The Experts below are selected from a list of 129 Experts worldwide ranked by ideXlab platform

Satoshi Hirata - One of the best experts on this subject based on the ideXlab platform.

  • Effects of Catalyst Preparation on Hydrocarbon Product Distribution in Hydrocracking of the Fischer-Tropsch Product with Low Pt-Loaded Catalysts
    Catalysts, 2015
    Co-Authors: Toshiaki Hanaoka, Tomohisa Miyazawa, Katsuya Shimura, Satoshi Hirata
    Abstract:

    For the effective Production of hydrocarbon liquid fuel in the hydrocracking of the Fischer-Tropsch (FT) Product, the catalytic performance of Pt-loaded catalysts with low Pt content was investigated using an autoclave at 250 °C, an initial H2 pressure of 0.5 MPa, and a reaction time of 1 h. A screening study using Pt-loaded catalysts with a Pt content of 0.1 wt. % indicated that zeolite supports were more favorable for jet fuel (carbon numbers 9–15) Production than amorphous oxide supports. The small particle size of the supported Pt particles and the high amount of medium acid sites for the supports led to higher performance of the Pt-loaded zeolite catalysts. In the hydrocracking reaction over Pt catalysts using the zeolite support with the high amount of medium acid sites, the yields of the corresponding jet fuel at 0.02 and 0.1 wt. % were almost the same. Pt-loaded catalysts with a Pt content of 0.02 wt. % were prepared using water-in-oil (w/o) microemulsions and their particle size was controlled between 1.0 and 2.6 nm. While the yield of the corresponding jet fuel was independent of Pt particle size, smaller Pt particles typically promoted the Production of lighter hydrocarbons.

  • Jet fuel synthesis from Fischer–Tropsch Product under mild hydrocracking conditions using Pt-loaded catalysts
    Chemical Engineering Journal, 2015
    Co-Authors: Toshiaki Hanaoka, Tomohisa Miyazawa, Katsuya Shimura, Satoshi Hirata
    Abstract:

    Abstract The development of effective Pt-loaded catalysts for high jet fuel yield was investigated in hydrocracking step in the proposed conversion process from biomass to jet fuel. Screening studies of Pt-loaded catalyst supports were performed using an autoclave in hydrocracking of n-C28H58 and n-C36H74 as model compounds over ten different supports loaded with Pt (Pt content: 0.5 wt%). The Pt-loaded β-type zeolite catalyst exhibited a high corresponding jet fuel yield using both feedstocks. The effect of the reaction temperature, reaction pressure, and Pt content on the hydrocracking behavior was studied in hydrocracking of n-C36H74 over Pt-loaded β-type zeolite catalyst. The corresponding jet fuel yield was maximized at 250–350 °C, and 0.9–1.4 MPa, and 0.1–1.0 wt% Pt content. The liquid Product with carbon numbers 5–68 was obtained as Fischer–Tropsch (FT) Product through the operation of a bench-scale biomass-to-liquid (BTL) plant. The effect of the reaction temperature and reaction pressure on the hydrocracking behavior was investigated in hydrocracking of the FT Product over Pt-loaded β-type zeolite catalyst (Pt content: 0.1 wt%). The corresponding jet fuel yield was the maximum value (21.5%) at 250 °C and 1.5 MPa.

  • Jet fuel synthesis in hydrocracking of Fischer–Tropsch Product over Pt-loaded zeolite catalysts prepared using microemulsions
    Fuel Processing Technology, 2015
    Co-Authors: Toshiaki Hanaoka, Tomohisa Miyazawa, Katsuya Shimura, Satoshi Hirata
    Abstract:

    Abstract In order to design an economical biomass-to-liquid (BTL) process, effective jet fuel Production from Fischer–Tropsch (FT) Product was investigated under the following conditions: temperature 250 °C, initial H2 pressure 1 MPa, and reaction time 1 h, using Pt-loaded zeolite catalysts with a low Pt content (0.1 wt.%). First, a screening study was performed to determine the hydrocracking performance on n-C28H58 and n-C36H74 of various Pt-loaded zeolite catalysts prepared using an impregnation method. Pt-loaded β-type zeolite catalysts with Pt particle sizes of 2.3–13.1 nm and higher acid amounts led to high jet fuel yields. Pt-loaded β-type zeolite catalysts with the different loaded Pt particle sizes were prepared using microemulsions. The effect of Pt particle size on hydrocracking behaviors of the FT Product was investigated using Pt-loaded β-type zeolite catalysts with Pt particle sizes of 2.3–14.8 nm with constant Pt content, acid amount, and pore parameters. Under the experimental conditions employed for the present study, the maximum jet fuel yield was 29.1 C-mol% with Pt particle size 7.6 nm.

