Abstract

Abstract Adsorption is considered as one of the most promising technologies for CCS. Gas adsorption involves the separation of gaseous components from flue gas using solid adsorbents. The gaseous component, adsorbate, is adsorbed from the gas phase on a solid material. Regarding CO2adsorption, it is important to consider the parameters, that is the high sorption capacity, CO2selectivity, regeneration and stability in multiple cycles. New directions for the development of adsorbents are focused on increasing their capacity - for this purpose, amine impregnation is carried out. This paper presents a new approach to obtaining mesoporous material from fly ash and, based on this, a new physico-chemical adsorbent obtained by impregnation. The effectiveness of the process was confirmed by thermogravimetric analysis and FTIR infrared spectroscopy.

Highlights

  • Nowadays, adsorption as a separation technique of CO2 is mainly used in postcombustion and oxy-combustion processes

  • The main purpose of this paper is to present the efficiency on modification with amine solid sorbents and to analyze CO2 removal by using TGA thermogravimetric analysis and FTIR infrared spectral analysis

  • Synthesis and testing of the physico-chemical adsorbents together with typical physical adsorbents were conducted

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Summary

Introduction

Adsorption as a separation technique of CO2 is mainly used in postcombustion and oxy-combustion processes. In the case of CO2 removal by adsorbents, it is important to gather information about the chemical composition, surface area, pore volume and pore size distribution, grain size and density distribution, and the sorption characteristics: sorption capacities, adsorption/desorption profiles, regeneration and lifecycle analysis. Comparison of the research results obtained by thermogravimetric analysis is not easy, due to the differences in conducting research by various scientific units. Those differences are mainly caused by different conditions of conducting tests in accepted research procedures using TGA. The main purpose of this paper is to present the efficiency on modification with amine solid sorbents and to analyze CO2 removal by using TGA thermogravimetric analysis and FTIR infrared spectral analysis. Effectiveness of impregnation was confirmed by TGA and FTIR studies

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