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Gas POX - Natural Gas Partial Oxidation

Gas POX - Natural Gas Partial Oxidation

Syngas generation through partial oxidation

Gas POX - Natural Gas Partial Oxidation is a process for generating syngas and oxogas through the partial oxidation of a hydrocarbon feed in a refractory-lined reactor. The ratio of hydrogen and carbon monoxide in the syngas can be tailored to clients' needs through the use of additional processes.

From natural gas to syngas

Gas Partial Oxidation from Air Liquide Engineering & Construction uses desulfurized natural gas or refinery offgas as its feedstock. The feed gas is initially mixed with steam and pre-heated in a fired heater. Oxygen, feed and steam are then fed via a proprietary burner to a refractory-lined reactor operating at 40 to 100 barg. This process causes the partial oxidation of the feed gas, producing a mixture of hydrogen (H2), carbon monoxide (CO) and carbon dioxide (CO2). The reformed gas is then cooled down, generating high-pressure steam, and the CO2 is removed in an amine wash unit.

The H2 / CO syngas product ratio can be modified according to customer’s needs by using a membrane, Pressure Swing Adsorption unit or a CO Cold Box. The same steps may be also used to generate pure CO and/or H2 as products.


  • Efficient and proven technology for generating syngas and oxogas
  • Syngas content ratio can be adjusted through further processing

Key figures

  • Capacity: up to 150 000 Normal cubic meters per hour (Nm3/h) syngas, dry
  • Feed+fuel: 1.1 Normal cubic meters (Nm3) Natural Gas / Nm3 CO