  • Preparation for Pt-Loaded Zeolite Catalysts Using w/o Microemulsion and Their Hydrocracking Behaviors on Fischer-Tropsch Product
    MDPI AG, 2015
    Co-Authors: Toshiaki Hanaoka, Tomohisa Miyazawa, Katsuya Shimura, Satoshi Hirata
    Abstract:

    Pt-loaded β-type zeolite catalysts with constant Pt content (0.11 wt.%) and similar pore structure were prepared using a water-in-oil (w/o) microemulsion. The effect of Pt particle synthesis conditions using microemulsion (a type of Pt complex-forming agents and the molar ratio of complex-forming agent to Pt4+) on loaded Pt particle size was investigated. The Pt particle size of the Pt catalyst using tetraethylammonium chloride (TEAC) as a complex-forming agent with the molar TEAC/Pt ratio 10 was the minimum value (3.8 nm), and was much smaller than that (6.7 nm) prepared by the impregnation method. The utilization of the complex-forming agent of which hydrophobic groups occupied a small volume and the appropriate complex-forming agent/Pt ratio were favorable for synthesis of small Pt particles. The effect of loaded Pt particle size on the hydrocracking of the Fischer-Tropsch (FT) Product was investigated using the Pt-loaded zeolite catalysts at 250 °C with an initial H2 pressure of 0.5 MPa, and reaction time of 1 h. The Pt catalyst with a Pt particle size of 4.2 nm prepared using the microemulsion exhibited the maximum corresponding jet fuel yield (30.0%), which was higher than that of the impregnated catalyst

Sudip Maity - One of the best experts on this subject based on the ideXlab platform.

  • Low CO2 selective iron based Fischer–Tropsch catalysts for coal based polygeneration
    Applied Energy, 2013
    Co-Authors: Olusola O. James, Biswajit Chowdhury, Aline Auroux, Sudip Maity
    Abstract:

    Integration of electricity generation with liquid fuel Production is a viable strategy towards maximising coal utilisation and hydrocarbon supply. Herein we report on catalyst design for process intensification and optimisation of electricity and hydrocarbon Production from coal. Low temperature Fischer–Tropsch synthesis with Fe–Zn (Zn/Fe ratio 0.25) based catalysts using H2-deficient syngas feed displayed unprecedented low CO2 selectivity. Promotion of the Fe–Zn with Cu and Ca afforded Fischer–Tropsch Product distributions that are typical of high temperature Fischer–Tropsch synthesis. The present report provides foundation for design of iron based catalyst that can compete with cobalt based once in terms of low CO2 selectivity.

  • Low CO2 selective iron based Fischer-Tropsch catalysts for coal based polygeneration
    Applied Energy, 2013
    Co-Authors: Olusola O. James, Biswajit Chowdhury, Aline Auroux, Sudip Maity
    Abstract:

    Integration of electricity generation with liquid fuel Production is a viable strategy towards maximising coal utilisation and hydrocarbon supply. Herein we report on catalyst design for process intensification and optimisation of electricity and hydrocarbon Production from coal. Low temperature Fischer-Tropsch synthesis with Fe-Zn (Zn/Fe ratio 0.25) based catalysts using H-2-deficient syngas feed displayed unprecedented low CO2 selectivity. Promotion of the Fe-Zn with Cu and Ca afforded Fischer-Tropsch Product distributions that are typical of high temperature Fischer-Tropsch synthesis. The present report provides foundation for design of iron based catalyst that can compete with cobalt based once in terms of low CO2 selectivity. (C) 2013 Elsevier Ltd. All rights reserved.

Toshiaki Hanaoka - One of the best experts on this subject based on the ideXlab platform.

