Identification of potassium phase in catalysts supported on zeolite NaX and performance in transesterification of Jatropha seed oil

Manadee, Saowanee; Sophiphun, Onsulang; Osakoo, Nattawut; Supamathanon, Natkanin; Kidkhunthod, Pinit; Chanlek, Narong; Wittayakun, Jatuporn; Prayoonpokarach, Sanchai

doi:10.1016/j.fuproc.2016.09.023

Cited by 33 publications

(23 citation statements)

References 19 publications

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“…Although zeolites have been synthesized from the solid wastes, such as fly ash [ 27 , 28 , 29 ], rice husk ash [ 30 ] and coal gangue [ 22 ], the uncertainty in their supplies and the impurity in their components may limit their practical application. Therefore, direct synthesis of zeolites from natural aluminosilicate and silicate minerals with abundant reserves in the earth has been pursued because of its great potential in reducing the generation of hazardous wastes, saving energy, and possibly altering the properties of the resulting zeolites [ 31 ].…”

Section: Introductionmentioning

confidence: 99%

One-Step Hydrothermal Synthesis of Zeolite X Powder from Natural Low-Grade Diatomite

et al. 2018

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Zeolite X powder was synthesized using natural low-grade diatomite as the main source of Si but only as a partial source of Al via a simple and green hydrothermal method. The microstructure and surface properties of the obtained samples were characterized by powder X-ray diffraction (XRD), scanning electron microscopy (SEM), wavelength dispersive X-ray fluorescence (XRF), calcium ion exchange capacity (CEC), thermogravimetric-differential thermal (TG-DTA) analysis, and N2 adsorption-desorption technique. The influence of various synthesis factors, including aging time and temperature, crystallization time and temperature, Na2O/SiO2 and H2O/Na2O ratio on the CEC of zeolite, were systematically investigated. The as-synthesized zeolite X with binary meso-microporous structure possessed remarkable thermal stability, high calcium ion exchange capacity of 248 mg/g and large surface area of 453 m2/g. In addition, the calcium ion exchange capacity of zeolite X was found to be mainly determined by the crystallization degree. In conclusion, the synthesized zeolite X using diatomite as a cost-effective raw material in this study has great potential for industrial application such as catalyst support and adsorbent.

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Section: Introductionmentioning

confidence: 99%

One-Step Hydrothermal Synthesis of Zeolite X Powder from Natural Low-Grade Diatomite

et al. 2018

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“…The catalyst weight (A), methanol to oil molar ratio (B), and time (C) were independent variables selected to be optimized for the conversion of Capparis spinose oil to biodiesel. The ranges, actual, and coded levels of the independent parameters are given in Table 1 (Xie et al 2007;Martínez et al 2014;Manadee et al 2017). Twenty experiments with six replications were performed at the center points to estimate the error value, and the data is analyzed via a second-order polynomial as presented in the following (Halim et al 2009, Talebian-Kiakalaieh et al 2013, Aryasomayajula Venkata Satya Lakshmi, et al 2020, Zhang et al 2020…”

Section: Experimental Designmentioning

confidence: 99%

“…Martínez et al (Martínez et al 2014) synthesized K 2 O/NaX catalyst for biodiesel production from Sunflower oil. Manadee et al (Manadee et al 2017) synthesized zeolite NaX as catalyst support applying rice husk silica and impregnating potassium acetate on NaX. The x/ NaX catalyst was utilized for the transesterification of jatropha seed oil.…”

Section: Introductionmentioning

confidence: 99%

Parametric optimization of biodiesel synthesis from Capparis spinosa oil using NaOH/NaX as nanoheterogeneous catalyst by response surface methodology

Helmi

Tahvildari

Hemmati

2020

Braz. J. Chem. Eng.

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In this research, Capparis spinosa oil was used as a feedstock for biodiesel production in the presence of NaOH/NaX as a nano heterogeneous catalyst. The NaOH/NaX catalyst was characterized by XRD, SEM, and BET analyses. The transesterification reaction was optimized through response surface methodology (RSM) based on the central composite design (CCD) of experiments. The effects of key variables of catalyst weight, methanol to oil molar ratio, and time on the reaction were studied, and a precise discussion about the impact of each process variable on the biodiesel yield was carried out. The highest biodiesel yield was 90.33% for the optimum reaction conditions that include a constant temperature of 60 °C, methanol to oil molar ratio of 6.7:1, catalyst weight of 2.3 wt%, and reaction time of 1.24 h. Furthermore, all physicochemical properties of the produced biodiesel were matched to the ASTM standard. Based on the obtained results, Capparis spinosa oil is a suitable source for biodiesel production.

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“…[2] Using natural impregnated zeolite by KOH as a heterogeneous catalyst to produce biodiesel, research was conducted at a temperature of 50 o C, as long as two hours, yielded 96.7% biodiesel. [7] Another method is to using an impregnated NAX catalyst using a 16% KOH produced (95.2 ± 0.96%) biodiesel for 3 hours reaction and temperature 65 o C. [8] Using lithium metasilicate and mixed with ABW zeolite as catalyst, produced biodiesel above 95% within one hour reaction time. Furthermore, the catalyst used can be recycled in three cycles in a row without deactivation.…”

Section: Introductionmentioning

confidence: 99%

Modification of bayah banten natural zeolite as heterogeneous catalyst in biodiesel production

Hartono

Wijanarko²,

Hermansyah³

2019

J Appl Eng Science

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The purpose of this study was to produce a biodiesel through the reaction of waste cooking oil with methanol by using a modifi ed Bayah Banten zeolite as catalyst. This catalyst was produced from its natural from by using potassium hydroxide (KOH) as a reactant in 100 ml of distilled water. The reaction to produce a biodiesel was performed at various temperature and time to get the optimum condition. The advantages of this catalyst were eco-friendly, easily separated after the reaction process, and can be reused as a catalyst. The molar ratio of waste cooking oil and methanol for transesterifi cation process was 1:7. The yield of biodiesel at various optimum temperatures and times is 94% (50 gram of KOH/100ml), 87,8% (75 gram of KOH/100ml), and 86% (100 gram of KOH/100 ml). Biodiesel results were analyzed by GC Ester content and modifi ed catalysts were characterized using XRD, FTIR, and SEM-EDX.

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Identification of potassium phase in catalysts supported on zeolite NaX and performance in transesterification of Jatropha seed oil

Cited by 33 publications

References 19 publications

One-Step Hydrothermal Synthesis of Zeolite X Powder from Natural Low-Grade Diatomite

One-Step Hydrothermal Synthesis of Zeolite X Powder from Natural Low-Grade Diatomite

Parametric optimization of biodiesel synthesis from Capparis spinosa oil using NaOH/NaX as nanoheterogeneous catalyst by response surface methodology

Modification of bayah banten natural zeolite as heterogeneous catalyst in biodiesel production

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