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This research was supported by the National Research Institute for Earth Science and

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**7. Acknowledgments** 

**8. References** 

43–50


**7** 

*Colombia* 

**Thermodynamic of the** 

**Interactions Between Gas-Solid and** 

Vanessa García-Cuello1, Diana Vargas-Delgadillo1,

 *Porosos y Calorimetría, Universidad de Los Andes* 

**Solid-Liquid on Carbonaceous Materials** 

Yesid Murillo-Acevedo1, Melina Yara Cantillo-Castrillon1, Paola

Rodríguez-Estupiñán1, Liliana Giraldo1 and Juan Carlos Moreno-Piraján2 *1Facultad de Ciencias, Departamento de Química, Universidad Nacional de Colombia 2Facultad de Ciencias, Departamento de Química, Grupo de Investigación en Sólidos* 

For decades the man has had to face one of the major problems resulting from technological development and global population growth, environmental pollution, which has impacted on the different systems of life. The impacts of technological progress attained by man, have necessitated the establishment of international rules and regulations that set limits and establish a balance between development and the effects caused by the same (**Rodríguez 2003, Callister 2007, Rodriguez-Reinoso, 2007**). For this reason, we have launched various alternative solutions to environmental problems, including the synthesis and use of porous materials from organic waste or waste products with high carbon content, has been

Activated carbon is a material that consists of microcrystals elementary hexagonal planes which are not well targeted, but displaced relative to each other and overlapping each other, so they have a high percentage of highly disordered structure. In fact there are hexagonal folding sheets with spaces of varying size (usually less than 2 nm) which make up the porosity of the material (**Marsh & Rodriguez-Reinoso, 2006**). These characteristics confer an exceptionally high surface area and good absorbent properties can be exploited in different areas. The production of activated carbon is linked to the purification of products and environmental protection. To the extent that the demands of purity of products require more sophisticated processes and emissions standards become more stringent, the activated carbon evolves, the production of the classic styles granular and powder have been joined by other like fibers, fabrics, monoliths among others (**Blanco et al., 2000**). Forms of activated carbon that are known and marketed, recent studies have shown that the monoliths exhibit characteristics that differentiate them from conventional ways, including the following highlights: allow the passage of gases with a very drop small, have a high geometric surface per unit weight / volume, the gas flow is very uniform, with easy handling, resistance to friction, reduce the constraints generated by phenomena of internal diffusion and mass transfer, these properties the have become used as support materials or adsorbents that

successful mainly in catalysis, adsorption and gas separation.

favor direct adsorption process in the gas phase (**Nakagawa et al., 2007**).

**1. Introduction**

