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The desired H2/CO ratio can be adjusted by conversion or H2/CO separation. Linde plants supply syngas with an H2/CO relationship of from 1.6 and a capacity of from 1,000 Nm³/h to over 100,000 Nm³/h.

Syngas is utilized in the production of oxo alcohols, methanol or synthetic fuel (Fischer-Tropsch products).

Process

The feedstocks natural gas, liquid gas and naphtha are generally converted by catalytic steam reforming to a raw synthesis gas consisting of hydrogen (H2) and carbon monoxide (CO). This is then further processed depending on the desired final products. In the case of pure hydrogen, the process includes such features as the catalytic conversion of the CO and a pressure swing adsorption unit, in which all impurities are removed in a single step.

Synthesis Gas Production with Steam Reforming


Heavy oil feedstock ranging from residual oil to asphalt as well as coal are partially combusted with oxygen in a non-catalytic partial oxidation to produce a raw gas, which is then further processed into saleable products. Here, such process steps as CO conversion, sour gas removal with a RECTISOL® wash and membrane separation of H2 and CO are used.

Synthesis Gas Production with Partial Oxidation


In plants for the purification of hydrogen and carbon monoxide both chemical and physical wash processes are used to remove the carbon dioxide, as well as low-temperature processes for product purification with a downstream pressure swing adsorption unit to produce high-purity hydrogen.

Reference 

Synthesis gas plant for Celanese, at Night, Oberhausen, Germany

Process:
Partial Oxidation, CO2 Wash, Membrane Separation, PSA

Feedstock:
Natural Gas

Capacity:

Oxogas60,000 Nm³/h
53.8 mmscfd
  
H228,000 Nm³/h
25.1 mmscfd

Scope:

Turnkey

Start-Up:
2003

Linde AG, Engineering Division

Dr.-Carl-von-Linde-Strasse 6-14
82049 Pullach
Germany

Phone +49.89.7445-3540
Fax     +49.89.7445-4979

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