Development of K-mordenite catalyst for biodiesel production from soybean oil

Supamathanon, Natkanin; Khabuanchalad, Supatra

doi:10.1016/j.matpr.2019.06.162

Cited by 10 publications

(5 citation statements)

References 27 publications

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“…No structural damage to the zeolite was found after such relatively strong chemical treatment. During their study of the transformation of soybean into biodiesel, Supamathanon and Khabuanchalad [13] prepared various potassium-loaded mordenites and optimized the catalyst properties for basic catalysis. Hu et al [14] also used mordenite as a support for a Ru-based catalyst employed for the hydrodeoxygenation reaction of lignin and lignin-based bio-oil, aiming to improve the yield of hydrocarbons and the resistance to water of the catalyst.…”

Section: Introductionmentioning

confidence: 99%

Dealumination and Characterization of Natural Mordenite-Rich Tuffs

et al. 2022

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The present study evaluates the feasibility of partially dealuminated natural mordenite as a catalyst support by studying improvement in its textural properties. This is the first study that reports the dealumination of natural zeolite-based tuffs from Ecuador. For this purpose, mordenite-rich tuffs were obtained from deposits close to Guayaquil, Ecuador. The raw material was micronized in order to increase its surface, and treated with NH4Cl. NH4+ cation-exchanged samples were finally reacted with HCl(aq) to complete the dealumination process. The partially dealuminated samples were characterized using techniques such as XRD, FT-IR, SEM-EDS, and identification of their textural properties. Dealumination with HCl(aq) increased the Si/Al ratio up to 9 and kept the crystallographic structure of natural mordenite, as XRD results showed that the structure of mordenite was not altered after the dealumination process. On the other hand, textural properties such as surface area and microporosity were improved as compared to natural mordenite. In view of these results, the feasibility of using natural mordenite as a catalyst support is discussed in this study.

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Section: Introductionmentioning

confidence: 99%

Dealumination and Characterization of Natural Mordenite-Rich Tuffs

et al. 2022

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“…These signals are more intense in the composite obtained under optimal conditions, confirming a higher amount of BiOI over this composite sample. In addition, typical bands associated with mordenite zeolite are located at 808, 960 cm −1 and in the range between 1206 and 1869 cm −1 , corresponding to the fundamental vibrations of the tetrahedral bonds of (Al, Si) O 4 [ 58 , 59 , 60 ]. Furthermore, stretching signal vibrations associated with silanol groups (Si-O-H) are registered around 3668 cm −1 [ 61 ].…”

Section: Resultsmentioning

confidence: 99%

Synthesis of BiOI/Mordenite Composites for Photocatalytic Treatment of Organic Pollutants Present in Agro-Industrial Wastewater

et al. 2022

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Recently, bismuth oxyiodide (BiOI) is an attractive semiconductor to use in heterogeneous photocatalysis processes. Unfortunately, BiOI individually shows limited photocatalytic efficiency, instability, and a quick recombination of electron/holes. Considering the practical application of this semiconductor, some studies show that synthetic zeolites provide good support for this photocatalyst. This support material permits a better photocatalytic efficiency because it prevents the quick recombination of photogenerated pairs. However, the optimal conditions (time and temperature) to obtain composites (BiOI/ synthetic zeolite) with high photocatalytic efficiency using a coprecipitation-solvothermal growth method have not yet been reported. In this study, a response surface methodology (RSM) based on a central composite design (CCD) was applied to optimize the synthesis conditions of BiOI/mordenite composites. For this purpose, eleven BiOI/mordenite composites were synthesized using a combined coprecipitation-solvothermal method under different time and temperature conditions. The photocatalytic activities of the synthesized composites were evaluated after 20 min of photocatalytic oxidation of caffeic acid, a typical organic pollutant found in agro-industrial wastewater. Moreover, BiOI/mordenite composites with the highest and lowest photocatalytic activity were physically and chemically characterized using nitrogen adsorption isotherms, scanning electron microscopy (SEM), X-ray diffraction (XRD), Fourier transform infrared spectroscopy (FT-IR), and diffuse reflectance spectroscopy (DRS). The optimal synthesis conditions prove to be 187 °C and 9 h. In addition, the changes applied to the experimental conditions led to surface property modifications that influenced the photocatalytic degradation efficiency of the BiOI/mordenite composite toward caffeic acid photodegradation.

