Нефтехимия, Год журнала: 2023, Номер 63(6), С. 867 - 877
Опубликована: Дек. 15, 2023
Нефтехимия, Год журнала: 2023, Номер 63(6), С. 867 - 877
Опубликована: Дек. 15, 2023
Catalysts, Год журнала: 2025, Номер 15(3), С. 203 - 203
Опубликована: Фев. 21, 2025
Using anthropogenic carbon dioxide (CO2) as a feedstock for the production of synthetic fuel has gained significant attention in recent years. Among various CO2 conversion pathways, natural gas via methanation holds promise because its potential both recycling and renewable energy storage. Nickel (Ni) ruthenium (Ru) are dominant metals employed catalysts reaction. This review summarizes research landscape Ni- Ru-based over last ten Bibliometric analysis revealed that China highest number publications, Chinese Academy Sciences is foremost academic institution, International Journal Hydrogen Energy leading journal this area research. The publication trend on Ni-based published at almost four times rate catalysts. Despite growth research, problems with catalyst stability kinetics still exist. latest catalytic systems, including supported, bimetallic, single-atom fundamental challenges associated process reviewed. provides new angle future studies based non-noble Ni noble Ru opens way additional area.
Язык: Английский
Процитировано
1Journal of Catalysis, Год журнала: 2023, Номер 428, С. 115202 - 115202
Опубликована: Ноя. 10, 2023
Язык: Английский
Процитировано
11International Journal of Hydrogen Energy, Год журнала: 2025, Номер 105, С. 719 - 734
Опубликована: Янв. 26, 2025
Язык: Английский
Процитировано
0Frontiers in Chemistry, Год журнала: 2025, Номер 13
Опубликована: Фев. 25, 2025
The conversion of carbon dioxide (CO2), a major greenhouse gas, into light olefins is crucial for mitigating environmental impacts and utilizing non-petroleum-based feedstocks. Thermo-catalytic CO2 transformation valuable chemicals offers promising solution to this challenge. This study investigates the effect potassium (K) manganese (Mn) promoters on C2H4 selectivity over CoFe-ZSM-5 zeolites. Structural characterization via FTIR, pyridine-FTIR, PXRD confirmed successful incorporation K Mn at 80°C without significant structural changes zeolite framework. BET analysis revealed that metal did not substantially alter surface area, while SEM TEM analyses preservation ZSM-5 spherical morphology. Fixed-bed reactor experiments conducted 350°C 20 bar demonstrated synergistically enhanced efficiency toward C2H4. K-Mn/4Fe4Co-ZSM-5 catalyst (modified with 4% Co Fe) exhibited highest performance, achieving 97% olefin selectivity. Furthermore, reduce CO Co-Fe-ZSM-5 catalyst. These findings underscore critical role in facilitating efficient activation directing reaction pathway products.
Язык: Английский
Процитировано
0Ceramics International, Год журнала: 2025, Номер unknown
Опубликована: Март 1, 2025
Язык: Английский
Процитировано
0Waste and Biomass Valorization, Год журнала: 2025, Номер unknown
Опубликована: Апрель 14, 2025
Язык: Английский
Процитировано
0International Journal of Hydrogen Energy, Год журнала: 2025, Номер unknown
Опубликована: Апрель 1, 2025
Язык: Английский
Процитировано
0ACS Sustainable Chemistry & Engineering, Год журнала: 2023, Номер 11(19), С. 7489 - 7499
Опубликована: Май 4, 2023
CO2 hydrogenation is one of the most effective solutions for mitigating excessive emissions. In this work, CuPdx/γ-Al2O3 (x = 0.05–5.7 wt %) catalysts were prepared and applied in to methanol. The results showed CuPd0.1/γ-Al2O3 achieved excellent activity. It demonstrated that Pd species highly dispersed on γ-Al2O3 support at atomic level separated from Cu nanoparticles by AC-HAADF-STEM, rather than forming CuPd alloy. Part hydrogen activated isolated atoms overflows onto influences reduction CuO, thus effectively increasing Cu+/(Cu++Cu0) ratio which correlated with prominent performance. On other hand, we found CH3OH retained catalyst surface can be further reformed into CO, significantly reduces selectivity CH3OH. To limit reforming, activity test a fixed bed different weight hourly space velocity was performed, where remarkable methanol yields 5.9 mmol/gcat./h obtained.
Язык: Английский
Процитировано
8Case Studies in Chemical and Environmental Engineering, Год журнала: 2024, Номер 10, С. 100925 - 100925
Опубликована: Авг. 31, 2024
The catalytic thermal conversion of carbon dioxide is essential for capture, storage, and utilization, helping to reduce CO2 emissions potentially stimulating future economic activities. Zeolite Y, ZSM-5, BEA, A were synthesized using the hydrothermal technique from Indonesian kaolin examine potential use zeolite as a catalyst without metal nanoparticles. In absence metal, activity methanation relies solely on textural properties basicity-acidity. Y exhibits highest at 36.64 % attained 100 CH4 selectivity 400 °C. exceptional high basicity level 1.02 mmol/g, shown by CO2-TPD analysis, relatively low acid site concentration 1.48 determined NH3-TPD analysis. A, demonstrated 29.85 %, 23.86 12.15 respectively. Stability studies revealed ZSM-5 maintains methane (CH4) 94 which only slightly lowered 6 30 hours, while achieved 90 26 hours. presence mesopores in reduced coke or production, maintaining crystalline framework.
Язык: Английский
Процитировано
2Chemical Engineering Science, Год журнала: 2023, Номер 282, С. 119247 - 119247
Опубликована: Сен. 3, 2023
Язык: Английский
Процитировано
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