Activated Carbon – Francisco Rodriguez Reinoso

With its immense capacity for adsorption from gas and liquid phases, activated carbon is a unique material. It occupies a special place in terms of producing a clean environment involving water purification as well as separations and purification in the chemical and associated industries. In these roles, it exhibits a remarkable efficiency as the international production is a littie more than half a million tonnes per year, with perhaps 2 million tonnes being in continuous use. This is equivalent to the allocation of 200 mg per person of the world population to be compared with the world use of fossil fuels of 2 tonnes per person of the world population.

Much is already written about activated carbon such that the Google search engine will offer over one million pages from the Internet. These pages are mosdy descriptive and uncoordin- ated. Currendy, there exists a need for a text which establishes a framework into which fac- tual information can be located and explained. Further, carbon science has expanded rapidly in recent years with considerable relevance to an understanding of activated carbon. Again, these information are mostly uncoordinated and need to be assimilated into a comprehen- sive story. This assimilation is the purpose of this book.

An effective use of activated carbon requires a knowledge about the structure of its poros- ity, obtained from equilibrium data, namely the pore-size distributions of the microporos- ity in particular, of the pore-size distributions of the mesoporosity, of the composition of the carbon surfaces onto which adsorption occurs, and knowledge of the dynamics of adsorption to indicate its effectiveness in industrial use. The authors experienced, during the course of writing, that two areas of major conflict exist within the scientific literature.

Rather than simply describe these, attempts were made to resolve these two conflicts. First, the area of crystallography continuously pre- sents the concept of the graphitic micro-crystallite as being the constituent of all carbons, the concept being carried over into the literature of Raman Spectroscopy. There is no evidence from adsorption studies that graphitic surfaces are part of activated carbons. In fact, the con- cept of the crystallite was flawed almost from the moment of its inception, several decades ago, and has blocked a realistic understanding of structure in both non-graphitizable and graphitizable carbons.

This is a short excerpt from the opening of “” by Unknown, quoted for review and introduction purposes. All rights belong to the copyright holders.

Book Information

• Unique ID: 0339e9cdd573611a
• File Extension: .pdf
• File Size: 38,677,620 bytes (36.886 MB)
• Title: –
• Author: Unknown
• ISBN: 0080444636
• Pages: 543
• Language: English (en)

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