Rapid Absorption and Desorption of CO
In this work, we proposed a new strategy to improve the absorption capacity of amino-based functionalized DESs and inhibit viscosity increase by changing the proton transfer site from –NH 2 to –N═ to prevent …
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High-efficiency absorption of low NOX concentration in …
The model diagram of the microreactor is shown in Fig. 2, and its main features consist of the following components: liquid phase inlet 2, gas phase inlet 1, mixed liquid collection chamber (3,6,8), droplet cutting sieve plate 4, mixing chamber separator 5, mixing reaction microchannel 7, and mixed liquid outlet 9.Taking the microreactor involved in this experiment …
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Unexpectedly efficient ion desorption of graphene-based …
Here, we experimentally demonstrate the rapid and efficient desorption of ions on magnetite-graphene oxide (M-GO) by adding low amounts of Al 3+. The corresponding …
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High Fe utilization efficiency and low toxicity of Fe3C@Fe0 …
Zero valent iron (Fe 0) has been used to remove organic contaminants.However, its low utilization efficiency and high toxicity have hindered its application. In this study, Fe 3 C@Fe 0-loaded biochar (Fe 3 C@Fe 0 @BC) with 40.1% Fe content and slight Fe release presented excellent removal efficiency, stability, and reusability for tetracycline hydrochloride …
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Recent Progresses in Adsorption Mechanism, Architectures, …
However, most of adsorbents are limited in the practical application because of secondary pollution, low recovery and/or low adsorption efficiency, whereas electrosorb technology (EST), also called capacitance deionization technology (CDI) based on ion electrosorption, has attracted much attention in the field of seawater desalination and water ...
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High-efficiency CO 2 separation using hybrid LDH-polymer …
We believe this highly-efficient CO 2 separation performance is based on the synergy of enhanced solubility, diffusivity and chemical affinity for CO 2 in the sub-nanometre …
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Scaled solar-driven atmospheric water harvester with low …
The proposed device is equipped with high-efficiency and low-cost SLP as the selected adsorbent, which can achieve high-performance adsorption-desorption cycle through a daily operation strategy. The proposed system can achieve completely passive water production in arid areas, thereby bringing new water solutions to arid areas.
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Efficient ozone decomposition by amorphous Mn–Ni …
The rapid desorption of intermediate peroxides ... it is of great scientific significance and application value to develop a stable water-resistant Mn-based catalyst with high efficiency and low cost for ozone removal. ... The ratio of Mn 3+ and Mn 4+ concentration in Mn1Ni1 was estimated to be 2.21 according to their peak areas, ...
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A novel ILs biphasic absorbent with low regeneration energy …
To achieve low regeneration energy consumption and low corrosion, a novel ILs nonaqueous biphasic absorbents composed of Tetraethylenepentamine (TEPA) Caprolactam …
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Adsorption and enrichment of low-concentration heavy …
Alternatively, the adsorption techniques have been well-established to remove the low-concentration heavy metal complexes from wastewater [27], [28], [29].Adsorbents such as activated carbon and clay minerals are popular choices due to their high specific surface area and cost-effectiveness, but their application is limited by the fact that their negative surface …
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20230285891 LOW-COST AND HIGH-EFFICIENCY ABSORPTION-DESORPTION …
According to the invention, the absorption process is decoupled from the desorption process, and the coordinated control of temperature-pH-liquid-gas ratio and rich liquid flow-desorption temperature in all cycles is carried out to realize the synergistic capture-regeneration-concentration of contaminants and CO 2 with high efficiency and low ...
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Enhancing low-temperature desorption performance …
For this aim, we designed a tertiary amine-based biphasic solvent through multifunctional design. Large desorption capacity, high desorption efficiency and rapid regeneration rate were achieved merely by heating to 353.15 K; such low desorption temperature would decrease the latent heat and amine degradation as well.
