Biodiésel: Producción, calidad y caracterización PDF Download
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Author: Pedro Nel Benjumea Hernández
Publisher: Universidad de Antioquia
ISBN: 9587143477
Category : Biodiesel fuels
Languages : es
Pages : 174
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Book Description
Author: Pedro Nel Benjumea Hernández
Publisher: Universidad de Antioquia
ISBN: 9587143477
Category : Biodiesel fuels
Languages : es
Pages : 174
Get Book Here
Book Description
Author: Aminul Islam
Publisher: Momentum Press
ISBN: 160650505X
Category : Science
Languages : en
Pages : 197
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Book Description
The inadequacy of fossil fuel is the main driving force of the future sustainable energy around the world. Since heterogeneous catalysis is used in chemical industry for biodiesel production, achieving optimal catalytic performance is a significant issue for chemical engineers and chemists. Enormous attention has been placed in recent years on the selection of heterogeneous catalyst in biodiesel industry, where the catalyst could be facilitated highly selective toward desired products, easily handled, separated from the reaction medium, and subsequently reused. This book stresses an overview on the contributions of tailored solid acid and base catalysts to catalytic biodiesel synthesis, and the in uences of heterogeneous catalyst properties on biodiesel yield in order to develop a better understanding of catalyst design for the green production process as well as practical applications in the biodiesel industry.
Author: Bhaskar Singh
Publisher: CRC Press
ISBN: 1000636755
Category : Science
Languages : en
Pages : 310
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Book Description
Advanced Nanocatalysts for Biodiesel Production is a comprehensive and advanced book on practical and theoretical concepts of nanocatalysts dealing with future processing techniques towards environmental sustainability. The book critically discusses on latest emerging advanced nanocatalysts for biodiesel production aimed at reducing complexities and cost in the quest to meet future energy demands. Efforts have been made at clarifying the scope and limitations of biodiesel production in large-scale commercialization. The book discusses the size-dependent catalytic properties of nanomaterials and their working mechanisms in biodiesel production. Life cycle assessment of optimized viable feedstock from domestic as well as industrial waste is also addressed to improve the efficiency of biodiesel production. The book will be a valuable reference source for researchers and industrial professionals focusing on elementary depth analysis of nanocatalyst multifunctional technological applications in seeking key ideas for mimicking biodiesel production towards ecology and the economy. Key Features Provides a comprehensive environmental assessment of advanced nanocatalysts for biodiesel production to meet tha world’s energy demands Discusses the green platform-based nanocatalysts like metal oxides/sulphides, 2D layered material synthesis and their relevance for biodiesel production. Presents a pathway for cheaper, cleaner and more environmentally friendly processing techniques for biodiesel production
Author: Farid M. Gumerov
Publisher: Nova Science Publishers
ISBN: 9781634843102
Category : Science
Languages : en
Pages : 184
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Book Description
A catalyst is a material of constant composition, which accelerates the rate of a chemical reaction by providing a suitable reaction pathway with the lowest activation energy. As the activation energy is lower, more reaction products are formed in the same period of time. Most catalytic reactions encountered in hydrocarbon processing are carried out with porous catalysts to provide a sufficient surface area for the metal dispersion and the ensuing reaction. These catalysts gradually lose their catalytic activity, usually through structural changes, poisoning, or the deposit of extraneous material. A catalyst which can no longer exhibit the necessary activity and/or is specificity required by the user is referred to as a "spent catalyst". Catalysts are critical to the chemical industry and are now used in most industrial chemical processes. Along with the rapid development and wide application of catalysis technology, the amounts of different spent catalysts are increased from year to year. The physical properties of spent catalysts, as well as their composition, are generally different from those of fresh catalysts. For example, spent hydrotreating catalysts contain metal sulfides and coke, and may have additional contaminants that were not present in the fresh catalyst. Catalyst regeneration involves the processing of spent catalysts in order to make them reusable. This is done by restoring the initial properties of spent catalysts and thus restoring their efficiency through a process called regeneration of catalysts. Traditional methods of vapor-air regeneration are energy-consuming and severely limit the number of regeneration cycles. Using supercritical fluid CO2-extraction process, according to some estimates, provides a two-fold energy savings and an increasing number of regeneration cycles possible. This book gathers a series of studies describing new methods for the regeneration of heterogeneous catalysts for important industrial chemical processes. In this book we propose new extraction techniques using supercritical fluid extraction (SFC), which seems to be one of the most promising as a green reaction medium. The feasibility of using supercritical fluid ?2 extraction process was investigated in particular for spent catalyst regeneration. The low regeneration temperature of supercritical carbon dioxide eliminates the risk of thermal deterioration of the catalyst (namely the collapse of the pores), prevents the reduction of the surface area and the sintering, and allows regeneration of catalysts with an activity close to that of fresh catalysts. The results of the implementation of the supercritical fluid ?2 extraction process with respect to samples of industrial deactivated catalysts are provided. A comparison of the characteristics of the regenerated catalyst samples by traditional approaches and the SC-CO2 extraction process is carried out. The possibility of using a supercritical fluid CO2 impregnation technique in the synthesis of a palladium catalyst is also studied.
