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12 articles for “Zeolites”
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Synthesis of Zeolites: An Overview
Abstract: Zeolites are microporous, aluminosilicate minerals commonly used as commercial adsorbents and catalysts. Zeolite synthesized from CFA is a minor but interesting product, with high environmental applications. Zeolites may be easily obtained from CFA by relatively cheap and fast conversion processes. This paper provides an overview on the methodologies for zeolite synthesis from CFA, and a detailed description of conventional alkaline conversion processes, with special emphasis on the experimental conditions to …
Published in International Journal of Chemical Synthesis and Chemical Reactions · Vol. 3, Issue 2, 2017 · pp. 8–14 Read article
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Investigation on Synthesis and Evaluation of Nanopore NaA Zeolite Membranes
Abstract: Effects of synthesis parameters on the membrane structure and performance have been investigated for nanopore NaA zeolite membranes grown onto seeded mullite supports. Molar composition of the starting gel of nano NaA membranes was: SiO2/Al2O3=0.8–3.2, Na2O/Al2O3=1.6–4.6, and H2O/Al2O3=50–200. Also, effects of crystallization time and temperature on the membrane performance were studied. X-ray diffraction (XRD) patterns of the membranes exhibited peaks corresponding to the support and the zeolite. The crystal species …
Published in International Journal of Analytical and Applied Chemistry · Vol. 3, Issue 2, 2017 · pp. 9–22 Read article
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Simulation of Syngas Production from Rice Straw Gasification over Zeolite Catalyst using Aspen Plus
Abstract: A comprehensive process model is developed to simulate syngas production from Rice strawGasification over zeolite catalyst using an Aspen Plus simulator. The model is based on Niko andMahinpey model and some modifications were made in the gasification reaction model. Two caseswere stimulated which are catalytic gasification and non-catalytic gasification to test the impact ofzeolite catalyst on the reaction. Comparisons were based on the basis of flowrate, energyconsumption and effect of …
Published in International Journal of Chemical Synthesis and Chemical Reactions · Vol. 7, Issue 2, 2021 · pp. 11–17 Read article
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The Performance of Microbial Lipase Immobilized onto Ion Exchange Resins and onto the Natural Zeolite Clinoptilolite
Abstract: The paper describes a study into the performance of a microbial lipase immobilized on to four different ion exchangers. Lipase from the yeast Candida rugosa was immobilized onto the anionic ion exchange resins Dowex MWA-1, Purolite A109, and Amberlite IR45. The performance of the immobilized lipase in each case was evaluated by measuring the immobilization efficiency and by following the reaction kinetics of hydrolysis of a tri-glyceride ester to free …
Published in International Journal of Chemical Separation Technology · Vol. 2, Issue 2, 2016 · pp. 24–32 Read article
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Preparation and Evaluation of Nano pore Faujasite Membranes
Abstract: Nano pore Faujasite zeolite membranes were synthesized by in-situ hydrothermal method on porous ceramic tubes. Hydrothermal crystallization was carried out under an autogenously pressure and at a static condition of 100 oC. Molar composition of the starting gel of Faujasite zeolite membranes were NaX: SiO2/Al2O3=10-27, Na2O/Al2O3=4-9, H2O/Al2O3=250; NaY: SiO2/Al2O3=2.5-4, Na2O/SiO2=1.08-2, H2O/Na2O=30-200. X-ray diffraction (XRD) patterns of the membranes exhibited peaks corresponding to the support and the zeolite. The crystal species …
Published in International Journal of Chemical Synthesis and Chemical Reactions · Vol. 3, Issue 2, 2017 · pp. 15–24 Read article
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Studies of Nano-catalyst
Abstract: Nano-catalysts are studied in this article to compose single allocate transitional or novel atom on substrate in place of usual nano-configured atoms aligned to Pt, Pd, Ru, Rh and Ir. Acid to base proposition subjected to form stable catalyst composes from transition metals in place from expensive novel metals. In novel metal nano-cluster catalyst compose has selected scheme at rest with no or reverse consequence to give rise well defined …
Published in International Journal of Nanomaterials and Nanostructures · Vol. 7, Issue 1, 2021 · pp. 13–18 Read article
