Hethe integration ofCOG methanation inin ironmaking with oxy-fuel combustion and TGR
Hethe integration ofCOG methanation inin ironmaking with oxy-fuel combustion and TGR (Case 2). four. Block diagram of of integration of COG methanation ironmaking with oxy-fuel combustion and TGR (Case two).three. In summary, in terms of developed gas utilization, Case 1 recycled BFG towards the methanaMethodologytor and also the modelling assumptions common for the analyses of Cases 0 plant concepts in- and SNG for the BF, while Case 2 recycled each BFG and COG for the methanator cluded steady-state situations, best gases, and adiabatic reactions. Further case-specific SNG towards the BF.assumptions are documented in Section three.1. The modelling methodology is based on general mass balance (Olesoxime web Equation (3)) and en3. Methodology ergy balance (Equation (four)) in steady state, applied to every single equipment in Case 0, Case 1, The modelling assumptions popular for the analyses of Situations 0 plant concepts and Case 2 plant layouts (Figures two).included steady-state circumstances, best gases, and adiabatic reactions. Further case-specific assumptions are documented in 0 = Section three.1. – (3) The modelling methodology is based on general mass balance (Equation (3)) and power balance (Equation (4)) in steady state, applied to every single equipment in Case 0, Case 1, 0 = – + – (four) and Case 2 plant layouts (Figures 2).exactly where m is definitely the mass flow, h the distinct enthalpy, W the network, and Q the net heat trans0 = (5), where fer. Enthalpy may be written as Equation mi – mo will be the enthalpy of formation at the reference temperature and is the temperature-dependent precise heat.(3) (four)0 = Q – W + mi hi – m o h o= +, where m could be the mass flow, h the specific enthalpy, W the network, and Q the net heat (5) transfer. Enthalpy may be written as Equation (5), exactly where f h Tre f is the enthalpy of formation in the When required, data is the literature had been employed. The specific assumptions for the reference temperature and cfromthe temperature-dependent certain heat. psubsystems (ironmaking, energy plant, and power-to-gas) are described in the following subsections. T T 3.1. Iron and Steel Planth i = f h ire f+Tre fc p,i dT(5)For When Case 0, inside the ironmaking procedure (BF), as an alternative of fixingspecific assumptionsof the vital, data in the literature were made use of. The the input mass flows for iron ore (Stream 1, Figure 2), coal (Stream 11, Figure two), and hot blast (Stream 20, Figure 2), subsystems (ironmaking, power plant, and power-to-gas) are described in the following we calculated them from the mass balance by assuming a final composition in the steel and subsections. the BFG, taken from [17] and [3], Ziritaxestat In stock respectively. The mass fraction of iron was set at 96 in pig iron and 99.7 in steel, with carbon because the remaining component (other components such as3.1. Iron and Steel PlantFor Case 0, inside the ironmaking course of action (BF), instead of fixing the input mass flows of iron ore (Stream 1, Figure 2), coal (Stream 11, Figure 2), and hot blast (Stream 20, Figure two), we calculated them in the mass balance by assuming a final composition of your steel and the BFG, taken from [17] and [3], respectively. The mass fraction of iron was set at 96 inEnergies 2021, 14,7 ofpig iron and 99.7 in steel, with carbon as the remaining element (other components like Si or Mn have been neglected) [17]. The mole fraction of the BFG was fixed as outlined by information from [3] in Table 1. The mass flows in the pig iron (Stream 31, Figure two), BFG (Stream 26, Figure two), and slag (Stream 27, Figure two) had been also calculated in the BF’s mass and ene.