Influence of combined alkaline treatment and Fe–Ti-loading modification on ZSM-5 zeolite and its catalytic performance in light olefin production

Hao, Kun; Shen, Baojian; Wang, Yandan; Ren, Jia

doi:10.1016/j.jiec.2012.03.019

Cited by 27 publications

(17 citation statements)

References 28 publications

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“…Metals loading do not change the crystal structure of HZSM-5 but reduce the intensity of each diffraction peak, same as reported in a previous study [23][24][25]29,30,38], because metals on the surface can decrease the scattering of X-rays. However, the main diffraction peak of CoO (ICDD:00-042-1300) was observed at 2 of 34.3 o , as shown in Figure 5(b).…”

Section: Methodssupporting

confidence: 83%

“…The previous authors stated that, the addition of a number of metals cause microporous surface area and micropore volume reduced. Both of these metals block microporous area and clog mesoporous area so that the total surface area less than before impregnated [23][24][25]29,30]. Nickel particles did play an important role for the high activity of Co-Ni/HZSM-5 catalyst.…”

Section: Methodsmentioning

confidence: 94%

“…The Co-Ni/HZSM-5 catalyst was prepared with procedure as reported by Marlinda et al [38]. The sample HZSM-5 was modified by designed concentration of Ni(NO3)2.6H2O and Co(NO3)2.6H2O aqueous solution with incipient wetness impregnation method [21][22][23][24][25]. In the sequential impregnation method, Ni first was loaded by the impregnation into HZSM-5 and the catalyst was kept overnight in a desiccator and dried at 120 o C for 12 h. Then, Co was loaded on Ni/HZSM-5 catalyst by the impregnation and the catalyst was kept overnight in a desiccator and dried at 120 o C for 12 h. The catalyst was calcined at 400 o C in air for 2 h and reduced in flowing H2 at 450 o C for 3, as reported in previous study [2,26].…”

Section: Methodsmentioning

confidence: 99%

“…On the other hand, the rise of reaction temperature was necessary considered because of the addition the reaction temperature can also lead to increase formation of coke. Hao et al [23] and SoteloBoyás et al [34] stated that thermal cracking of olefins through the route decarbonylation and ability of Brönsted acid of active site on HZSM-5 catalyst provided proton (H + ) can affect the rate of cycloparaffin and aromatic formation. Figure 9(a) shows that the most abundant hydrocarbon of aromatics and cycloparaffins are 6.16 area% and 13.88 area%, respectively at a temperature of 375 °C with Co-Ni(5%;1:1)/ HZSM-5 catalyst.…”

Section: Gc-ms Analysismentioning

confidence: 99%

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Hydrocracking of Cerbera manghas Oil with Co-Ni/HZSM-5 as Double Promoted Catalyst

Marlinda

Muttaqii

Gunardi

et al. 2017

Bull. Chem. React. Eng. Catal.

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The effect of various reaction temperature on the hydrocracking of Cerbera manghas oil to produce a paraffin-rich mixture of hydrocarbons with Co-Ni/HZSM-5 as doubled promoted catalyst were studied. The Co-Ni/HZSM-5 catalyst with various metal loading and metal ratio was prepared by incipient wetness impregnation. The catalysts were characterized by XRD, AAS, and N2 adsorption-desorption. Surface area, pore diameter, and pore volume of catalysts decreased with the increasing of metals loading. The hydrocracking process was conducted under initial hydrogen pressure in a batch reactor equipped with a mechanical stirrer. The reaction was carried out at a temperature of 300-375 o C for 2 h. Depending on the experimental condition, the reaction pressure changed between 10 bar and 15 bar. Several parameters were used to evaluate biofuel produced, including oxygen removal, hydrocarbon composition and gasoline/kerosene/diesel yields. Biofuel was analyzed by Fourier Transform Infrared Spectroscopic (FTIR) and gas chromatography-mass spectrometry (GC-MS). The composition of hydrocarbon compounds in liquid products was similar to the compounds in the gasoil sold in unit of Pertamina Gas Stations, namely pentadecane, hexadecane, heptadecane, octadecane, and nonadecane with different amounts for each biofuel produced at different reaction temperatures. However, isoparaffin compounds were not formed at all operating conditions. Pentadecane (n-C15) and heptadecane (n-C17) were the most abundant composition in gasoil when Co-Ni/HZSM-5 catalyst was used. Cerbera Manghas oil can be recommended as the source of non-edible vegetable oil to produce gasoil as an environmentally friendly transportation fuel.

