Articles with "lower olefins" as a keyword



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Monodisperse Nano‐Fe3O4 on α‐Al2O3 Catalysts for Fischer–Tropsch Synthesis to Lower Olefins: Promoter and Size Effects

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Published in 2017 at "ChemCatChem"

DOI: 10.1002/cctc.201700792

Abstract: The Fischer–Tropsch synthesis to lower olefins (FTO) is a desirable nonpetroleum‐based route to produce basic chemicals. A novel two‐step method was applied to synthesize iron‐based supported catalysts, which is to prepare nano‐Fe3O4 first by thermal… read more here.

Keywords: nano fe3o4; al2o3; lower olefins; size ... See more keywords
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Coprecipitated Fe/K/spinel nanocomposites for Fischer-Tropsch to lower olefins

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Published in 2018 at "Journal of Nanoparticle Research"

DOI: 10.1007/s11051-018-4304-5

Abstract: Literature about ZnAl2O4-supported iron Fischer-Tropsch to lower olefins (FTO) catalytic materials is sparse. Fe/K/spinel nanocomposites were synthesized by coprecipitation of Fe/Zn/Al nitrates with a precipitant as well as subsequent calcinations at 350 °C, followed by impregnation… read more here.

Keywords: tropsch lower; lower olefins; fischer tropsch; hydrocarbon distribution ... See more keywords
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Tunable Fe3O4 nanoparticles assembled porous microspheres as catalysts for Fischer-Tropsch synthesis to lower olefins

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Published in 2020 at "Catalysis Today"

DOI: 10.1016/j.cattod.2020.04.017

Abstract: Abstract Fe catalyzed Fischer-Tropsch synthesis to lower olefins (FTO) has been recognized as a structure-sensitive reaction. Nanostructure Fe-based catalysts can expose more active surface. But bulk nanostructure Fe catalysts without support interaction show easily sintered… read more here.

Keywords: synthesis lower; lower olefins; size; tropsch synthesis ... See more keywords
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Fischer-Tropsch Synthesis Steps into the Solar Era: Lower Olefins from Syngas

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Published in 2018 at "Chem"

DOI: 10.1016/j.chempr.2018.11.020

Abstract: In this issue of Chem, Ma, Wen, and co-workers have demonstrated a photo-driven Fischer-Tropsch to olefins (FTO) process over an oxygen-decorated Fe5C2 catalyst and achieved a very high olefin/paraffin ratio of 10.9 with high CO… read more here.

Keywords: solar era; lower olefins; synthesis steps; tropsch synthesis ... See more keywords
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Potassium-promoted magnesium ferrite on 3D porous graphene as highly efficient catalyst for CO hydrogenation to lower olefins

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Published in 2019 at "Journal of Catalysis"

DOI: 10.1016/j.jcat.2019.04.024

Abstract: Abstract Three-dimensional (3D) honeycomb-like structured graphene (HSG)-supported ternary K-promoted magnesium ferrite catalysts (K-MgFe/HSG) are prepared and evaluated in Fischer–Tropsch synthesis to the lower olefins (FTO). The catalysts bear interconnected mesoporous-macroporous framework of graphene nanosheets decorated… read more here.

Keywords: lower olefins; promoted magnesium; catalyst; graphene ... See more keywords
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Highly Selective Conversion of Carbon Dioxide to Lower Olefins

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Published in 2017 at "ACS Catalysis"

DOI: 10.1021/acscatal.7b03251

Abstract: Conversion of CO2 to value-added chemicals has been a long-standing objective, and direct hydrogenation of CO2 to lower olefins is highly desirable but still challenging. Herein, we report a selective conversion of CO2 to lower… read more here.

Keywords: conversion co2; lower olefins; conversion; selective conversion ... See more keywords
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Promoted cobalt metal catalysts suitable for the production of lower olefins from natural gas

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Published in 2019 at "Nature Communications"

DOI: 10.1038/s41467-018-08019-7

Abstract: Due to the surge of natural gas production, feedstocks for chemicals shift towards lighter hydrocarbons, particularly methane. The success of a Gas-to-Chemicals process via synthesis gas (CO and H2) depends on the ability of catalysts… read more here.

Keywords: methane carbon; production; lower olefins; gas ... See more keywords
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Direct transformation of syngas to lower olefins synthesis over hybrid Zn–Al2O3/SAPO-34 catalysts

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Published in 2018 at "New Journal of Chemistry"

DOI: 10.1039/c7nj04734g

Abstract: Syngas is a key platform chemical for the utilization of non-petroleum carbon resources. Therefore, great attention has been paid to syngas conversion to value added chemicals, such as lower olefins (C2–C=4), liquefied petroleum gas (LPG),… read more here.

Keywords: sapo catalysts; lower olefins; olefins selectivity; al2o3 sapo ... See more keywords
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Metal-Support Interactions in Fe-Cu-K Admixed with SAPO-34 Catalysts for Highly Selective Transformation of CO2 and H2 into Lower Olefins

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Published in 2021 at "Journal of Materials Chemistry A"

DOI: 10.1039/d1ta03327a

Abstract: Direct conversion of greenhouse gas carbon dioxide (CO2) into lower olefins (ethylene, propylene and butene) provides an appealing approach to tackle CO2 emission challenges. Admixed catalysts composed of metal/metal oxides... read more here.

Keywords: interactions admixed; metal support; lower olefins; support interactions ... See more keywords