Recovery of the Petro ashes by applying CO2 fixation methods

Abstract

Globally, carbon dioxide (CO₂) emissions that are the result of human activities are generally considered to be the causative factor of the greenhouse effect. For this reason, many researchers have been studying methods to reduce CO₂ emissions. However, its reduction methods had weak points. First CO₂ absorption such as CCS (Carbon capture and storage) is high energy consumption process. Also, separated CO₂ needs to enough storage area. In addition, stored CO₂ is not stability. For example, CO₂ could re-emit into atmosphere by earthquake etc. So we suggested to CO₂ fixation methods for reusing or storing a stable. In general, petro ashes are including the Ca²⁺ ions (5 -15%). We thought that Ca²⁺ ions could make a calcium carbonate by reacting with ionic CO₂. The purpose of this study was to propose a method of reusing CO₂ and petro ashes.