This thesis presents a combination of material synthesis and characterization with process modeling. In it, the CO2 adsorption properties of hydrotalcites are enhanced through the production of novel supported hybrids (carbon nanotubes and graphene oxide) and the promotion with alkali metals. Hydrogen is regarded as a sustainable energy carrier, since the end users produce no carbon emissions. However, given that most of the hydrogen produced worldwide comes from fossil fuels, its potential as a carbon-free alternative depends on the ability to capture the carbon dioxide released during manufacture. Sorption-enhanced hydrogen production, in which CO2 is removed as it is formed, can make a major contribution to achieving this. The challenge is to find solid adsorbents with sufficient CO2 capacity that can work in the right temperature window over repeated adsorption-desorption cycles.
The book presents a highly detailed characterization of the materials, together with an accurate measurement of their adsorption properties under dry conditions and in the presence of steam. It demonstrates that even small quantities of graphene oxide provide superior thermal stability to hydrotalcites due to their compatible layered structure, making them well suited as volume-efficient adsorbents for CO2. Lastly, it identifies suitable catalysts for the overall sorption-enhanced water gas shift process.
Описание: Written by 30 worldwide leading scientists, experts and medical doctors, this comprehensive book provides a broad, multi-disciplinary overview on hemoperfusion. The research of the subject was started by TMS Chang — the pioneer and inventor of microcapsules who is well known as the 'the Father of Microcapsules.' The book presents the numerous recent developments in this field. A series of tailor-made, toxin removing and cell separating adsorbents or microcapsules with unique properties have been designed, prepared and produced for use in the treatment of diseases such as autoimmune disease, drug over-dose, acute inflammation, etc., in which ordinary medical treatments shows little or no efficacy. Various modalities of hemoperfusion treatments and results are described to provide readers with up-to-date information on the highly interdisciplinary field of hemoperfusion.
Описание: This book presents a summary of the current use of carbon nanomaterials for water treatment, drug delivery, systems and nanosensors. The first chapter elucidates the adsorption process phenomenon. The third chapter presents the kinetic and equilibrium models of adsorption, processing of experimental data and adsorption process peculiarities.
Описание: This book presents a summary of the current use of carbon nanomaterials for water treatment, drug delivery, systems and nanosensors. The first chapter elucidates the adsorption process phenomenon. The third chapter presents the kinetic and equilibrium models of adsorption, processing of experimental data and adsorption process peculiarities.
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