  • Effects of Catalyst Preparation on Hydrocarbon Product Distribution in Hydrocracking of the Fischer-Tropsch Product with Low Pt-Loaded Catalysts
    Catalysts, 2015
    Co-Authors: Toshiaki Hanaoka, Tomohisa Miyazawa, Katsuya Shimura, Satoshi Hirata
    Abstract:

    For the effective Production of hydrocarbon liquid fuel in the hydrocracking of the Fischer-Tropsch (FT) Product, the catalytic performance of Pt-loaded catalysts with low Pt content was investigated using an autoclave at 250 °C, an initial H2 pressure of 0.5 MPa, and a reaction time of 1 h. A screening study using Pt-loaded catalysts with a Pt content of 0.1 wt. % indicated that zeolite supports were more favorable for jet fuel (carbon numbers 9–15) Production than amorphous oxide supports. The small particle size of the supported Pt particles and the high amount of medium acid sites for the supports led to higher performance of the Pt-loaded zeolite catalysts. In the hydrocracking reaction over Pt catalysts using the zeolite support with the high amount of medium acid sites, the yields of the corresponding jet fuel at 0.02 and 0.1 wt. % were almost the same. Pt-loaded catalysts with a Pt content of 0.02 wt. % were prepared using water-in-oil (w/o) microemulsions and their particle size was controlled between 1.0 and 2.6 nm. While the yield of the corresponding jet fuel was independent of Pt particle size, smaller Pt particles typically promoted the Production of lighter hydrocarbons.

  • Jet fuel synthesis from Fischer–Tropsch Product under mild hydrocracking conditions using Pt-loaded catalysts
    Chemical Engineering Journal, 2015
    Co-Authors: Toshiaki Hanaoka, Tomohisa Miyazawa, Katsuya Shimura, Satoshi Hirata
    Abstract:

    Abstract The development of effective Pt-loaded catalysts for high jet fuel yield was investigated in hydrocracking step in the proposed conversion process from biomass to jet fuel. Screening studies of Pt-loaded catalyst supports were performed using an autoclave in hydrocracking of n-C28H58 and n-C36H74 as model compounds over ten different supports loaded with Pt (Pt content: 0.5 wt%). The Pt-loaded β-type zeolite catalyst exhibited a high corresponding jet fuel yield using both feedstocks. The effect of the reaction temperature, reaction pressure, and Pt content on the hydrocracking behavior was studied in hydrocracking of n-C36H74 over Pt-loaded β-type zeolite catalyst. The corresponding jet fuel yield was maximized at 250–350 °C, and 0.9–1.4 MPa, and 0.1–1.0 wt% Pt content. The liquid Product with carbon numbers 5–68 was obtained as Fischer–Tropsch (FT) Product through the operation of a bench-scale biomass-to-liquid (BTL) plant. The effect of the reaction temperature and reaction pressure on the hydrocracking behavior was investigated in hydrocracking of the FT Product over Pt-loaded β-type zeolite catalyst (Pt content: 0.1 wt%). The corresponding jet fuel yield was the maximum value (21.5%) at 250 °C and 1.5 MPa.

  • Jet fuel synthesis in hydrocracking of Fischer–Tropsch Product over Pt-loaded zeolite catalysts prepared using microemulsions
    Fuel Processing Technology, 2015
    Co-Authors: Toshiaki Hanaoka, Tomohisa Miyazawa, Katsuya Shimura, Satoshi Hirata
    Abstract:

    Abstract In order to design an economical biomass-to-liquid (BTL) process, effective jet fuel Production from Fischer–Tropsch (FT) Product was investigated under the following conditions: temperature 250 °C, initial H2 pressure 1 MPa, and reaction time 1 h, using Pt-loaded zeolite catalysts with a low Pt content (0.1 wt.%). First, a screening study was performed to determine the hydrocracking performance on n-C28H58 and n-C36H74 of various Pt-loaded zeolite catalysts prepared using an impregnation method. Pt-loaded β-type zeolite catalysts with Pt particle sizes of 2.3–13.1 nm and higher acid amounts led to high jet fuel yields. Pt-loaded β-type zeolite catalysts with the different loaded Pt particle sizes were prepared using microemulsions. The effect of Pt particle size on hydrocracking behaviors of the FT Product was investigated using Pt-loaded β-type zeolite catalysts with Pt particle sizes of 2.3–14.8 nm with constant Pt content, acid amount, and pore parameters. Under the experimental conditions employed for the present study, the maximum jet fuel yield was 29.1 C-mol% with Pt particle size 7.6 nm.