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Section: Methodssupporting

confidence: 83%

Section: Methodsmentioning

confidence: 94%

Section: Methodsmentioning

confidence: 99%

Section: Gc-ms Analysismentioning

confidence: 99%

See 2 more Smart Citations

Hydrocracking of Cerbera manghas Oil with Co-Ni/HZSM-5 as Double Promoted Catalyst

Marlinda

Muttaqii

Gunardi

et al. 2017

Bull. Chem. React. Eng. Catal.

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“…Figure 4 (a) shows N2 adsorption and desorption isotherm as type I, as reported by the previous study [28,29]. The HZSM-5 shows a typical isotherm for microporous materials.…”

Section: Catalyst Characterizationsupporting

confidence: 67%

Zn-Mo/HZSM-5 Catalyst for Gasoil Range Hydrocarbon Production by Catalytic Hydrocracking of Ceiba pentandra oil

Mirzayanti

Kurniawansyah

Prayitno

et al. 2017

Bull. Chem. React. Eng. Catal.

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Biofuel from vegetable oil becomes one of the most suitable and logical alternatives to replace fossil fuel. The research focused on various metal ratio Zinc/Molybdenum/HZSM-5 (Zn-Mo/HZSM-5) catalyst to produce liquid hydrocarbon via catalytic hydrocracking of Ceiba penandra oil. The catalytic hydrocracking process has been applied in this study to crack Ceiba pentandra oil into a gasoil range hydrocarbon using Zn-Mo/HZSM-5 as a catalyst. The effect of various reaction temperature on the catalytic hydrocracking of Ceiba pentandra oil were studied. The Zn-Mo/HZSM-5 catalyst with metal ratio was prepared by incipient wetness impregnation method. This process used slurry pressure batch reactor with a mechanical stirrer. A series of experiments were carried out in the temperature range from 300-400 o C for 2 h at pressure between 10-15 bar. The conversion and selectivity were estimated. The liquid hydrocarbon product were identified to gasoline, kerosene, and gas oil. The results show that the use of Zn-Mo/HZSM-5 can produce gas oil as the most component in the product. Overall, the highest conversion and selectivity of gas oil range hydrocarbon was obtained when the ZnMo/HZSM-5 metal ratio was Zn(2.86 wt.%)-Mo(5.32 wt.%)/HZSM-5 and the name is Zn-Mo/HZSM-5_102. The highest conversion was obtained at 63.31 % and n-paraffin (gas oil range) selectivity was obtained at 90.75 % at a temperature of 400 o C. Ceiba pentandra oil can be recommended as the source of inedible vegetable oil to produce gasoil as an environmentally friendly transportation fuel.

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Photocatalytic water splitting with noble‐metal free cocatalysts for a comprehensive study of two nonidentical photoreactors designs

Vicentini

Manieri

Subtil

et al. 2020

Env Prog and Sustain Energy

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Here, the authors (i) discuss the most prominent co‐catalyst for H2 generation structured in the form of Me‐TiO2/MCM‐41 (Me: Ag, Co, Cu, Ni) based on structural, electronic, textural, morphological and optical characterization techniques, such as XRD, wide and small angle, XPS, Fourier‐transform infrared spectroscopy, scanning electron microscopy, B.E.T., textural analysis, photoacoustic spectroscopy and photoluminescence spectroscopy; and (ii) evaluate the difference in hydrogen production in two distinct geometric reactors based on a theoretical study of light distribution inside the reactors supported by the experimental quantum yield calculation. As a result, copper‐doped photocatalyst generated higher hydrogen amount compared to the others. The high photocatalyst performance was due to the greater lamp spectrum absorption, marked by the low bandgap value, and high photoactivity justified by the low rate of electronic recombination. The hydrogen generation in the quartz reactor was seven times higher than the annular one, and when at maximum light power, it is comparable to the most sophisticated reaction systems found in literature. The larger light exposure area per unit volume of the quartz reactor compared to the annular one is the reason why it obtained better results due to the lower emitted photon blockade, with a 1.81% apparent quantum yield.

show abstract

Influence of combined alkaline treatment and Fe–Ti-loading modification on ZSM-5 zeolite and its catalytic performance in light olefin production

Cited by 27 publications

References 28 publications

Hydrocracking of Cerbera manghas Oil with Co-Ni/HZSM-5 as Double Promoted Catalyst

Hydrocracking of Cerbera manghas Oil with Co-Ni/HZSM-5 as Double Promoted Catalyst

Zn-Mo/HZSM-5 Catalyst for Gasoil Range Hydrocarbon Production by Catalytic Hydrocracking of Ceiba pentandra oil

Photocatalytic water splitting with noble‐metal free cocatalysts for a comprehensive study of two nonidentical photoreactors designs

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