Catalytic reactor engineering bridges the active-site scale and industrial-reactor scale, with kinetics as primary bottleneck in scale-up. The main challenge is conceptualizing active site formulating reaction mechanism, leading to multiple approaches without clear guidance on their reliability for design. This work assesses different conceptualization reaction-mechanism formulation selective oxidation over a complex multi-metal catalyst. It integrates atomistic-scale insights from periodic...

Abstract Carbon dioxide (CO 2 ) is a major greenhouse gas produced by anthropogenic activities, such as industrial processes and energy consumption. This study focuses on CO adsorption, widely used method, specifically dynamic capture from the atmosphere using ammonia-modified granular activated carbon (OXA-GAC). The research integrates experimental investigations with mathematical modeling to optimize adsorption process. A numerical solution for mass balance equations, formulated partial...

In this work binary Al2O3-ZrO2 composites with 25, 50, and 75%, w/w Al2O3 were synthesized by the sol-gel method, to find out better amount that improve texture, structure, morphology. The presented high surface area, porosity microcrystalline structure due cations dispersion induced a good intermingling of components. We found include AlO4 (tetrahedral), AlO5 (pentahedral) AlO6 (octahedral) polyhedral units. An increment species for low in was observed. This possibly related segregated...

Abstract Atrazine is a commonly used herbicide in the Mexican agricultural industry even though it hazardous for human and animal health. Before reaching its mineralization, this infiltrates through soil, producing toxic compounds contaminating groundwater sources. Considering that Aspergillus niger (A. niger) filamentous fungus degrades pectin, cellulose, other organic polymers, study analyzes use to accelerate atrazine mineralization under optimal parameters of temperature, soil humidity,...

Abstract The hydrodesulfurization (HDS) of dibenzothiophene (DBT) is investigated over a commercial NiMoP/γ-Al 2 O 3 catalyst in micro trickled bed reactor (Micro-TBR) at operating conditions reactive distillation (RD) column. An analysis with and without reaction carried out to have first understanding on the complex interaction between kinetics transport phenomena. A set well-accepted criteria evaluated elucidate presence heat mass limitations. Residence time distribution (RTD) experiments...

Abstract Edible oils, used in restaurants and households, have become a potential source of environmental pollution because their residuals are indiscriminately poured into rivers lakes. One cost-effective sustainable way to treat this waste is using biomass the production biofuels, such as biodiesel. The main reactions for obtaining biodiesel catalyzed homogeneous phase, basic or acid solutions (NaOH H 2 SO 4 , respectively) heterogeneous porous material with without metals. interesting...

In the Mexican croplands are generated large amounts of agroindustrial wastes that usually not exploited. Damaged fruits wasted in municipality Tres Valles, Veracruz, an excellent feedstock to produce ethanol, since do need a sophisticated pretreatment and have high fermentable sugar concentrations. this work is described ethanol production from damaged by new strain Saccharomyces cerevisiae isolated agave sp. wastes. Fermentations were carried out batch repeated cultures using biocatalysts...

Abstract Fly ash hydration in the liquid phase has been studied by employing temperature, time, and water/fly weight ratio as variables. The results show that temperature time have a large positive effect surface area development of hydrated ashes (due to formation tetracalcium aluminate) whereas seems be negative but its influence is very small. Desulfurization tests carried out with some these fly ashes. Tests consisted exposing solid for 1 h an N2/SO2 gas stream containing 500 ppm SO2....

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Abstract Reactions involved in photocatalytic hydrogen production through water splitting combined with a hole scavenger involve several stages that make kinetic analysis quite complicated. In the present work, model for of has been developed based on competitive adsorption, considering decomposition an organic molecule coupled to hydrolysis splitting. Parameter estimation is performed by using Levenberg‐Marquardt method. Model validation results give strength adsorption acetol and acetaldehyde.

Abstract In this work, the influence of pressure and temperature experimentally applied on reactive distillation (RD) under lower conditions than conventional hydrotreating (HDT) processes, hydrodesulfurization (HDS) reaction 4,6–dimethyldibenzothiophene (4,6–DMDBT) molecule experimental performance a down-flow micro trickle bed reactor (micro-TBR) with n–dodecane decalin were studied. Thermodynamic analyses to evaluate hydrogen solubility in liquid hydrocarbons evaporation for as lineal...

Abstract Cellulose can be used to produce biofuels and many other products like pharmaceutical goods, food supplements, cosmetics, bio-plastics, etc. Lignocellulosic materials, O . ficus indica residuals, are a heterogeneous biopolymer formed mainly by lignin, hemicellulose cellulose. Lignin provides protection the plants against chemical microbial degradation, but it degraded white rot fungi species, Pycnoporus cinnabarinus Since cellulose molecules arranged in regular bundles enveloped...