Chapter 6

Liquid-Gas Contactors Material Properties for CO2 Capture in Absorption Column

Araceli Salazar, Rosa-Hilda Chavez and Javier de J. Guadarrama

Abstract

The purpose of this chapter is to discuss some structural characteristics and properties of three regular packing materials: metallic, polymeric and ceramic; in order to select the best one to capture CO<sub>2</sub> in an absorption column. The study was conducted by making the following tests: geometric physical properties such as wetted area and porosity; mechanical properties like, stress, hardness, modulus and compression resistance, structure and microstructure morphologic, chemical composition, rate of corrosion in electrochemical cell in medium of 1N of H<sub>2</sub>SO<sub>4</sub> and Monoethanolamine (MEA) at 30% in aqueous solution by using standard procedures of the American Society of Testing Materials (ASTM) and own developed procedures for the equipment used. The structures of materials were also evaluated by X-ray diffraction and the surface of the material by scanning electron microscopy. It was concluded that metallic material is suitable for CO<sub>2</sub> gas treatment because it was presented with the lower etching 1N of H<sub>2</sub>SO<sub>4</sub, and MEA at 30% in aqueous solution and giving the most absorption of CO<sub>2</sub>.

Total Pages: 147-177 (31)

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