Synthesis gas production

Details Synthesis gas production Synthesis gas production

1992-06-30

1993-10-12

Mars, Howard T.

Chemistry: fischer-tropsch processes; or purification or recover

With preliminary reaction to form hydrogen or a carbon oxide

Gaseous oxygen utilized in the preliminary reaction

518704, 252373, 423359, C07C 2706, C01B 3302, C01B 336

Patent

active

052526097

ABSTRACT:
Synthesis gas production comprising primary catalytic steam reforming a first stream of desulphurised hydrocarbon feedstock, optionally followed by secondary reforming using an oxygen-containing gas, and then cooling; adiabatically low temperature steam reforming a second stream of the feedstock, preferably adding a hydrogen-containing gas, and then subjecting the product to partial oxidation with an oxygen-containing gas, and then cooling; and mixing the cooled products.
For methanol production, the partial oxidation step pressure may be greater than the primary reforming pressure, and the hydrogen-containing gas is taken from the methanol synthesis loop: if the partial oxidation step is non-catalytic and in the absence of steam, the pre-reforming stage can be omitted. Methanol can be synthesised from the reformed first and/or second streams in an auxiliary synthesis stage at an intermediate pressure before the relevant stream is added to the synthesis loop.

REFERENCES:
patent: 4782096 (1988-11-01), Banquy
Van Den Berg, P. J. and De Jong, W. A.; "Ch. IV-Production of Ammonia From Natural Gas," Introduction to Chemical Process Technology, (1980: Delft University Press, Delft Holland); pp. 28-51.
European Search Report, EP 92 30 5784, Van Der Poel W., The Hauge, Dec. 3, 1992.

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