/ Adsorbent for Capturing Carbon Dioxide Comprising Eutectic Mixture Promoter and Magnesium Oxide/Aluminium Oxide Composite and Method for Manufacturing Same

摘要

The present invention relates to a magnesium oxide-based absorbent for collecting carbon dioxide and a method of preparing the same. More specifically, the present invention relates to a magnesium oxide-based absorbent for collecting carbon dioxide, which includes a eutectic mixture as an enhancer and a magnesium oxide/aluminum oxide complex, thereby having excellent cycle ability. According to the present invention, a problem of an existing magnesium oxide-based absorbent for collecting carbon dioxide, which exhibits excellent carbon dioxide adsorption performance at high temperature but a poor cycle performance, and subsequently, cannot be commercialized or used in the process is overcome. Thus, it is possible to provide the solid absorbent having remarkably improved cycle characteristics and the CO_2 adsorption performance that is not significantly lower than that of the existing technology. According to the magnesium oxide-based absorbent for collecting carbon dioxide including a magnesium oxide/aluminum oxide complex of the present invention, the structural change of the magnesium oxide is inhibited during repeated cycles of adsorption and regeneration, and the magnesium oxide-based absorbent has significantly improved cycle performance. Thus, the magnesium oxide-based absorbent can be effectively commercialized and used in a process in various industries.