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.
Автор: Louis A. Errede Название: Molecular Interpretations of Sorption in Polymers ISBN: 3662150018 ISBN-13(EAN): 9783662150016 Издательство: Springer Рейтинг: Цена: 6986.00 р. Наличие на складе: Есть у поставщика Поставка под заказ.
Описание: This implies that these adsorption parameters have relevance not only for swelling and drying of polymers, but also for other phenomena in which molecular sorption plays an important role, such as in chromatography and in membrane permeation.
Автор: Tokyay Название: Cement and Concrete Mineral Admixtures ISBN: 1498716547 ISBN-13(EAN): 9781498716543 Издательство: Taylor&Francis Рейтинг: Цена: 29858.00 р. Наличие на складе: Есть у поставщика Поставка под заказ.
Описание: Supplementary cementing materials and other mineral admixturesenhance the workability of fresh concrete and the durability of hardened concrete. This comprehensive reference for senior undergraduate and graduate engineering students in cement and concrete and for cement and concrete practitioners covers a wide range of mineral admixtures.
Автор: Peter Hewlett Название: Lea`s Chemistry of Cement and Concrete ISBN: 0081007736 ISBN-13(EAN): 9780081007730 Издательство: Elsevier Science Рейтинг: Цена: 33686.00 р. Наличие на складе: Есть у поставщика Поставка под заказ.
Описание:
Lea's Chemistry of Cement and Concrete, Fifth Edition, examines the suitability and durability of different types of cements and concretes, their manufacturing techniques and the role that aggregates and additives play in achieving concrete's full potential of delivering a high-quality, long-lasting, competitive and sustainable product.
Provides a 60% revision over the fourth edition last published in 2004
Includes updated chapters that represent the latest technological advances in the industry, including, but not exclusive to the production of low-energy cements, cement admixtures and concrete aggregates
Presents expanded coverage of the suitability and durability of materials aggregates and additives
Описание: This workshop brought together representatives from different areas of the cement and concrete community to discuss future trends and challenges in the field of concrete materials.
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