  • Preparation for Pt-Loaded Zeolite Catalysts Using w/o Microemulsion and Their Hydrocracking Behaviors on Fischer-Tropsch Product
    MDPI AG, 2015
    Co-Authors: Toshiaki Hanaoka, Tomohisa Miyazawa, Katsuya Shimura, Satoshi Hirata
    Abstract:

    Pt-loaded β-type zeolite catalysts with constant Pt content (0.11 wt.%) and similar pore structure were prepared using a water-in-oil (w/o) microemulsion. The effect of Pt particle synthesis conditions using microemulsion (a type of Pt complex-forming agents and the molar ratio of complex-forming agent to Pt4+) on loaded Pt particle size was investigated. The Pt particle size of the Pt catalyst using tetraethylammonium chloride (TEAC) as a complex-forming agent with the molar TEAC/Pt ratio 10 was the minimum value (3.8 nm), and was much smaller than that (6.7 nm) prepared by the impregnation method. The utilization of the complex-forming agent of which hydrophobic groups occupied a small volume and the appropriate complex-forming agent/Pt ratio were favorable for synthesis of small Pt particles. The effect of loaded Pt particle size on the hydrocracking of the Fischer-Tropsch (FT) Product was investigated using the Pt-loaded zeolite catalysts at 250 °C with an initial H2 pressure of 0.5 MPa, and reaction time of 1 h. The Pt catalyst with a Pt particle size of 4.2 nm prepared using the microemulsion exhibited the maximum corresponding jet fuel yield (30.0%), which was higher than that of the impregnated catalyst

Michael Claeys - One of the best experts on this subject based on the ideXlab platform.

  • Water-induced deactivation of cobalt-based Fischer–Tropsch catalysts
    Nature Catalysis, 2020
    Co-Authors: Moritz Wolf, Nico Fischer, Michael Claeys
    Abstract:

    The Fischer–Tropsch Product, water, is regularly hypothesized to be the driving force for catalyst deactivation. Cobalt nanoparticles may be oxidized to CoO, form mixed-metal oxides with supports, or sinter to larger particles. This Comment discusses the feasibility of these deactivation pathways, highlighting the importance of in situ characterization.

  • Capturing the interconnectivity of water-induced oxidation and sintering of cobalt nanoparticles during the Fischer-Tropsch synthesis in situ
    Journal of Catalysis, 2019
    Co-Authors: Moritz Wolf, Nico Fischer, Michael Claeys
    Abstract:

    Abstract Supported nano-sized metal crystallites as catalysts in the Fischer-Tropsch synthesis have become a major research focus due to their high mass specific surface area and resulting lower cost. Such small supported cobalt crystallites have been reported to show a very different resistance with regard to deactivation compared to larger cobalt particles. The Fischer-Tropsch Product water is reported to have a severe effect on the deactivation of cobalt-based Fischer-Tropsch catalysts. Compared to other water-induced deactivation mechanisms, hydrothermal sintering of cobalt nanoparticles is fairly well established in literature. A previously hypothesised interconnection between oxidation of cobalt nanoparticles and hydrothermal sintering has – for the first time – been captured in situ in the presented study. High concentrations of water induce oxidation of the cobalt nanoparticles increasing their mobility and resulting in crystallite growth via particle migration and coalescence whilst in the oxidised state. A well-defined model catalyst comprising highly dispersed cobalt nanoparticles on a relatively inert exfoliated graphite support in combination with an in situ magnetometer allowed for these observations, which resulted in irreversible deactivation of the catalyst.

  • Water-Induced Formation of Cobalt-Support Compounds under Simulated High Conversion Fischer–Tropsch Environment
    2019
    Co-Authors: Moritz Wolf, Nico Fischer, Emma K. Gibson, Ezra J. Olivier, Jan H. Neethling, Richard C. A. Catlow, Michael Claeys
    Abstract:

    Herein we present a comparative study on the water-induced formation of metal–support compounds from metallic cobalt in a simulated high conversion Fischer–Tropsch environment. Literature on the deactivation of supported cobalt catalysts via oxidation to cobalt­(II) oxide or cobalt-support compounds is contradictory due to a lack of use in suitable model catalysts and insufficient direct characterization of the metallic cobalt phase under reaction conditions. The particular carrier materials stabilize the active cobalt nanoparticles, but also dictate the likelihood of the formation of nonactive cobalt-support compounds. In this study, well-defined cobalt nanoparticles of 5 nm were deposited on alumina, silica, and three titania carriers. The stability of the reduced nanoparticles against water-rich H2 atmospheres during exposure to simulated high Fischer–Tropsch conversion levels was monitored in an in situ magnetometer. Co/SiO2 was shown to be the most stable model catalyst, while various Co/TiO2 model systems readily formed large amounts of cobalt-support compounds at low ratios of the Fischer–Tropsch Product H2O to reactant H2 or even during the preceding reduction of the oxidic precursor. Co/Al2O3 displayed a surprisingly high stability at industrially relevant conditions, in contradiction to thermodynamic predictions. However, cobalt aluminate forms at increased concentrations of water. The existence of hard-to-reduce metal–support compounds in the spent catalysts was confirmed and characterized by means of X-ray absorption near edge structure spectroscopy and high-resolution scanning transmission electron microscopy of the exposed and passivated model catalysts