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LOW-COST AND HIGH-EFFICIENCY ABSORPTION-DESORPTION …
The invention relates to a low-cost and high-efficiency absorption-desorption decoupling method for contaminant-CO2 synergistic capture. According to the method, an optimization model of absorption-desorption decoupling control for contaminant-CO2 synergistic capture under different working conditions is built, the optimization objective is to obtain high-purity liquid …
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Research on CO2 capture performance and reaction …
High desorption energy consumption and low cyclic loading are critical issues limiting the application of onboard carbon capture (OCC) systems. In this study, a tetraethylenepentamine (TEPA) and 2–amino–2–methyl–1–propanol (AMP) mixed amine …
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Absorption characteristics and rheological properties of …
This study explores the synthesis and characterization of deep eutectic solvents (DES) for efficient CO 2 capture, focusing on the hydrogen bonding strength between hydrogen bond acceptors (HBA) and donors (HBD). Tetraethylenepentamine (TEPA) was quaternized with hydrochloric acid (HCl) to produce HBAs, which were then combined with various HBDs, …
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Molecularly imprinted catalytic membrane reactor for …
The refractory pollutants, such as sulfanilamide antibiotics (SAs), are widely distributed in environment [1].As one of the most common SAs, sulfamethoxazole (SMX) in the environment usually exist at a concentration range from ng/L to mg L −1 [2], [3].To prevent the accumulating in the organism and causing lasting damage to the organism's immune system, …
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Study on absorption and regeneration performance of EHA …
As a primary amine, Monoethanolamine (MEA) is typically used in an aqueous solution in a concentration ranging from 15 wt% to 30 wt%. Although MEA absorbent is widely used [14, 15], its regeneration energy consumption is very high [16, 17].Reducing energy consumption can be achieved by developing new absorbents and improving process …
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Research on Activation Mechanisms In Situ during Rapid …
The carbon consumption was 0.13%, 0.24%, 0.17%, 0.16%, ... In the process of rapid desorption at high temperatures, Hg 0 that was physically adsorbed moved violently, ... HCl …
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Amine-incorporated adsorbents with reversible sites and high …
1. Introduction. The rapid increase of atmospheric CO 2 concentration is a threat to the ecosystem on Earth [1], [2].To reduce CO 2 emissions, it is essential to achieve carbon capture in exhaust gases caused by the consumption of fossil fuels [3].In the past decades, aqueous solutions of amines have been applied as adsorbents for CO 2 capture in industrial …
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Rapid degradation of high-concentration antibiotic via …
Fig. 3 (b) shows the N 2 adsorption-desorption isotherms and pore size distribution of the catalyst. The shape of the isotherms was typical type Ⅳ with a hysteresis loop of H 3, revealing the presence of slit-like mesopores/macropores in the catalyst [38], [39].As shown in Fig. 3 (b), the specific surface area, total pore volume, and average pore size of MIL-53(Fe) …
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Cyanidation Solution | What is an Efficient and Rapid Desorption
Xinhai's high-efficiency, low-consumption and fast desorption electrolysis device is mainly composed of two parts: desorption and electrolysis. The processes of desorption and electrolysis are separated, so that the solvent is carried out in a comprehensive desorption tower, and the electrolysis of precious liquid is completed in a separate ...
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Facile synthesis of structured adsorbent with enhanced …
Structured adsorbents for direct air capture of CO2 were synthesized using a facile method. A hydrophobic binder was used to attach polyamine-loaded mesoporous silica powder to ceramic honeycombs. The structured adsorbents exhibited high uptake, fast adsorption kinetics, enhanced stability, and low gas pressure drop. Simulations reveal its high productivity and …
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Energy consumption and current efficiency in high-concentration …
Download scientific diagram | Energy consumption and current efficiency in high-concentration urine. Left: With the BDD anode. Right: With the TDIROF anode. Full symbols: 20 mA cm −2, grey ...
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A critical review on ultrasound-assisted adsorption and desorption …
Ultrasound is widely applied in the desorption field due to its excellent characteristics, low power consumption, absence of by-products, and high efficiency, etc. In 6.1 Applications of ultrasound-assisted desorption, 6.2 Ultrasound-assisted desorption mechanism, the focus will be on some mechanisms and applications of ultrasonic desorption.
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Rapid desorption of CO2 from deep eutectic …
Herein we developed a new family of polyamine-based deep eutectic solvents (DESs) dedicated to reduce energy consumption, avoiding the formation of hazardous molecules, aiming at low solvent losses and robust …
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Ultra-efficient decontamination via functionalized reactive
Based on the above analysis, it would be reasonable to propose a perovskite-functionalized REM to enhance the activation efficiency of PMS, simultaneously promoting the removal of micropollutants with high efficiency and low energy consumption while maintaining the stability of REM and overcoming the application limitations of catalyst recovery ...
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Highly efficient portable atmospheric water harvester with …
However, designing a device equipped with both the rapid and high yield water production properties is still a challenge ... thus improving both the energy utilization and desorption efficiency. For the heating temperature, a value of ∼135 °C was chosen considering the strong affinity between silica gel and water molecules, which ensured ...
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Low-Temperature Desorption of CO2 from Carbamic Acid for …
The high temperature requirement for the desorption of absorbed CO 2 is one of the issues for the widespread use of direct air capture (DAC), which is a promising technology …
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Novel tri-solvent amines absorption for flue gas CO2 …
Consequently, this facilely prepared tri-solvent amine system, characterized by high capture efficiency and low energy consumption, holds promise for achieving …
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A high-efficient and low-consumption nanoimprint method …
Since the composite PEM is directly peeled off from the same AAO template, this method has many advantages, such as large area (up to 100 cm 2 for single, and 1800 cm 2 for multiple), high efficiency (<1 min), low energy consumption, no additional chemical consumption, high throughput and low cost.
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