Gas Partial Oxidation (GasPOX)

Catalyst-free syngas generation

Air Liquide GasPOx process is a mature and well-referenced method for producing syngas, oxogas, or pure hydrogen. Unlike catalytic reforming methods, GasPOX does not utilize a catalyst, setting it apart as a highly robust solution by eliminating the need for complex feed treatment enabling utilization of versatile gaseous hydrocarbons.

Superior burner technology

Air Liquide’s Gas-POx features a proprietary media cooled burner located on the top of the Gas-POx reactor. The burner is designed to convert  the feed gas stream with oxygen supported by burner cooling steam ensuring a stable flame and extended  burner run times covering industrial plant turn-around cycles . The non-catalytic partial oxidation is carried out at high temperatures up to 1450°C.

Feedstock versatility and scale

GasPOx technology is strongly favored when dealing with heavy feedstocks containing unsaturated hydrocarbons, because the high thermal energy of GasPOx instantly cracks them. Such feedstocks in an SMR or ATR necessitates a costly upstream hydrogenation and prereforming section to prevent rapid coking and poisoning of the reforming catalyst, adding considerable complexity and capital expenditure. On the other hand, feedstocks with high concentrations of sulfur are readily tolerated in GasPOx. These sulfur compounds can subsequently be managed downstream (for example, sour shift catalysts).

Air Liquide’s GasPOx technology offers exceptional performance and cost advantages, which is proven in Air Liquide’s 11 operational GasPOx references. The system is well-suited for high syngas capacities from 500 Nm3/h up to 250,000 Nm3/h per reactor.

Integrated CO₂ recycling for decarbonization

One key technical advantage of GasPOx is its ability to provide a wide range of  H₂:CO ratios in the syngas product matching downstream syngas consumer requirements. The H₂:CO ratio can be further enhanced by recycling CO₂ generated in the process or integrating external CO₂ sources. With this the GasPOx can become a  CO₂ sink and a true low carbon syngas provider.