  • Kinetic modelling of Fischer–Tropsch Product distributions
    Applied Catalysis A-general, 1999
    Co-Authors: Hans Schulz, Michael Claeys
    Abstract:

    Abstract Starting from the idea of Fischer–Tropsch (FT) synthesis as an ideal polymerisation reaction it is easily realised, that Product olefins undergo secondary reactions and thereby modify the Product distribution. This generally leads to chain length dependencies of certain olefin reaction possibilities, which are again suited to serve as a characteristic feature for the kind of olefin conversion. By extending an existing model and accounting for olefin readsorption, incorporation, hydrogenation and isomerisation via double bond shift and the chain length dependence of Product solubilities, typical deviations from ideal distributions can be simulated and experimentally observed data with cobalt and iron catalysts can be satisfactorily described, suggesting the correctness of the assumptions made. Furthermore, other existing models dealing with the same issue are briefly discussed in this paper.

  • Transient initial kinetic regimes of Fischer–Tropsch synthesis
    Applied Catalysis A-general, 1999
    Co-Authors: Hans Schulz, Michael Claeys, Georg Schaub, Thomas Riedel
    Abstract:

    Transient kinetic regimes of Fischer–Tropsch (FT) synthesis with a potassium-promoted iron catalyst have been observed and characterized by time-resolved conversion and selectivity studies using H2/CO and a H2/CO2 synthesis gases. Up to six episodes relating to catalyst transformations/reconstructions could be distinguished. Amazingly, with the H2/CO2 synthesis gas a Fischer–Tropsch Product of nearly the same composition as that with the H2/CO synthesis gas was finally obtained at the steady state. However, the transient episodes lasted for a long time. Selectivity has been related to steps of elemental reactions by use of a kinetic model. As intrinsic FT feature, the principle of selective inhibition is established from the detailed selectivity results. Spatial constraints at the FT sites appear also to control selectivity. The iron catalyst exhibits fundamental differences in how generating FT sites, as compared with cobalt catalysts. FT sites on iron are stable, whereas FT sites on cobalt are of dynamic nature.

Tomohisa Miyazawa - One of the best experts on this subject based on the ideXlab platform.

  • Effects of Catalyst Preparation on Hydrocarbon Product Distribution in Hydrocracking of the Fischer-Tropsch Product with Low Pt-Loaded Catalysts
    Catalysts, 2015
    Co-Authors: Toshiaki Hanaoka, Tomohisa Miyazawa, Katsuya Shimura, Satoshi Hirata
    Abstract:

    For the effective Production of hydrocarbon liquid fuel in the hydrocracking of the Fischer-Tropsch (FT) Product, the catalytic performance of Pt-loaded catalysts with low Pt content was investigated using an autoclave at 250 °C, an initial H2 pressure of 0.5 MPa, and a reaction time of 1 h. A screening study using Pt-loaded catalysts with a Pt content of 0.1 wt. % indicated that zeolite supports were more favorable for jet fuel (carbon numbers 9–15) Production than amorphous oxide supports. The small particle size of the supported Pt particles and the high amount of medium acid sites for the supports led to higher performance of the Pt-loaded zeolite catalysts. In the hydrocracking reaction over Pt catalysts using the zeolite support with the high amount of medium acid sites, the yields of the corresponding jet fuel at 0.02 and 0.1 wt. % were almost the same. Pt-loaded catalysts with a Pt content of 0.02 wt. % were prepared using water-in-oil (w/o) microemulsions and their particle size was controlled between 1.0 and 2.6 nm. While the yield of the corresponding jet fuel was independent of Pt particle size, smaller Pt particles typically promoted the Production of lighter hydrocarbons.

