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This study focuses on the Subash Reservoir area in the Aksu Prefecture, Xinjiang, China, employing various data sources, including merged precipitation, rainfall station, digital elevation model, and land-use data. Using the FloodArea model, a refined simulation of typical torrential rain-induced flood processes in the Subash Reservoir is conducted. By analyzing the inundation depth and runoff volume, and the simulation results of two precipitation data sources are compared, and a precipitation- inundation depth relationship model is established, determining critical rainfall thresholds corresponding to the sediment-flushing gate bottom elevation, flood limit water level, spillway gate weir top elevation, and dam crest elevation. The results reveal that the FloodArea model driven by multi-source precipitation fusion data has higher accuracy and closer approximation to the actual values for the inundation depth and calculated runoff volume in the Subash Reservoir than the model driven by rain gauge precipitation data. The error simulation rates for inundation depth of the two kind of data are 8.59% and 18.67%, respectively. The cumulative 4-hour precipitation thresholds for reaching inundation levels corresponding to the sediment-flushing gate bottom elevation, flood limit water level, spillway gate weir top elevation, and dam crest elevation of the Subash Reservoir are 7.1 mm, 20.1 mm, 32.9 mm, and 44.7 mm, respectively. The results provide a theoretical reference for torrential rain-induced early flood warning in the Subash Reservoir region to enhance the capability of early flood warning for such scenarios. [ABSTRACT FROM AUTHOR]

Plasma catalytic CO2 hydrogenation to methanol over MnOx/ZrO2 catalyst was investigated in this work. A boosted methanol yield of 4.6 mg/h was obtained over MnOx/ZrO2 catalyst, while it was only 0.0 and 0.7 mg/h for ZrO2 and MnOx catalyst, respectively. The interaction between MnOx and ZrO2 was responsible for the enhanced methanol yield. It resulted in sufficient oxygen vacancy. The in situ DRIFT spectra was conducted to reveal the plasma catalytic CO2 hydrogenation to methanol reaction mechanism and the key intermediates of HCOO and CH3O species were determined. The sufficient oxygen vacancy promoted the formation of the key intermediates, especially the CH3O species. [ABSTRACT FROM AUTHOR]

Plasma‐induced CO2 hydrogenation process has received much attention, while the related plasma chemistry has not been profoundly explored. Herein, electron‐induced and thermochemical effects on CO2 hydrogenation in a dielectric barrier discharge reactor were investigated. The temperatures for the discharge pattern transition for CO2/H2, CO2/H2/N2, CO2/H2/Ar, and CO2/H2/He mixtures were 623, 623, 600, and 600 K, respectively. CO2 conversion was controlled by electron‐induced reactions and was sensitive to discharge pattern and electron density but not electron energy. In contrast, product formation was governed by the thermo‐induced chemistry. These results are useful for a better understanding of plasma‐induced CO2 hydrogenation. [ABSTRACT FROM AUTHOR]

Oxygenates production from the partial oxidation of liquid fuel is required for a cleaner combustion. The effect of Mn/Fe ratio was investigated to improve the oxygenates formation via plasma catalytic n-C5H12 partial oxidation over FeMn/Al2O3 catalyst. The oxygenates selectivities exhibited a volcano shape with the Mn/Fe ratio and the highest value of 69% was obtained at Mn/Fe ratio of 7/3. The oxygenates selectivities were dominated by both the acidity and active oxygen species of catalyst, which could be tuned by Mn/Fe ratio. A close relationship between oxygenates selectivities, acidity, and active oxygen species of catalyst was established. The higher the active oxygen species content and the lower the acidity, the higher the oxygenates selectivities. [ABSTRACT FROM AUTHOR]

Plasma catalytic CO2 hydrogenation to methanol over MnOx/ZrO2 catalyst was investigated in this work. A boosted methanol yield of 4.6 mg/h was obtained over MnOx/ZrO2 catalyst, while it was only 0.0 and 0.7 mg/h for ZrO2 and MnOx catalyst, respectively. The interaction between MnOx and ZrO2 was responsible for the enhanced methanol yield. It resulted in sufficient oxygen vacancy. The in situ DRIFT spectra was conducted to reveal the plasma catalytic CO2 hydrogenation to methanol reaction mechanism and the key intermediates of HCOO and CH3O species were determined. The sufficient oxygen vacancy promoted the formation of the key intermediates, especially the CH3O species. [ABSTRACT FROM AUTHOR]