Production of Activated Carbon from Pyrolysis of Coconut Shells PDF Download
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Author: Mastura Yusoff
Publisher:
ISBN:
Category : Chemical engineering
Languages : en
Pages : 144
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Book Description
Author: Mastura Yusoff
Publisher:
ISBN:
Category : Chemical engineering
Languages : en
Pages : 144
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Book Description
Author: Y. Shi
Publisher:
ISBN:
Category :
Languages : en
Pages : 9
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Author: C. John Kirubakaran
Publisher:
ISBN:
Category :
Languages : en
Pages :
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Author: Intratec
Publisher: Intratec
ISBN:
Category : Business & Economics
Languages : en
Pages : 102
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Book Description
This report presents a cost analysis of Powdered Activated Carbon production from coconut shell. In the process under analysis, Activated Carbon is produced via a chemical activation process using phosphoric acid. This report was developed based essentially on the following reference(s): (1) "Carbon, Activated", Kirk-Othmer Encyclopedia of Chemical Technology, 5th edition; (2) "Carbon, 5. Activated Carbon", Ullmann's Encyclopedia of Industrial Chemistry, 2010 Keywords: Chemical Activation Process, Phosphoric Acid, Activated Charcoal, Activated Coal, Carbo Activatus
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: Terachai Suravattanasakul
Publisher:
ISBN: 9789746394710
Category : Carbon, Activated
Languages : en
Pages : 252
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Book Description
The research objective was to produce activated carbon from palm-oil shells by one step pyrolysis and steam activation in a fixed bed reactor with the diameter of 100 mm. The studied variables were temperatures, times, palm-oil shells sizes and flow rates of air. The results showed that the optimum condition was 1.18-2.36 mm of palm-oil shells at 750 C for 2 hr with air flow rate of 0.72 nl/min, using steam as an activating agent. The characteristics of the resulted activated carbon with the yield of 19.66% were bulk density of 0.5160 g/cm3, 6.03% ash, iodine number of 620.16 mg/g, methylene blue number of 176.75 mg/g and 559.48 m2/g B.E.T. surface area. In addition, it had been found that when there was an adding of pyrolysis time with air before steam activation led to higher porosity development than one step pyrolysis and steam activation. From these experimental data, it was observed that the maximum surface area and adsorption capacity could be obtained from using 200 g of 1.18-2.36 mm of palm-oil shells at 750 C for 3 hr by adding pyrolysis with air for 30 min (0.72 nl/min) before steam activation. The resulting characteristics of the final product with the yield of 12.18% were bulk density of 0.5048 g/cm3, 7.54% ash, iodine number of 766.99 mg/g, methylene blue number of 189.20 mg/g and 669.75 m2/g B.E.T. surface area.
Author: Roop Chand Bansal
Publisher: CRC Press
ISBN: 1420028812
Category : Science
Languages : en
Pages : 498
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Book Description
High surface area, a microporous structure, and a high degree of surface reactivity make activated carbons versatile adsorbents, particularly effective in the adsorption of organic and inorganic pollutants from aqueous solutions. Activated Carbon Adsorption introduces the parameters and mechanisms involved in the activated carbon adsorption
Author: Tahani Abdoh M. Assiri
Publisher:
ISBN:
Category : Carbon, Activated
Languages : en
Pages : 0
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Book Description
This paper is based upon factors affecting the activation of carbon prepared with coconut shells. A thorough literature review has been conducted whereby previous research into the subject is cited, specifically for the case of coconut shells as raw material for carbon activation. The methodology adopted for this research has been detailed, and the corresponding results obtained have been tabled, graphed, and subsequently discussed. Four factors were found to affect the quality of activated carbon produced: namely, inert gas flow rate, impregnation ratio, activation temperature, and activation time. Iodine number, methylene blue number, and surface area were used to evaluate the quality of the prepared samples. Lastly, ANOVA analysis was conducted to observe the influence of each of the four factors on the activated carbon samples. For iodine number, no factor was found to be statistically significant. For methylene blue number, acting agent was found to be significant and surface area was affected by activation temperature --
Author: Michael Z. Hauschild
Publisher: Springer
ISBN: 9401797447
Category : Technology & Engineering
Languages : en
Pages : 345
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Book Description
This book offers a detailed presentation of the principles and practice of life cycle impact assessment. As a volume of the LCA compendium, the book is structured according to the LCIA framework developed by the International Organisation for Standardisation (ISO)passing through the phases of definition or selection of impact categories, category indicators and characterisation models (Classification): calculation of category indicator results (Characterisation); calculating the magnitude of category indicator results relative to reference information (Normalisation); and converting indicator results of different impact categories by using numerical factors based on value-choices (Weighting). Chapter one offers a historical overview of the development of life cycle impact assessment and presents the boundary conditions and the general principles and constraints of characterisation modelling in LCA. The second chapter outlines the considerations underlying the selection of impact categories and the classification or assignment of inventory flows into these categories. Chapters three through thirteen exploreall the impact categories that are commonly included in LCIA, discussing the characteristics of each followed by a review of midpoint and endpoint characterisation methods, metrics, uncertainties and new developments, and a discussion of research needs. Chapter-length treatment is accorded to Climate Change; Stratospheric Ozone Depletion; Human Toxicity; Particulate Matter Formation; Photochemical Ozone Formation; Ecotoxicity; Acidification; Eutrophication; Land Use; Water Use; and Abiotic Resource Use. The final two chapters map out the optional LCIA steps of Normalisation and Weighting.
Author: Arno Carl Fieldner
Publisher:
ISBN:
Category : Carbon
Languages : en
Pages : 32
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Book Description