  • Jet fuel synthesis from Fischer–Tropsch Product under mild hydrocracking conditions using Pt-loaded catalysts
    Chemical Engineering Journal, 2015
    Co-Authors: Toshiaki Hanaoka, Tomohisa Miyazawa, Katsuya Shimura, Satoshi Hirata
    Abstract:

    Abstract The development of effective Pt-loaded catalysts for high jet fuel yield was investigated in hydrocracking step in the proposed conversion process from biomass to jet fuel. Screening studies of Pt-loaded catalyst supports were performed using an autoclave in hydrocracking of n-C28H58 and n-C36H74 as model compounds over ten different supports loaded with Pt (Pt content: 0.5 wt%). The Pt-loaded β-type zeolite catalyst exhibited a high corresponding jet fuel yield using both feedstocks. The effect of the reaction temperature, reaction pressure, and Pt content on the hydrocracking behavior was studied in hydrocracking of n-C36H74 over Pt-loaded β-type zeolite catalyst. The corresponding jet fuel yield was maximized at 250–350 °C, and 0.9–1.4 MPa, and 0.1–1.0 wt% Pt content. The liquid Product with carbon numbers 5–68 was obtained as Fischer–Tropsch (FT) Product through the operation of a bench-scale biomass-to-liquid (BTL) plant. The effect of the reaction temperature and reaction pressure on the hydrocracking behavior was investigated in hydrocracking of the FT Product over Pt-loaded β-type zeolite catalyst (Pt content: 0.1 wt%). The corresponding jet fuel yield was the maximum value (21.5%) at 250 °C and 1.5 MPa.

  • Jet fuel synthesis in hydrocracking of Fischer–Tropsch Product over Pt-loaded zeolite catalysts prepared using microemulsions
    Fuel Processing Technology, 2015
    Co-Authors: Toshiaki Hanaoka, Tomohisa Miyazawa, Katsuya Shimura, Satoshi Hirata
    Abstract:

    Abstract In order to design an economical biomass-to-liquid (BTL) process, effective jet fuel Production from Fischer–Tropsch (FT) Product was investigated under the following conditions: temperature 250 °C, initial H2 pressure 1 MPa, and reaction time 1 h, using Pt-loaded zeolite catalysts with a low Pt content (0.1 wt.%). First, a screening study was performed to determine the hydrocracking performance on n-C28H58 and n-C36H74 of various Pt-loaded zeolite catalysts prepared using an impregnation method. Pt-loaded β-type zeolite catalysts with Pt particle sizes of 2.3–13.1 nm and higher acid amounts led to high jet fuel yields. Pt-loaded β-type zeolite catalysts with the different loaded Pt particle sizes were prepared using microemulsions. The effect of Pt particle size on hydrocracking behaviors of the FT Product was investigated using Pt-loaded β-type zeolite catalysts with Pt particle sizes of 2.3–14.8 nm with constant Pt content, acid amount, and pore parameters. Under the experimental conditions employed for the present study, the maximum jet fuel yield was 29.1 C-mol% with Pt particle size 7.6 nm.

  • Preparation for Pt-Loaded Zeolite Catalysts Using w/o Microemulsion and Their Hydrocracking Behaviors on Fischer-Tropsch Product
    MDPI AG, 2015
    Co-Authors: Toshiaki Hanaoka, Tomohisa Miyazawa, Katsuya Shimura, Satoshi Hirata
    Abstract:

    Pt-loaded β-type zeolite catalysts with constant Pt content (0.11 wt.%) and similar pore structure were prepared using a water-in-oil (w/o) microemulsion. The effect of Pt particle synthesis conditions using microemulsion (a type of Pt complex-forming agents and the molar ratio of complex-forming agent to Pt4+) on loaded Pt particle size was investigated. The Pt particle size of the Pt catalyst using tetraethylammonium chloride (TEAC) as a complex-forming agent with the molar TEAC/Pt ratio 10 was the minimum value (3.8 nm), and was much smaller than that (6.7 nm) prepared by the impregnation method. The utilization of the complex-forming agent of which hydrophobic groups occupied a small volume and the appropriate complex-forming agent/Pt ratio were favorable for synthesis of small Pt particles. The effect of loaded Pt particle size on the hydrocracking of the Fischer-Tropsch (FT) Product was investigated using the Pt-loaded zeolite catalysts at 250 °C with an initial H2 pressure of 0.5 MPa, and reaction time of 1 h. The Pt catalyst with a Pt particle size of 4.2 nm prepared using the microemulsion exhibited the maximum corresponding jet fuel yield (30.0%), which was higher than that of the impregnated catalyst