Conversion and characterization of synthetic zeolite using low grade kaolin from Mersing area of Johor

Abdullahi, Tijjani; Harun, Zawati; Othman, Mohd Hafiz Dzarfan; Nuhu, Awwal Hussain; Usman, Jamilu

doi:10.1063/1.5089401

Cited by 3 publications

(4 citation statements)

References 12 publications

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“…Depending on the conditions, LTA can also convert to FAU, GIS, 217,218 JBW 114 or ANA. 219 A study by Wernert et al has shown that zeolites with low framework density, such as FAU, CHA and NAT, transform into more thermodynamically stable zeolites with dense frameworks, such as SOD, CAN, ANA or GIS. 116 The transformation occurs faster with increasing temperature and NaOH concentration, which is also confirmed in other studies.…”

Section: Hydrothermal Synthesismentioning

confidence: 99%

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Green and low-cost synthesis of zeolites from kaolin: a promising technology or a delusion?

Zdretsov,

Gerasimov

2024

React. Chem. Eng.

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Section: Hydrothermal Synthesismentioning

confidence: 99%

“…It is better to say it is a conventional synthesis using alternative raw materials. Usually, the composition of the reaction mixture and synthesis conditions are based on early studies 219 or information from the IZA Synthesis Commission. 13 However, the process has some features.…”

Section: Hydrothermal Synthesismentioning

confidence: 99%

Green and low-cost synthesis of zeolites from kaolin: a promising technology or a delusion?

Zdretsov,

Gerasimov

2024

React. Chem. Eng.

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“…Low-temperature calcination of crude kaolin can be performed at 600 • C, leading to the formation of metakaolin, subsequently undergoing hydrothermal synthesis to attain zeolite without additional silica and alumina [111]. The low-grade kaolin can be synthesized into zeolites with good crystallinity at a low temperature of 90 • C and improvement of raw material reactivity was observed under 700 • C for the metakaolinization process with a period of 2 h [112]. The favourable results obtained without the addition of a structural directing agent showed the suitability of kaolin as a zeolite precursor.…”

Section: Kaolin Clay In Malaysiamentioning

confidence: 99%

Indigenous Materials as Catalyst Supports for Renewable Diesel Production in Malaysia

Chia

Nomanbhay²,

Chew³

et al. 2022

Energies

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High energy demand from the market due to the rapid increment of the human population worldwide has urged society to explore alternatives to replace non-renewable energy. Renewable diesel produced from biomass could be the next potential energy source for its high stability, long-term storage, and comparable performance with diesel fuels. In producing renewable diesel, the application of catalyst is essential, and the catalyst support is synthesized with the catalyst to enhance the reaction rate and catalytic properties. In this review, the type of catalyst support will be reviewed along with a brief introduction to biodiesel and renewable diesel production, especially focusing on zeolites as the catalyst support. The enhancement of catalyst support will be critically discussed to improve the catalytic performance of support in renewable diesel production and important aspects such as the stability and recyclability of the supported catalyst are included. The application of the supported catalyst in increasing the selectivity and yield of renewable diesel is significant, in which the catalytic properties depend on the interaction between catalyst and catalyst support. The supported catalyst as a favorable substance to assist in enhancing renewable diesel yield could lead to a sustainable and greener future for the biofuel industry in Malaysia.

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“…On the other hand, Fig 1 (c) revealed the platy structure of the activated kaolin. The thermal activation of the kaolin has therefore produced a highly disordered metakaolin that is characterized by sheet-like morphology and a highly disordered and amorphous structure, which according to Abdullahi, Harun [17], Srilai, Tanwongwal [18] is necessary to attain as a precondition to successful crystallization of zeolite particles.…”

Section: Fig 1 -Fesem Image and Edx Spectra For (A-b) Kaolin (C-d) Metakaolinmentioning

confidence: 99%

Synthesizing of Zeolite Particle Using Alkaline Plant Extract

Abdullahi¹,

Harun

Sazali

et al. 2021

EmAIT

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The study explored the hydrothermal synthesis of zeolite using kaolin clay precursor in the presence of three different solvents namely, garlic extract, watermelon extract and 2M NaOH solution, with the view of testing their efficacy and potency for green synthesis. Before the zeolitization, the kaolin precursor was activated at a temperature of 850°C to produce metakaolin. The crystallization was achieved in an oven at a temperature of 90°C for 12 hours. The final product is grounded to a fine powder and subsequently undergo testing and characterization via X-ray Diffraction (XRD) and Field Emission Scanning Electron Microscopes (FESEM) methods. The purity and grade of the synthesized products vary accordingly with the suitability of the reaction solvent. The synthesized product using a solvent of watermelon plant extract was able to produce zeolite LTA of a good grade. However, the presence of secondary phases informed the effect of the accompanied impurities that might originate from the kaolin precursor or the solvent. The result also portrays the possibility of obtaining a well crystalline zeolite from the Malaysian kaolin without using any structural directing agent or chemical solvents.

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Conversion and characterization of synthetic zeolite using low grade kaolin from Mersing area of Johor

Cited by 3 publications

References 12 publications

Green and low-cost synthesis of zeolites from kaolin: a promising technology or a delusion?

Green and low-cost synthesis of zeolites from kaolin: a promising technology or a delusion?

Indigenous Materials as Catalyst Supports for Renewable Diesel Production in Malaysia

Synthesizing of Zeolite Particle Using Alkaline Plant Extract

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