Synthesis and Characterization of Activated Carbon from Lignocellulosic Materials by Phosphoric Acid Activation PDF Download

Author: Yanping Guo
Publisher:
ISBN:
Category : Carbon, Activated
Languages : en
Pages : 374

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Book Description

Author: Virginia Hernández Montoya
Publisher: BoD – Books on Demand
ISBN: 9535101978
Category : Science
Languages : en
Pages : 104

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Book Description
The present book discusses the principal lignocellulosic precursors used in the elaboration of activated carbons in different countries such as Asia, America, Europe and Africa; the different methods and experimental conditions employed in the synthesis of activated carbons, including one analysis of the principal stages of the preparation such as carbonization and activation (i.e., chemical or physical activation). Also, the recent and more specialized techniques used in the characterization of activated carbons are discussed in this book. For example, the techniques employed to determine textural parameters (mercury porosimetry and gas adsorption isotherms at 77 K) and different spectroscopies to determine chemical functionality (Raman, FT-IR, etc.) and other X-Ray techniques. Additionally, an overview of the application of activated carbons obtained from lignocellulosic precursors for wastewater treatment. Specifically, the analysis and discussion are focused on the advantages and capabilities of activated carbons for the removal of relevant toxic compounds and pollutants from water such as heavy metals, dyes, phenol, etc. Finally, the use of pyrolysis method for the valorization of two Mexican typical agricultural wastes (orange peel and pecan nut shell) for energy and carbon production is considered in this book.

Author: Harry Marsh
Publisher: Elsevier Science Limited
ISBN: 9780080444635
Category : Science
Languages : en
Pages : 536

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Book Description
Recent years have seen an expansion in speciality uses of activated carbons including medicine, filtration, and the purification of liquids and gaseous media. Much of current research and information surrounding the nature and use of activated carbon is scattered throughout various literature, which has created the need for an up-to-date comprehensive and integrated review reference. In this book, special attention is paid to porosities in all forms of carbon, and to the modern-day materials which use activated carbons - including fibres, clothes, felts and monoliths. In addition, the use of activated carbon in its granular and powder forms to facilitate usage in liquid and gaseous media is explored. Activated Carbon will make essential reading for Material Scientists, Chemists and Engineers in academia and industry. * Characterization of porosity * The surface chemistry of the carbons, * Methods of activation and mechanisms of adsorption. * Computer modelling of structure and porosity within carbons. * Modern instrumental analytical methods

Author: Paul V. Roberts
Publisher:
ISBN:
Category : Carbon, Activated
Languages : en
Pages : 144

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Author: Marit Jagtoyen
Publisher:
ISBN:
Category :
Languages : en
Pages : 490

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Author: Daniel Kibami
Publisher:
ISBN: 9783659892677
Category :
Languages : en
Pages : 100

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Book Description

Author: H. Marsh
Publisher: Elsevier
ISBN: 9780080440309
Category : Science
Languages : en
Pages : 328

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Book Description
Activated Carbon Compendium provides a critical in-depth analysis of recent research into activated carbons, focussing on their wide-ranging applications, and the complexity and flexibility in their manufacture and use. Professor Harry Marsh has selected and reviewed 27 key papers originally published in Carbon over the last five years. The compendium represents an indispensable review of key work in the area. Areas include: The Activation Process, Modifications to Porosity, Properties of Activated carbons, Applications, Theoretical.

Author: Yulu Diao
Publisher:
ISBN:
Category :
Languages : en
Pages : 244

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Author: Eric Paul Leimkuehler
Publisher:
ISBN:
Category : Carbon
Languages : en
Pages : 56

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Book Description
This thesis investigates the production of activated carbon, an environmentally friendly adsorbent which is used in many industries. Activated carbon can be derived from many different sources and produced in varying production processes. The raw materials used, activation process, and process parameters determine the physical properties and performance characteristics of the resulting carbon. Modifying these activation properties determines the porosity and pore volume distribution in the carbon. In preparation for commercial production, detailed mass balances are needed to quantify yield, quantify the masses of waste streams, understand the propensity to recycle the KOH, and to provide a benchmark for further optimization. A mass balance on the reaction of phosphoric acid and KOH with carbon is provided. Additionally, analyzing carbons can be expensive and time consuming, making it important to identify physical properties which indicate that a carbon may have favorable performance characteristics. The following paper proposes three ways of screening carbons: observing the mass loss in the chemical activation process, measuring the density of the carbon, and testing the methane uptake of the carbon in a rapid uptake fixture. Carbons made from different precursors, reacted with different activating agents, and heated at different process temperatures for different process hold times were analyzed.

Author: Chandrabhan Verma
Publisher: Royal Society of Chemistry
ISBN: 1839169877
Category : Science
Languages : en
Pages : 267

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Book Description
Activated carbon has long been used for filtering contaminants, thanks to its large surface area for adsorption. This, and other properties has led to a growing interest in activated carbon and a broader range of applications. This book explores the various forms of activated carbon, detailing how they can be prepared and characterised. The editors bring together a global team of authors from industry and academia. Their contributions include environmental and medical applications, as well as various industries. Future directions are also considered. The editors are at the Interdisciplinary Center for Research in Advanced Materials, King Fahd University of Petroleum and Minerals, Saudi Arabia. They present an up-to-date and comprehensive reference aimed at all career levels in chemistry and materials science, engineering and research across the diverse industries finding a use for activated carbon.