Effect of Temperature and Concentration of Zeolite Catalysts from Geothermal Solid Waste in Biodiesel Production from Used Cooking Oil by Esterification–Transesterification Process

Buchori, Luqman; Widayat, Widayat; Muraza, Oki; Amali, Muhamad Iqbal; Maulida, Rahma Wulan; Prameswari, Jedy

doi:10.3390/pr8121629

Cited by 20 publications

(7 citation statements)

References 39 publications

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“…The smallest amount of PAH was adsorbed by zeolite with particle sizes of 1-3 mm, activated by calcination, 38.92 ng/g. The zeolite using NaOH and particle sizes 3-5 mm adsorbed 65.56 ng/g, a result which is consistent with the finding of Buchori, Araújo and Wirawan [33][34][35], namely that the interaction of π-electrons in the PAH (i.e., van der Waals forces) and the hydrophobicity of the zeolite ensure a bigger adsorption capacity. In Table 11 the correlation between the different measured parameters is presented for samples Cal1, NaOH 2 and HCl 2.…”

Section: Methodssupporting

confidence: 89%

Evaluation of the Impact of Different Natural Zeolite Treatments on the Capacity of Eliminating/Reducing Odors and Toxic Compounds

Fuss

Bruj²,

Dordai

et al. 2021

Materials

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Unlike odorants that mask odors, natural zeolite acts as a molecular sieve that captures and eliminates odors. Different treatment methods can be applied to influence the properties of the natural zeolites. To enhance the odor adsorption capacities of the natural zeolite two types of treatment methods were applied: chemical (acid, basic) and thermal. The initial natural zeolites and the activated one were characterized using X-ray diffraction (XRD) and scanning electron microscope (SEM-EDX). Two experiments were performed to establish the odor adsorption capacity of the activated natural zeolites. The best zeolite for the adsorption of humidity, ammonia and hydrogen sulfide was the 1–3 mm zeolite activated through thermal treatment. For the adsorption of PAHs, the best zeolite was the one activated through basic treatment, with an adsorption capacity of 89.6 ng/g.

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Section: Methodssupporting

confidence: 89%

Evaluation of the Impact of Different Natural Zeolite Treatments on the Capacity of Eliminating/Reducing Odors and Toxic Compounds

Fuss

Bruj²,

Dordai

et al. 2021

Materials

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“…In line with the strategy of reusing waste products as an input base for other technologies, new methods of recycling these products are constantly being developed, both focusing on the recovery of materials as well as energy production [1][2][3][4][5]. Waste engine oil could provide a common example of using a waste product for energy purposes.…”

Section: Introductionmentioning

confidence: 99%

Applicability of Waste Engine Oil for the Direct Production of Electricity

Włodarczyk

2021

Energies

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New methods for the use of waste products as input for other technologies are a constant subject of research efforts. One such product is waste engine oil. Due to the constantly increasing number of motor vehicles in the world, the recycling or application of engine oils for energy production purposes is currently of considerable importance. This paper contains research regarding the analysis of the electro-oxidation potential of waste engine oil, and thus the possibility of using such oil as a material in fuel cells. The research demonstrates the basic possibility of the electro-oxidation of this oil emulsion on a platinum electrode in an acid electrolyte (aqueous solution of H2SO4). It was shown that in the temperature range of 20–80 °C, the electro-oxidation of the waste engine oil emulsion occurred for all emulsion concentrations (0.005%, 0.010%, 0.030%, and 0.060% of the reactor volume). The maximum current density obtained in the measurements was 21 mA·cm−2 at the temperature of 60 °C (0.030% waste oil and 0.5 M electrolyte). Although this value is small, it encourages further research on the use of used engine oil for the direct generation of electricity.

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“…The catalyst used in this study provided higher biodiesel yields compared to most studies. A high yield (98.29 9%) was obtained by Buchori et al (2020) used a zeolite catalyst but required a high reaction temperature (300 • C). Likewise, the metakaolin flint catalyst used by Júnior et al (2013) also gave quite high biodiesel yields (97.21) but required a large amount of catalyst and a higher reaction temperature.…”

Section: Reusability Catalystmentioning

confidence: 99%

“…Several researchers have used kaolin as a catalyst in production of biodiesel. The use of a zeolite catalyst from geothermal solid waste can produce a biodiesel yield of 98.3% (Buchori et al, 2020) . Meanwhile, the use of impregnated hydroxyapatite (HAP) KI/KIO 3 catalyst was able to produce a yield of 91.78% (Widayat et al, 2020a) .…”

Section: Introductionmentioning

confidence: 99%

Preparation of KI/KIO3/Methoxide Kaolin Catalyst and Performance Test of Catalysis in Biodiesel Production

Buchori,

Widayat,

Ngadi

et al. 2024

Sci. Technol. Indones

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Kaolin is a natural ingredient that is in abundance and has not been widely used. Kaolin is a source of silica (SiO2) and alumina (Al2O3) so that it can be used as a heterogeneous catalyst in biodiesel production. This research aims to examine the influence of using impregnated kaolin as a heterogeneous catalyst on production of biodiesel. Research methods include calcination of natural kaolin, impregnation of kaolin using KI, KIO3, and preparation of kaolin-methoxide in various concentrations, as well as biodiesel production using an impregnated kaolin catalyst. The catalyst was characterized using XRD and SEM. The catalyst was tested for basicity using the Hammet indicator method with acid-base titration. The biodiesel product obtained was analyzed using GCMS. The results of XRD analysis showed that 8% kaolin-methoxide catalyst had the highest crystallinity among the others. The crystallinity obtained was 87.84% with a composition of 15.79% SiO2 and 78.86% Al2O3. SEM image results also show a more visible crystal shape. The highest basicity of the catalyst obtained was 0.240 mmol. The highest biodiesel yield using 8% kaolin-methoxide catalyst is 99.48%.

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Effect of Temperature and Concentration of Zeolite Catalysts from Geothermal Solid Waste in Biodiesel Production from Used Cooking Oil by Esterification–Transesterification Process

Cited by 20 publications

References 39 publications

Evaluation of the Impact of Different Natural Zeolite Treatments on the Capacity of Eliminating/Reducing Odors and Toxic Compounds

Evaluation of the Impact of Different Natural Zeolite Treatments on the Capacity of Eliminating/Reducing Odors and Toxic Compounds

Applicability of Waste Engine Oil for the Direct Production of Electricity

Preparation of KI/KIO3/Methoxide Kaolin Catalyst and Performance Test of Catalysis in Biodiesel Production

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