Beneficial use of ultrasound irradiation in synthesis of beta–clinoptilolite composite used in heavy oil upgrading process

Safari, Sahar; Khoshbin, Reza; Karimzadeh, Ramin

doi:10.1039/c9ra02173f

Cited by 10 publications

(2 citation statements)

References 68 publications

(104 reference statements)

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“…These processes usually take several hours or even days to achieve effective zeolite modification. However, there are other, more advanced methods, such as microwaves [61,62,191,192] and ultrasound [193][194][195], the use of which leads to a sharp decrease in processing time, down to very few hours or even minutes. Often, such processes are accompanied by increasing the ion exchange level [61,191,193,195]; they do not have a destructive effect on the zeolitic framework [61,191,192].…”

Section: Challenges and Prospects For Innovationmentioning

confidence: 99%

Ion Exchange in Natural Clinoptilolite: Aspects Related to Its Structure and Applications

2022

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Clinoptilolite is one of the most common, widespread and abundant zeolites in nature. Its availability, low cost, and outstanding ion exchange properties make clinoptilolite an excellent candidate for both direct use and various modifications to create new low-cost functional materials for sustainable development. Specific applications in which clinoptilolite is already being used include water treatment and heavy metal ion removal, agricultural purposes, storage and conversion of unwanted gaseous emissions into the atmosphere, production of catalysts and photocatalysts, bioactive materials, and a number of others. Unlike some other zeolites, clinoptilolite is difficult to synthesize, which is why most publications refer to this zeolite in its natural form, either directly from the deposit or after applying various processes to this mineral to improve its properties. Among the modification methods used, ion exchange stands out. This review is devoted to the study of ion exchange processes in natural clinoptilolite with two goals: first, as its strategic property for use in processes in which cation exchange is fundamentally necessary; second, as a way to modify it to create composite materials with predetermined desired properties.

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Section: Challenges and Prospects For Innovationmentioning

confidence: 99%

Ion Exchange in Natural Clinoptilolite: Aspects Related to Its Structure and Applications

2022

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“…6, all the samples show type IV isotherms with H3 hysteresis loop which conrms the slitshaped mesoporous structure of the catalysts. 47,48 Little adsorption at low relative pressure (below 0.2) can be attributed to the micropores, while adsorption at relative pressure above 0.7 originated from the presence of mesopores. 35 A similar result was obtained by Obeso-Estrella et al 49 Furthermore, the pore diameter distribution of the samples resulted from Barrett-Joyner-Halenda (BJH) calculation indicated narrow distributions at low fuel content.…”

Section: Fesem Analysismentioning

confidence: 99%

Facile fabrication, characterization and catalytic activity of a NiMo/Al₂O₃ nanocatalyst via a solution combustion method used in a low temperature hydrodesulfurization process: the effect of fuel to oxidant ratio

2020

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Adsorption of 3‐monochloropropane‐1,2‐diol ester and glycidyl ester from refined bleached deodorized palm oil using zeolite‐based adsorbents

Restiawaty,

Rida,

Maulana

et al. 2024

J Americ Oil Chem Soc

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Palm oil processing can result in different food products like cooking oil and margarine. Nevertheless, these food products might contain harmful contaminants, namely 3‐monochloropropane‐1,2‐diol ester (3‐MCPDE) and glycidyl ester (GE), which can negatively affect animal organs and potentially cause human cancer. Therefore, the objective of this study was to lower the concentration of 3‐MCPDE and GE in refined, bleached, and deodorized palm oil (RBDPO) using zeolite as an adsorbent. Adsorption experiments were conducted in a batch reactor, varying the percentage of adsorbents, temperature, type of zeolite, and the use of a mixture of zeolite and activated carbon (AC). The sample was analyzed before and after adsorption using gas chromatography–mass spectroscopy (GC–MS) to confirm the concentration alteration of 3‐MCPDE and GE. The study showed that the most effective temperature for adsorption was 35°C and used a zeolite percentage of 2%. Beta zeolites resulted in the highest removal of 3‐MCPDE (86%) among the evaluated zeolites attributed to their elevated pore volume, Si/Al ratio, and overall acidity strength. Through a synergistic combination of beta zeolite and AC, the removal percentage of 3‐MCPDE was enhanced to 94%, with a corresponding 75% reduction in GE. This study paves the way for addressing 3‐MCPDE and GE concerns in RBDPO by combining zeolite and AC.

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Beneficial use of ultrasound irradiation in synthesis of beta–clinoptilolite composite used in heavy oil upgrading process

Abstract: Beta–clinoptilolite composite synthesized in the presence of ultrasound irradiation exhibited high stability in heavy oil upgrading process while producing equal amount of light fuels and lower amount of coke compared to beta zeolite catalyst.

Cited by 10 publications

References 68 publications

Ion Exchange in Natural Clinoptilolite: Aspects Related to Its Structure and Applications

Ion Exchange in Natural Clinoptilolite: Aspects Related to Its Structure and Applications

Facile fabrication, characterization and catalytic activity of a NiMo/Al₂O₃ nanocatalyst via a solution combustion method used in a low temperature hydrodesulfurization process: the effect of fuel to oxidant ratio

Adsorption of 3‐monochloropropane‐1,2‐diol ester and glycidyl ester from refined bleached deodorized palm oil using zeolite‐based adsorbents

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Beneficial use of ultrasound irradiation in synthesis of beta–clinoptilolite composite used in heavy oil upgrading process

Abstract: Beta–clinoptilolite composite synthesized in the presence of ultrasound irradiation exhibited high stability in heavy oil upgrading process while producing equal amount of light fuels and lower amount of coke compared to beta zeolite catalyst.

Cited by 10 publications

References 68 publications

Ion Exchange in Natural Clinoptilolite: Aspects Related to Its Structure and Applications

Ion Exchange in Natural Clinoptilolite: Aspects Related to Its Structure and Applications

Facile fabrication, characterization and catalytic activity of a NiMo/Al2O3 nanocatalyst via a solution combustion method used in a low temperature hydrodesulfurization process: the effect of fuel to oxidant ratio

Adsorption of 3‐monochloropropane‐1,2‐diol ester and glycidyl ester from refined bleached deodorized palm oil using zeolite‐based adsorbents

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Facile fabrication, characterization and catalytic activity of a NiMo/Al₂O₃ nanocatalyst via a solution combustion method used in a low temperature hydrodesulfurization process: the effect of fuel to oxidant ratio