tailieunhanh - Preparation and modification of zeolite A from kaolin for catalytic methanation of carbon dioxide

In this research, in an attempt to make use of the kaolin resources in Vietnam, we present a synthetic process of zeolite A via hydrothermal from kaolinite, together with the modification process of zeolite A using different metallic cations. The characteristics of the prepared zeolite LTAs such as chemical composition and crystalline structure, as well as their catalytic activity in the methanation reaction of carbon dioxide (CO2) to methane (CH4) were extensively investigated. | Cite this paper Vietnam J. Chem. 2023 61 2 170-177 Research article DOI Preparation and modification of zeolite A from kaolin for catalytic methanation of carbon dioxide Do Cao Son1 2 Vo Thi Kieu Anh4 Nguyen Thi Thom4 Huynh Le Thanh Nguyen2 3 Le Viet Hai2 3 Co Thanh Thien2 3 Nguyen Thai Hoang2 3 Tran Dai Lam4 Pham Thi Nam4 Nguyen Thi Thu Trang1 4 1 Graduate University of Sciences and Technology Vietnam Academy of Science and Technology VAST 18 Hoang Quoc Viet road Cau Giay district 10000 Hanoi Viet Nam 2 University of Science 227 Nguyen Van Cu road district 5 70000 Ho Chi Minh City Viet Nam 3 Vietnam National University of Ho Chi Minh City Vo Truong Toan road Linh Trung district Thu Duc City 70000 Ho Chi Minh City Viet Nam 4 Institute of Tropical Technology Vietnam Academic of Science and Technology VAST 18 Hoang Quoc Viet road Cau Giay district 10000 Hanoi Viet Nam Submitted February 28 2022 Revised April 28 2022 Accepted May 24 2022 Abstract Different types of zeolite including Zeolite A are prepared from natural kaolin originated in Vietnam. Raw kaolin was collected from Phu Tho Vietnam underwent metakaolization at 650 C within 2 hours and alkalination with NaOH to synthesize various zeolitic samples. Various characterization techniques were performed including X- Ray Diffraction Fourier-transform infrared spectroscopy and Scanning Electron Microscopy. Different concentrations of NaOH were utilized to study the difference of the prepared zeolite. Nickel-doped zeolite A samples with different nickel loading were also prepared via ion exchange method and were employed as catalyst for the hydrogenation of carbon dioxide CO2 to obtain methane CH4 . The best catalytic activity of CO2 conversion and CH4 selectivity was achieved with 10 Ni ZM1 at 350 C 1 atm H2 CO2 ratio of 4 1 and gas hourly space velocity of 9 000 . This study demonstrates a promising pathway of modifying Vietnamese natural kaolin as a low-cost but an .

• Hoá học
• Carbon dioxide
• Scanning electron microscopy
• Carbon dioxide
• Nickel doped zeolite
• Various characterization techniques
• X Ray diffraction
• Carbon dioxide emission
• Carbon tax
• Energy use in south Africa
• Series analysis of carbon dioxide emission
• Economic growth
• Renewable energy
• Natural resources
• Carbon dioxide emission in Malaysia
• Mathematical science
• Physical science
• concentration of carbon dioxide
• Voigt profile
• The main greenhouse gases
• Carbon nanotube titanium dioxide hybrids
• Titanium dioxide
• TiO2/CNTs composite
• Carbon nanotubes
• Methylene blue
• Electricity production
• Carbon dioxide emissions
• Energy transition
• Reduce carbon dioxide emissions in morocco
• Journal of Chemistry
• Carbon dioxide absorption
• Carbon dioxide binding organic liquids
• Fast reaction kinetics
• Stopped flow technique
• BMC Anesthesiology
• Time delay
• Body temperature
• Central venous oxygen saturation
• Arterial blood carbon dioxide
• Arterial venous oxygen difference ratio
• Bài viết nghiên cứu khoa học
• Sulfur dioxide
• Carbon monoxide
• Activated carbon
• Transition metal oxide
• Selective catalytic
• DFT calculations
• DFT D calculations
• Computational methods
• Grand canonical ensemble Monte Carlo
• Platinum nanoparticles
• Supercritical carbon dioxide deposition
• Polymer composites
• Oxygen reduction reaction (ORR)
• công nghệ sinh học
• thực vật
• đông vật
• tế bào
• cận tử
• Biocatalytic Conversion
• Greenhouse Methane
• Porous Solids
• Petrochemical Plant
• Solvent System
• Amines
• Subsequent
• Halohydrin
• CO2 Conversion
• CO2 Capture
• Công nghệ hóa
• Thành phần hóa học
• Tinh dầu tiêu
• Piper nigruml
• Phương pháp carbon dioxide
• Hóa phân tích
• Tomato Lycopersicon esculentum Mill
• Mature green
• Carbon dioxide treatment
• Controlled atmosphere
• Total soluble solids
• Compacting of soil
• Urease enzyme activity
• Carbon dioxide evaluation
• Nitrogen mineralisation
• Enzyme activity
• International Journal of Computer Science and Telecommunications
• Removing lipid from crude collagen of pangasius hypophthalmus
• Supercritical carbon dioxide
• Pangasius hypophthalmus fish skin
• Ánh sáng mạnh
• Nhiệt độ cao
• Thiếu khí carbon dioxide
• Hiện tượng quang ức chế
• Lá Mai Dương Mimosa pigra L
• Vận tốc chuyển điện tử
• Nuclear engineering and technology
• Numerical comparison of thermalhydraulic aspects
• Subcritical water based natural circulation loop
• Heat Transfer Deterioration
• WOFOST validation
• Sensitivity analysis
• CO2 mustard
• Multi crop simulation models
• Carbon dioxide combinations
• Trifolium alexandrinum
• CO2 concentration
• Feed and draught
• Rumen of He Buffalo
• BMC Pediatrics
• Pediatric Intensive Care Unit
• Arterial blood gas analysis
• Transcutaneous carbon dioxide monitoring
• Agronomical manipulations
• Transplanted rice
• Water imponding
• Growth parameters
• BMC Biotechnology
• Fatty acid methyl ester
• Candida antarctica lipase B
• Waste animal fat
• Methanol inhibition