Effect of Magnetic Field on CO2 Injection for Carbonate Dissociation Without Catalyst and Additives

Abstract

Unutilized CO₂ can be utilized to decompose carbonates at low temperatures through the magnetic field effect so that it can reduce air CO₂ gas emissions. This study identifies the optimal parameters required in the carbonate dissociation reaction by considering volume, temperature, electric current, and pressure. Tests were conducted by monitoring hourly pressure and weight changes before and after CO₂ injection. The results showed that the optimal carbonate dissociation parameters were volume 50 ml, weight 50.01 g, electric current 15 A, and temperature 90^oC with an inlet pressure of 30 psi. Utilization of a magnetic field with a strength of 9 - 10 T resulted in a weight reduction of 8.3 g. The carbonate dissociation reaction under the influence of the magnetic field degraded the elemental levels of C (8%) and O (4%) and increased the elemental level of Ca (31%). CO₂ can effectively induce carbonate dissociation when in a magnetic field.