Acid Activation of Natural Zeolite with High Content of Iron Oxides in Creation of Selective Sorbents and Catalysts

Kadirbekov, K. A.; Zhambakin, Dauren; Kadirbekov, A. K.; Imanbekov, K. I.

doi:10.1051/matecconf/20179600002

Cited by 6 publications

(2 citation statements)

References 10 publications

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“…This volcanic rock was used as a synthetic catalyst by means of physical and chemical activation. The treatment of heterogeneous solid catalysts by acidi cation and calcination to remove cations of various impurities from the catalyst surface (mainly alkaline compounds) was adopted [19,20]. Physical activation was carried out by pulverizing volcanic ash and sieved to a size of 100 mesh.…”

Section: Methodsmentioning

confidence: 99%

Inexpensive Volcanic Ash Catalyst for Pyrolysis of Plastic Waste into Fuel Using Sequential Thermo-Catalytic Reactor

Suhartono,

Romli,

Prabowo

et al. 2023

Preprint

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Single-stage thermal pyrolysis of plastic waste produces liquid fuel (LF) of low quality and quantity and requires high temperature and long complete pyrolysis time. Pyrolysis of plastic waste via thermal and catalytic route using an existing sequential pyrolysis reactor and catalytic reformer was addressed to overcome this issue. Each low density polyethylene (LDPE) and polystyrene (Styrofoam) waste was converted plastic waste into LF at intervals of 200–400 oC and a pyrolysis time of 30–90 minutes. Low-cost and type of catalyst, such as volcanic ash was divined as important roles in the characteristics and quantity of LF produced. The volcanic ash is revisited to find a better and more effective catalyst in converting plastic waste into LF due to it contains quite high SiO2 and Al2O3. The volcanic ash was activated physically and chemically. The catalyst characteristics were observed based on Brunauer-Emmet-Teller (BET) and Scanning Electron Microscopy–Energy Dispersion Spectroscopy (SEM-EDS) analysis. The properties and influence of using this catalyst in a reformer for second-stage degradation of plastic waste were observed. The characteristics of LF were observed by flash point, smoke point, ignition point, density, viscosity, calorific value, and GC-MS analysis. The results of the BET analysis of activated volcanic ash and inactivated volcanic ash showed a surface area of 3.8475 m2/g and 1.1188 m2/g, respectively. The results of SEM-EDS analysis depicted that the content of SiO2 and Al2O3 in volcanic ash was quite high of 81.89% and 5.57%, respectively with a better adsorption rate than inactive volcanic ash. The most dominant LF composition of styrofoam and LDPE is C8H8 (70.323%) and C10H20 (25.831%), respectively. LF fraction of LDPE pyrolysis has the largest composition in the range of C9–C14 carbon atoms of 61.27% as a high aliphatic proportion. Whereas the LF fraction from styrofoam pyrolysis has the largest composition in the range of C5–C9 carbon atoms of 92.49% with a low percentage of aliphatic hydrocarbons alkanes (paraffin) and alkenes (olefin). Based on the results characteristics and GC-MS analysis, the LF of LDPE pyrolysis is the closest hydrocarbon composition to kerosene, whereas the LF fraction from styrofoam is on par with gasoline fuel, with higher quality compared to commercial gasoline.

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Section: Methodsmentioning

confidence: 99%

Inexpensive Volcanic Ash Catalyst for Pyrolysis of Plastic Waste into Fuel Using Sequential Thermo-Catalytic Reactor

Suhartono,

Romli,

Prabowo

et al. 2023

Preprint

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“…The H-OH vibration was observed in 1644 cm -1 . Characterization of Acid-activated and Calcined Zeolite Natural zeolite was activated by 3 M HCl to remove any organic and inorganic impurities from natural zeolite such as iron, sulfur or phosphorous, cleanse the pores, and leading to decationization-dealumination process of zeolite framework without destroying it (Al Muttaqii et al, 2019;Kadirbekov et al, 2017). The purpose of dealumination is to optimize selectivity, acidity control, and stability at high temperature of natural zeolite (Al Muttaqii et al, 2019).…”

Section: Characterization Of Natural Zeolitementioning

confidence: 99%

Adsorption of Copper Ion from Acidic Wastewater by Local Natural Zeolite

Tahya

Cornelia²,

Siregar³

et al. 2022

Walisongo J. Chem.

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Natural zeolites are available in Indonesia in very large quantities and are available in the market at very affordable prices. The use of zeolite has developed in various fields of industry, water treatment and wastewater treatment. The study on the ability of local natural zeolite to adsorb copper from acidic wastewater from a laboratory in Tangerang has been conducted. XRD data show that the local natural zeolite consists of mordenite as main mineral and quartz as an accessory mineral. Acid activation of zeolite with HCl 3 M could remove quartz impurities from natural zeolite based on XRD data. Mordenite is one of the most abundant zeolite minerals and commercially used for many purposes including adsorbents, catalyst, fertilizer, and gas separation. The crystallinity of mordenite decreases throughout the process of acid activation and calcination. The calcined zeolite has better copper adsorption ability compared to local natural zeolite without any treatment. The optimum copper adsorption percentage is 14.554% at solution pH of 0.3 by using 10 grams of calcined zeolite in 200 mL of wastewater solution.

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Effect of high-energy milling on the structure, some physicochemical and photocatalytic properties of clinoptilolite

Sydorchuk¹,

Vasylechko

Khyzhun

et al. 2021

Applied Catalysis A: General

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Acid Activation of Natural Zeolite with High Content of Iron Oxides in Creation of Selective Sorbents and Catalysts

Cited by 6 publications

References 10 publications

Inexpensive Volcanic Ash Catalyst for Pyrolysis of Plastic Waste into Fuel Using Sequential Thermo-Catalytic Reactor

Inexpensive Volcanic Ash Catalyst for Pyrolysis of Plastic Waste into Fuel Using Sequential Thermo-Catalytic Reactor

Adsorption of Copper Ion from Acidic Wastewater by Local Natural Zeolite

Effect of high-energy milling on the structure, some physicochemical and photocatalytic properties of clinoptilolite

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