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Pressure Swing Adsorption – A Review
Abstract: Pressure swing adsorption (PSA) depends on air being filtered through aluminosilicate minerals known as zeolites. This review paper gives a silhouette about the PSA, mechanism of working and use of zeolites in PSA. The one use for PSA oxygen has been specially designed so that nitrogen gas is adsorbed onto it while oxygen (and argon) passes straight through. The zeolite is instantly saturated with nitrogen, so two zeolite beds are …
Published in International Journal of Industrial Biotechnology and Biomaterials · Vol. 3, Issue 1, 2017 · pp. 30–37 Read article
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Design and Optimization of Heterogeneous Catalysts for Green Chemistry Processes
Abstract: The design and optimization of heterogeneous catalysts are critical for advancing green chemistry processes, aiming to minimize environmental impact while maximizing efficiency. This study explores innovative strategies for the development of heterogeneous catalysts that facilitate environmentally benign reactions. By integrating principles of catalyst design, surface science, and reaction engineering, we aim to enhance catalytic performance, selectivity, and stability. Catalyst composition and structure, investigating novel materials, including metal-organic frameworks (MOFs), zeolites, …
Published in International Journal of Chemical Synthesis and Chemical Reactions · Vol. 10, Issue 1, 2025 · pp. 42–48 Read article
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A Review on Water Treatment by Nanotechnology Based Membrane Materials
Abstract: Nanotechnology offers novel nanomaterials having a good potential for the surface, ground and wastewater treatment contaminants using different technologies. Performance of membrane technology is based upon the type and size of material, and novel nano-structured materials range from 4 nm to 100 nm. Among the numerous 3D nanoparticles having high potential applications, nanostructured coated ceramic membranes, nanocomposite, TFC, carbon nano tubes (CNT), zeolite, silicate and mixed matrix membranes are considered …
Published in International Journal of Industrial Biotechnology and Biomaterials · Vol. 5, Issue 1, 2019 · pp. 43–54 Read article
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Synthesis and characterization of high saline water resistant sulphur composite from petrochemical waste
Abstract: Petrochemical industry produces variety of side products and waste materials like sulphur, spent catalysts, spent adsorbents, etc. These waste materials can be converted to the value-added products by forming their composites with unique properties. For example, sulphur due to its chemical properties like high resistivity to corrosive environment, hydrophobic nature, antifungal property, its composite can be prepared and used in construction industries as a substitute for cement composite material. To …
Published in International Journal of Green Chemistry · Vol. 6, Issue 2, 2020 · pp. 64–77 Read article
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Nanofertilizers – A Revolutionary Fertilizer for Sustainable Agriculture
Abstract: Because of the inadequacy in arable lands and water resources, the improvement of agriculture segment is only promising by increasing of resources use efficiency with the least destruction to production bed through effective use of modern technologies. Among these, nanotechnology has the prospective to transform the agricultural structures, biomedicine, environmental engineering, safety and security, water resources, energy conversion, and various other areas. Nanostructured design through mechanisms such as targeted supply …
Published in International Journal of Applied Nanotechnology · Vol. 1, Issue 1-2, 2015 Read article
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The Current Role of Nanomaterials in Paints Industry
Abstract: Nano coatings are materials that are made by getting the material at the nuclear level to outline a denser thing. Nano coatings have a couple of purposes of enthusiasm, for instance, better surface appearance, awesome engineered assurance, better warm and electrical conductivity and better disintegration insurance. Wire of nanoparticles update the disintegration insurance of zeolite coatings, epoxy coatings and antimicrobial coatings. The nanopaint development improves the structure's entire ecobalance. The …
Published in International Journal of Applied Nanotechnology · Vol. 4, Issue 1, 2018 · pp. 19–33 Read article