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“…The introduction of alkaline earth metal oxides into zeolites results in superior basic heterogeneous catalysts due to the increased distribution of active sites of metal oxide on the surface and within the pores of zeolite. This process also augments the density and partial negative charge of oxygen atoms in the zeolite framework [42], acting as Lewis bases and exhibiting better ability to attract protons from compounds [2,43]. Wu, et al ( 2013) conducted a study investigating the catalytic activity of CaO/NaY catalysts compared with CaO catalysts, as mentioned earlier.…”

Section: Alkaline Earth Metal Oxide Supported On Zeolite Catalystsmentioning

confidence: 99%

“…The depletion of fossil energy reserves, the increase in greenhouse gas emissions and global warming concerns have led to the exploration of renewable fuels such as biodiesel [1,2]. In contrast to petrodiesel, biodiesel exhibits greater sustainability, biodegradability, and enhanced combustion efficiently, resulting in lower emissions of CO 2 , SO x , NO x , and CO [1].…”

Section: Introductionmentioning

confidence: 99%

“…Adding alkaline earth metal oxides to zeolite can improve the distribution of basic active sites for transesterification reactions, thereby enhancing the catalytic activity [14]. Frequently used zeolite such as Faujasite (X and Y) [4,24,25], Mordenite [2,26,27], and MFI [16,28] stand out due to their high specific surface area and large pore diameter. Wu et al (2013) reported that CaO/NaY catalyst prepared through microwave-assisted impregnation exhibited higher alkalinity and catalytic activity compared to a CaO catalyst without zeolite support in biodiesel synthesis from soybean oil.…”

Section: Introductionmentioning

confidence: 99%

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Alkaline Earth Metal Oxide Supported on Zeolite as a Heterogenous Basic Catalyst for Clean Fuel (Biodiesel) Production: A Mini Review

Ulfa Nurcahyani,

Sumari

2024

E3S Web Conf.

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The depletion of fossil fuel reserves, worsening greenhouse gas effects, and global warming issues have driven the development of renewable energy sources, such as biodiesel. Biodiesel is as an alternative fuel to petrodiesel, typically produced through a transesterification reaction of triglycerides and alcohol in the presence of a catalyst. Alkaline earth metal oxide supported on zeolite are heterogeneous basic catalysts that are widely used in biodiesel synthesis. The addition of alkaline earth metal oxide to zeolite enhances the distribution of active sites, leading to an increase in catalytic activity. Zeolite is widely used as catalyst support due to its high surface area, good thermal stability, shape selectivity, and porous structure. This article presents recent developments in the synthesis and application of alkaline earth metal oxide supported on zeolite for transesterification reaction. The challenges and prospects of catalyst development are also discussed. This article aims to provide information and inspire the development of alkaline earth metal oxide supported on zeolite as a basic catalyst for biodiesel synthesis.

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Development of K-mordenite catalyst for biodiesel production from soybean oil

Cited by 10 publications

References 27 publications

Dealumination and Characterization of Natural Mordenite-Rich Tuffs

Dealumination and Characterization of Natural Mordenite-Rich Tuffs

Synthesis of BiOI/Mordenite Composites for Photocatalytic Treatment of Organic Pollutants Present in Agro-Industrial Wastewater

Alkaline Earth Metal Oxide Supported on Zeolite as a Heterogenous Basic Catalyst for Clean Fuel (Biodiesel) Production: A Mini Review

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