Synthesis gas production process for natural gas conversion over Ni–La2O3 catalyst

•Syngas production in the steam-CO2 reforming over Ni–La2O3 catalyst.•Kinetics model for SCR.•Effect of contact time (W/FCH4, gcat/gmethane/h), feed rate (CO2/CH4) on product yields.•SCR reactor design and GTL process. The synthesis gas (syngas) is a mixture of hydrogen and carbon monoxide, which is suitable as a feed gas to produce clean liquid synthetic fuel in natural gas conversion reactor. In order to achieve the efficiency reactor, the syngas composition should match the usage ratio of the reactors. In this work, we investigate the development of synthesis gas production process in the steam-CO2 reforming (SCR) over Ni–La2O3 catalyst supported Ce–ZrO2/Al2O3. And, we developed the kinetics model for SCR used by the profiles of concentration and temperature in the SCR reactor.