Current advances in syngas (CO + H2) production through bi-reforming of methane using various catalysts: A review

Today, bi - reforming of methane is considered as an emerging replacement for the generation high-grade synthesis gas (H2:CO = 2.0), and also encouraging renewable energy substitute fossil fuel resources. For achieving high conversion levels CH4, H2O, CO2 in this process, appropriate operation variables such pressure, temperature molar feed constitution are prerequisites yield gas. One biggest stumbling blocks reaction sudden deactivation catalysts, which attributed to sintering coke formation on active sites. Consequently, it worthwhile choose promising catalysts that demonstrate excellent stability, activity selectivity during production syngas. This review describes characterisation various used bi-reforming Ni-based with MgO, MgO–Al2O3, ZrO2, CeO2, SiO2 catalytic supports. In summary, addition a Ni/SBA-15 catalyst showed greater reactivity than nickel celites; however, both samples deactivated strongly stream. Ce-promoted were more found favourable Ni/MgAl2O4 alone due their inherent capability removing amorphous from surface. Also, Lanthanum promoted exhibited dispersion enhanced interaction between metal support. Furthermore, La2O3 was improve selectivity, activity, coking resistance Ni implanted within SiO2. Non-noble metal-based carbide be stable reactions. Interestingly, five-fold increase Al2O3 support observed incorporation Cr, Ba continuous time 140 h. Bi-reforming 200 h Ni-?Al2O3 98.3% CH4 around 82.4%. Addition MgO formed MgAl2O4 spinel phase at temperatures quite effective preventing enhancement basicity surface catalyst. Additionally, distribution perovskite oxides over 20 wt % silicon carbide-modified aluminium oxide supports activity. NdCOO3 candidates longer operations.