Air-blown secondary reforming is well established, being commonly utilized for syngas production for ammonia plant. Use of air to produce FT syngas has also been suggested by several authors, but has not been commercially-deployed yet. Syntroleum Corporation in their offshore GTL process design, used air in the reforming step to produce syngas [5, 6]. Syntroleum and ARCO have demonstrated a GTL process that utilizes an air-blown ATR and moving bed Fischer-Tropsch reactor [7, 8]. Jess et al. [9] proposed a once-through GTL plant in which syngas is generated through partial oxidation of natural gas and air. Their proposed plant was successfully operated in a semi-technical scale