Fischer-Tropsch synthesis over iron catalysts with corncob-derived promoters

来源 :能源化学 | 被引量 : 0次 | 上传用户:w15002554773
下载到本地 , 更方便阅读
声明 : 本文档内容版权归属内容提供方 , 如果您对本文有版权争议 , 可与客服联系进行内容授权或下架
论文部分内容阅读
A sustainable strategy for Fischer-Tropsch iron catalysts is successfully achieved by embedding of synergistic promoters from a renewable resource,corncob.The iron-based catalysts,named as “corncob-driven”catalysts,are composed of iron species supported on carbon as primary active components and various minerals (K,Mg,Ca,and Si,etc.) as promoters.The corncob-driven catalysts are facilely synthesized by a one-pot hydrothermal treatment under mild conditions.The characterization results indicate that the formation of iron carbides from humboldtine is clearly enhanced and the morphology of catalyst particles tends to be more regular microspheres after adding corncob.It is observed that the optimized corncob-driven catalyst exhibits a higher conversion than without promoters\' catalyst in Fischer-Tropsch synthesis (ca.73%vs.ca.49%).More importantly,a synergistic effect exists in multiple promoters from corncob that can enhance heavy hydrocarbons selectivity and lower CO2 selectivity,obviously different from the catalyst with promoters from chemicals.The proposed synthesis route of corncob-driven catalysts provides new strategies for the utilization of renewable resources and elimination of environmental pollutants from chemical promoters.
其他文献
In this paper In2O3 nanoshells have been synthesized via a facile hydrothermal approach.The nanoshells can be completely cracked into pony-size nanocubes by annealing,which are then used as a support of Pt catalyst for methanol and ethanol electrocatalyti
Lithium-sulfur (Li-S) batteries have been recognized as promising substitutes for current energy-storage technologies owing to their exceptional advantages in very high-energy density and excellent material sustainability.The cathode with high sulfur area
One-dimensional nano-structured materials have attracted attention due to its unique properties afforded such as the across-linked structures and large aspect ratios. In this work, one-dimensional CoSe@N-doped carbon nanofibers (CoSe@NC NFs) are successfu
One of the major challenges associated with fuel cells is the design of highly efficient electrocatalysts to reduce the high overpotential of the oxygen reduction reaction (ORR).Here we report Polyaniline (PANI) based micro/nanomaterials with or without t
Organometal halide perovskite based solar cells have emerged as one of the most promising candidates for low-cost and high-efficiency solar cell technologies.Here a Vapor Transfer Method (VTM) is used to fabricate high quality perovskite thin films in a b
2D nanosheets such as graphene,silicene,phosphorene,metal dichalcogenides and MXenes are emerging and promising for lithium storage due to their ultrathin nature and corresponding chemical/physical properties.However,the serious restacking and aggregation
Lithium sulfide (Li2S) provides a promising route for lithium storage due to high theoretical specific capacity (1166 mAh g-1).The electrochemical performance of Li2S can be significantly enhanced by forming Li2S-carbon composites with the introduction of
Development of efficient and promising bifunctional electrocatalysts for oxygen reduction and evolution reactions is desirable.Herein,cobalt nanoparticles embedded in nitrogen and sulfur co-doped carbon nanotubes (Co@NSCNT) were prepared by a facile pyrol
Wormholelike mesoporous carbons (WMCs) with three different pore diameters (Dp),namely WMC-F7 (Dp =8.5 nm),WMC-F30 (Dp=4.4nm),and WMC-F0 (Dp=3.1 nm) are prepared via a modified sol-gel process.Then PtRu nanoparticles with the panicle size (dpt) of ~3.2 nm
Ni-based anodes of SOFCs are susceptible to coking,which greatly limits practical application of direct methane-based fuels.An indirect internal reformer is an effective way to convert methane-based fuels into syngas before they reach anode.In this work,c