The Study of Influence of Ammonium Salts Additive on Efficiency of Ca2+ Extraction in Inorganic Carbonation Using Two forms of Ready Mixed Concrete (RMC) and MEA

Abstract

Since industrial revolution occurred, Global warming has been one of the main global issues. CO₂ has the greatest contribution to deepening global warming. As a result, the world needs efficient CO₂ reduction technologies. One of the most famous CO₂ mitigation technologies was carbon capture and storage (CCS). However, CCS has some weaknesses including local problems such as absence of adequate reservoirs, destruction of maritime ecosystem, economical problems including plenty of additional energy used stripping section and etc. For this reasons, carbon capture and utilization (CCU) in which CO₂ was captured and reused as useful products is rising as promising CO₂ mitigation technology. In this study, we dealt with inorganic carbonation included in foresaid CCU. Inorganic carbonation in which metal cations react with captured CO₂ produced useful inorganic carbonates such as calcium carbonate. Monoethanolamine (MEA) is used as absorbent, ‘Ready Mixed Concrete (RMC)’, generally called REMICON, recycling water was selected as calcium ion source and the ammonium salts are used as additives.