application potential in the treatment of refractory wastewater.

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“…The capacity of light olefins production by petroleum refinery can also reflect the development level of modern chemical industry. In addition to the conventional petroleum refinery, technologies had also been developed to produce light olefins using alternative feedstocks. , Methanol-to-olefins (MTO) is a significant approach for China to synthesize ethylene and propylene, because China is the largest producer of methanol. The most widely used technologies include the UOP/Hydro’s MTO technology and the DMTO technology by Dalian Institute of Chemical Physics of Chinese Academy of Sciences .…”

Section: Introductionmentioning

confidence: 99%

Performances and Net CO₂ Emission of Light Olefin Production Based on Biomass-to-Methanol and DMTO-II Technologies with CO₂ Capture and Sequestration

Yang

Zheng

et al. 2021

ACS Sustainable Chem. Eng.

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The rapid development of the coal-to-olefins industry in China provides a way to synthesize ethylene and propylene besides conventional petroleum refinery. However, its serious issues of fossil fuel and water consumption and CO2 emission threaten the sustainability of the natural environment as well as industrial society. This research extended the previous design of biomass gasification-based methanol synthesis to an efficient biomass-to-olefins (BTO) system for saving fossil fuel, reducing CO2 emission, and improving the sustainability of light olefins production. The BTO system was modeled using the ASPEN PLUS software. By incorporating the DMTO-II olefins synthesis as well as the dual-stage entrained flow biomass gasification, the ethylene/propylene yield was increased to 0.24 t/t dry biomass with an exergy efficiency of 58.4% for the system. The carbon uptake credit of biomass feedstock resulted in a negative net CO2 emission of −1.63 t/t olefins for this BTO system with a total cost of 5919 CNY/t olefins (i.e., 870 USD/t). The biomass price had great impact on the economic effectiveness of this BTO. It could only be acceptable when the unit biomass delivered cost was less than 600 CNY/t in consideration of BTO’s contribution to environmental benefits. The application of CO2 capture and sequestration to this BTO would further reduce the net CO2 emission and uncover an indirect approach to capture CO2 from the atmosphere. In that, 85% CO2 capture was the most cost-effective choice which led to an additional cost of 135 CNY/t CO2 (i.e., 20 USD/t). Yet, policy-related subsidies for CO2 abatement might offset this cost. In this circumstance, BTO could show great environmental benefits as well as acceptable economic performances.

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Enhancing the light olefin selectivity of an iron-based Fischer–Tropsch synthesis catalyst by modification with CTAB

Abstract: The effects of the surfactant hexadecyltrimethylammonium bromide (CTAB) on the catalytic performance of a manganese-promoted iron (FeMn) catalyst for the Fischer–Tropsch to olefin (FTO) reaction were investigated.

Cited by 10 publications

References 45 publications

Enhanced electrocatalytic oxygen redox reactions of iron oxide nanorod films by combining oxygen vacancy formation and cobalt doping

Enhanced electrocatalytic oxygen redox reactions of iron oxide nanorod films by combining oxygen vacancy formation and cobalt doping

Electrochemical/Peroxymonosulfate/NrGO-MnFe2O4 for Advanced Treatment of Landfill Leachate Nanofiltration Concentrate

Performances and Net CO₂ Emission of Light Olefin Production Based on Biomass-to-Methanol and DMTO-II Technologies with CO₂ Capture and Sequestration

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Enhancing the light olefin selectivity of an iron-based Fischer–Tropsch synthesis catalyst by modification with CTAB

Abstract: The effects of the surfactant hexadecyltrimethylammonium bromide (CTAB) on the catalytic performance of a manganese-promoted iron (FeMn) catalyst for the Fischer–Tropsch to olefin (FTO) reaction were investigated.

Cited by 10 publications

References 45 publications

Enhanced electrocatalytic oxygen redox reactions of iron oxide nanorod films by combining oxygen vacancy formation and cobalt doping

Enhanced electrocatalytic oxygen redox reactions of iron oxide nanorod films by combining oxygen vacancy formation and cobalt doping

Electrochemical/Peroxymonosulfate/NrGO-MnFe2O4 for Advanced Treatment of Landfill Leachate Nanofiltration Concentrate

Performances and Net CO2 Emission of Light Olefin Production Based on Biomass-to-Methanol and DMTO-II Technologies with CO2 Capture and Sequestration

Contact Info

Product

Resources

About

Performances and Net CO₂ Emission of Light Olefin Production Based on Biomass-to-Methanol and DMTO-II Technologies with CO₂ Capture and Sequestration