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Table 1

Elementary reactions and corresponding kinetic parameters used in this work

Steps(i)Elementary reationsn (kg·s−1), k (s−1·Pa−1)or KReferences
MgO + H2O → Mg(OH)2 k1 = 4.5167 × 1010 Rollason & Plane (2001)  
Mg(OH)2⇌Mg2+ + 2OH K2 = 4.8318 × 109 HSC6.0 
 n3 = 3.2097 × 107 × (61.3272 − c) Calculated by authors 
MgO + CO2 + H2O → Mg(HCO3)2 k4 = 1.1630 Smithson & Bakhshi (1973)  
Mg(OH)2 + CO2 → Mg(HCO3)2 k5 = 1.1630 Smithson & Bakhshi (1973)  
H2O⇌H+ + OH K6 = 0.2508488 Perry et al. (1984)  
H2O + CO2(aq)⇌H+ +  K7 = 4.786009566 × 107 HSC6.0 
+ H+ K8 = 7.57313428 × 1011 HSC6.0 
OH + CO2(aq) →  k9 = 152,230 Pohorecki & Moniuk (1988)  
10  + CO2 + H2k10 = 1.362628711 Zhao & Zhu (2007)  
11 H2O + + OH K11 = 3.5 × 1011 HSC6.0 
12 Ca2+ + → CaCO3 k12 = 6,126.1306 He et al. (2008)  
13 CaCO3⇌Ca2+ +  K13 = 3,360.0 Perry et al. (1984)  
Steps(i)Elementary reationsn (kg·s−1), k (s−1·Pa−1)or KReferences
MgO + H2O → Mg(OH)2 k1 = 4.5167 × 1010 Rollason & Plane (2001)  
Mg(OH)2⇌Mg2+ + 2OH K2 = 4.8318 × 109 HSC6.0 
 n3 = 3.2097 × 107 × (61.3272 − c) Calculated by authors 
MgO + CO2 + H2O → Mg(HCO3)2 k4 = 1.1630 Smithson & Bakhshi (1973)  
Mg(OH)2 + CO2 → Mg(HCO3)2 k5 = 1.1630 Smithson & Bakhshi (1973)  
H2O⇌H+ + OH K6 = 0.2508488 Perry et al. (1984)  
H2O + CO2(aq)⇌H+ +  K7 = 4.786009566 × 107 HSC6.0 
+ H+ K8 = 7.57313428 × 1011 HSC6.0 
OH + CO2(aq) →  k9 = 152,230 Pohorecki & Moniuk (1988)  
10  + CO2 + H2k10 = 1.362628711 Zhao & Zhu (2007)  
11 H2O + + OH K11 = 3.5 × 1011 HSC6.0 
12 Ca2+ + → CaCO3 k12 = 6,126.1306 He et al. (2008)  
13 CaCO3⇌Ca2+ +  K13 = 3,360.0 Perry et al. (1984)  

n: mass transfer flux per unit time; c: concentration of CO2 in liquid phase, kg·m−3.

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