Fuel, Journal Year: 2024, Volume and Issue: 385, P. 134093 - 134093
Published: Dec. 16, 2024
Language: Английский
Fuel, Journal Year: 2024, Volume and Issue: 385, P. 134093 - 134093
Published: Dec. 16, 2024
Language: Английский
Chemical Engineering Journal, Journal Year: 2024, Volume and Issue: 491, P. 151668 - 151668
Published: April 26, 2024
Integrated carbon capture and utilisation (ICCU) is an emerging technology for simultaneous CO2 adsorption conversion into value-added products. This provides a more sustainable approach compared to storage. Dual-functional materials (DFMs) that couple sorbents (e.g. CaO) catalysts Ni) enable direct of sorbed reactions like dry reforming methane (DRM). However, the potential interactions between sorbent catalyst components within DFMs may induce distinct mechanisms individual materials. Elucidating these synergies interfacial phenomena vital guiding rational design DFMs. article investigates respective roles Ni/SiO2 sol–gel synthesised CaO in integrated via (ICCU-DRM) using decoupling approach. Through decoupled reactor experiments, it found activates react with deposits from CH4 decomposition, achieving maximal CO H2 yields 43.41 mmol g−1 46.78 as well 87.2 % at 650 °C. Characterisation shows coke would encapsulate Ni nanoparticles be active Boudouard reaction, indicating sufficient catalyst-sorbent contact necessary spillover. In-situ DRIFTS reveals no obvious CH4-CaCO3 reaction occurs, chemisorption on enables reverse which further verified by DFT calculations. The findings elucidate dependent synergistic CaO/CaCO3 ICCU-DRM, highlight importance catalyst-adsorbent optimising dual-functional
Language: Английский
Citations
10Joule, Journal Year: 2025, Volume and Issue: unknown, P. 101883 - 101883
Published: March 1, 2025
Language: Английский
Citations
0Processes, Journal Year: 2024, Volume and Issue: 12(8), P. 1548 - 1548
Published: July 24, 2024
The integrated CO2 capture and utilization coupled with the reverse water-gas shift reaction (ICCU-RWGS) presents an alternative pathway for converting captured into CO in situ. This study investigates effectiveness of three calcium-based materials (natural limestone, sol-gel CaCO3, commercial CaCO3) as dual-functional (DFMs) ICCU-RWGS process at intermediate temperatures (650–750 °C). Our approach involves a fixed-bed reactor mass spectrometry situ Fourier transform infrared (FTIR) measurements to examine cyclic behavior, detailed physical chemical properties, morphology. FTIR results revealed dominance RWGS route exhibited self-catalytic activity across all materials. Particularly, natural limestone demonstrated yield 12.7 mmol g−1 100% selectivity 81% conversion. Over 20th cycle, decrease capacity was observed: CaCO3 showed reductions 44%, 61%, 59%, respectively. suggests inevitable deactivation during reactions process, while skeleton structure effectively prevents agglomeration Ca-based materials, particularly CaCO3. These insights, cost-effectiveness CaO-alone DFMs, offer promising avenues efficient economically viable processes.
Language: Английский
Citations
3Chemical Engineering Journal, Journal Year: 2024, Volume and Issue: 500, P. 157464 - 157464
Published: Nov. 1, 2024
Language: Английский
Citations
3Energy, Journal Year: 2024, Volume and Issue: unknown, P. 134227 - 134227
Published: Dec. 1, 2024
Language: Английский
Citations
3Carbon Capture Science & Technology, Journal Year: 2024, Volume and Issue: unknown, P. 100345 - 100345
Published: Nov. 1, 2024
Language: Английский
Citations
1Bioresource Technology, Journal Year: 2024, Volume and Issue: unknown, P. 131895 - 131895
Published: Nov. 1, 2024
Language: Английский
Citations
0Fuel, Journal Year: 2024, Volume and Issue: 385, P. 134093 - 134093
Published: Dec. 16, 2024
Language: Английский
Citations
0