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Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 20 of 163 for “"Adsorption Capacity"”.
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Characterization of gas phase adsorption capacity of untreated and chemically treated activated carbon cloths
… streams. Undesired contaminants are removed by adsorption onto activated carbon. While activated carbon has been used extensively in industrial applications, little research has been performed to evaluate using activated carbon to remove low concentrations of volatile organic compounds (VOCs) …
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Methane adsorption into sandstones and its role in gas recovery from depleted reservoirs
… gas recovery and sequestration application. The adsorption process acts as a displacement mechanism in the enhanced gas recovery, therefore investigating this process will lead to a better understanding of methane recovery in the EGR-CO2 process. Despite many pilot studies on EGR-CO2 in depleted …
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Humic Substances Removal by Activated Carbon
… physical characteristics of activated carbon for adsorption of humic substances. Pore volumes of activated carbon in pores between 100 and 500 (ANGSTROM) radius were correlated with adsorption capacity. A decrease of pH in solution, lower molecular weight fractions of humic substances, smaller …
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Co2 Adsorption On Solid Sorbents
… gas emission. Major advantages of sorbent based adsorption are its low regeneration energy coupled with the elimination of corrosion and equipment degradation characteristic of amine based solvent CO2 capture systems which are the preferred industrial methods. Different CO2 capture …
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Evaluating the Effect of Composition, Structure and Functionality on Atmospheric CO2 Adsorption in Porous Solid Sorbents
… and ethylenediamine functionalization on the CO2 adsorption performance of the MOF in single-component and DAC conditions in the presence of humidity. Due to the strong chemical interactions between CO2 and amine groups, their introduction to CO2 adsorbents tends to increase adsorption capacity …
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Nanoclay-Based Solid-Amine Adsorbents for Carbon Dioxide Capture
… recyclable solid sorbent for carbon dioxide adsorption from large point sources, such as coal-fired power plants. The current commercial way to adsorb CO 2 is to use a liquid amine or ammonia process. These processes are used in industry in the "sweetening" of natural gas, but liquid based …
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Simultaneous adsorption of 11 volatile organic compounds by an activated carbon made from polystyrene sulfonic acid-based organic salt
… many different contaminants from water. The high adsorption capacity of activated carbon is linked to its high internal surface area and micro/meso- porosity. In this work an activated carbon obtained from polystyrene sulfonic acid-based organic salt was examined to simultaneously adsorb eleven …
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Activated Carbon Preparation and Modification for Adsorption
… efficient separation of butanol due to low adsorption selectivity and fouling in broth. Gas-stripping - condensation is another new butanol recovery method, however, the butanol in gasstripping stream is too low to be condensed without using expensive and energy intensive liquid nitrogen. …
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Understanding and Improving Electrochemical CO2 Capture by Supercapacitive Swing Adsorption
… One specific example is Supercapacitive Swing Adsorption (SSA). This avoids the traditional temperature swing used in amine scrubbing and instead relies on a change in the voltage applied to the supercapacitor to reversibly capture CO2. The most significant advantage of using SSA for carbon …
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The effects of metals on thermal regeneration of granular activated carbon
… could restore the spent GAC's virgin adsorption capacity, despite the metals.
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Application of synthetic molecular sieve zeolites and silica gel towards the separation of sulfur dioxide from combustion gases
… streams has not been realized. Sulfur dioxide adsorption capacities were obtained for equilibrium (non-flow) and dynamic flow conditions. Sulfur dioxide adsorption on the molecular sieves could be described by a modified Langmuir expression of the form q/q<sub>m</sub> = kc<sup>1/n</sup>/ 1 + …
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The Role of Pore Size Distribution in Competitive Adsorption on Activated Carbon
Based on these competitive adsorption mechanisms it was proposed that in order to minimize the impact of NOM on micropollutant adsorption capacity and adsorption kinetics, the adsorbent must have a wide range of micropore sizes, including pores of similar size to the target compound.
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Sulphur Chemistry in KOH-SO2 Activation of Fluid Coke and Mercury Adsorption from Aqueous Solutions
… from KOH-SO2 activation showed a comparable Hg2+ adsorption capacity (43 – 72 mg/g) with those reported in the literature (35-100 mg/g) and that of a commercial SIAC (41 mg/g). Although a larger SBET often resulted in a greater Hg2+ adsorption capacity, the benefit started to diminish when SBET …
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Evaluation and implementation of adsorption technologies for the treatment of per and polyfluoroalkyl substances
… approaches are ineffective for PFAS removal, adsorption technologies represent an effective and commercial ready treatment alternative. Although adsorbents such as granular activated carbon (GAC) and ion exchange resin (IX) are frequently applied in the treatment of PFAS contaminated waters, …
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Understanding and Optimising Carbon Disorder for High-Performance Supercapacitors
… it does not provide information on the ion adsorption capacity of the carbons. Low-temperature synthesis proves to be a promising pathway for making nanoporous carbons with smaller graphene-like domains with enhanced capacitance. HTC-600, the most disordered synthesised carbon, exhibited …
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Characteristics and Mechanisms of Heavy Metal and MTBE Adsorption on Zeolites and Applications in Permeable Reactive Barriers
… the immobilization of multiple contaminants via adsorption, precipitation, degradation, etc. The reactive media are key components of PRBs and their selection needs to consider the immobilization ability as well as permeability. Zeolites have high adsorption capacity, diverse pore structure and …
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TCAQ-based polymer for electrochemically mediated separations
… ferrocene (PVF)//PTCAQ system displayed an ion adsorption capacity much higher than previously reported literature values for capacitive or redox deionization systems.
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Assessing the Ability of Marine Plastic Waste to Adsorb Heavy Metals and Emerging Organic Contaminants from Water
… to couple these two issues and evaluate the adsorption capacity of ‘raw’ and ‘functionalised’ marine plastic waste as a low-cost novel adsorbent for the removal of contaminants from aqueous media.<br/>Four different reagents were applied to functionalise polypropylene (PP) plastic ropes …
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Synthesis of Acid Leached Diatomaceous Earth/ Amine-Functionalized Activated Carbon Composite and its Potential Application in Oily Wastewater Treatment
… was used as a chemical agent to enhance the adsorption efficiency on the surface of the activated carbon and the amine-functionalized activated carbon was used in the removal of oil from oily wastewater. Lastly, a composite was prepared using both the synthesized acid leached diatomaceous …
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