Table 1: The effect of reaction conditions on the iron-based catalyst performance.

Catalyst Type	Condition Reaction			Reference
	T [K]	P [MPa]	H2/CO Ratio
Iron based catalyst	493-523	0.79-2.96	0.67-1.06	(Zimmerman and Bukur,1990) [15]
	533-573	1.1-2.61	0.67-2.05	(Teng et al., 2006) [16]
	513–553	1.0 -2.85	0.4–1.0	(Hayakawa et al., 2007) [17]
	553-723	0.1-1.5	1-3	(Mirzaei et al., 2009) [18]
	513-573	1-3	1-5	(Tian et al., 2010) [19]
	543-573	0.61-2.2	1.5-2	(Atashi et al., 2011) [20]
	563-593	0.1-1	1-3	(Arsalanfar et al., 2012) [21]
	523–573	0.2-1	2	(Mirzaei et al., 2012) [22]
	538	0.5	0.25,1,4	(Ding et al., 2013) [23]
	553-653	1-2.1	0.1-1.2	(Fazlollahi et al., n.d.) [24]
	513–543	0.1–1.2	1, 1.5, 2	(Sarkari et al., 2014) [24]
	493-533	0.8-2.5	0.67-2	(Olewski et al., 2015) [25]
	493,513,533	0.8, 1.5, 2.25, 2.5	0.67, 2	(Todic et al., 2016) [26]
	543-613	0.12-0.7	0.5-2	(Golestan et al., 2017) [27]