Recycling of Industrial Waste Gypsum Using Mineral Carbonation
نویسندگان
چکیده
Direct mineral carbonation (MC) is used to mitigate carbon dioxide (CO2) emissions. This method has the great advantages of reducing amount industrial residues and creating valuable materials by incorporating CO2. Waste gypsum, waste including flue gas desulfurization (FGD) gypsum (25.27–53.40 wt% CaO), phosphogypsum (30.50–39.06 CaO) can be for direct MC (conversion rate up 96%). Mineral converts into calcium carbonate (CaCO3), which recycled during desulfurization. Furthermore, ammonium sulfate ((NH4)2SO4), as a fertilizer, prepared by-product when reaction performed using ammonia (NH3) base. In this study, recent progress in kinetics preparation CaCO3 FGD with NH3 was investigated. Temperature, CO2 partial pressure, flow rate, concentration were reviewed factors affecting efficiency. The influencing polymorphs also summarized. A state-of-the-art bench-scale plant study proposed. addition, economic feasibility investigated based on analyze future applicability technology.
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ژورنال
عنوان ژورنال: Sustainability
سال: 2022
ISSN: ['2071-1050']
DOI: https://doi.org/10.3390/su14084436