Heat and Mass Transfer in Reduction Zone of Sponge Iron Reactor

Table 3

Comparison between reference data and simulation.

Flow	Note	Plant data	Simulation results
			Reduction zone	Isobaric zone
(1)	Reduction gas in the bottom of reduction zone
	Temperature (K)	1193	1193
	CH4 (% vol.)		2.9
	H2 (% vol.)		42.1
	CO (% vol.)		9.58
	CO2 (% vol.)		2.26
	N2 (% vol.)		3.72
	H2O (% vol.)		1.36
(2)	Reduction gas inlet
	Temperature (K)	1203
	CH4 (% vol.)	3.7
	H2 (% vol.)	71.86
	CO (% vol.)	16.5
	CO2 (% vol.)	3.8
	N2 (% vol.)	1.8
	H2O (% vol.)	2.34
(3)	Leaking gas from isobaric zone
	Temperature (K)			1139
	CH4 (% vol.)			50.13
	H2 (% vol.)			45.63
	CO (% vol.)			0.983
	CO2 (% vol.)			3.03
	N2 (% vol.)			1.14
	H2O (% vol.)			0.12
(4)	Reduction gas wastes
	Temperature (K)	657.5	657.5
	CO2 (% vol.)	9.0	8.5
	CH4 (% vol.)	4.4	4.5
	CO (% vol.)	12.1	11.7
	H2O (% vol.)	23.4	23.9
	N2 (% vol.)	12	1.7
	H2 (% vol.)	49.7	49.5