Synthesis gas production

Details Synthesis gas production Synthesis gas production

C - Chemistry, Metallurgy

01

B

C01B 3/36 (2006.01) C01B 3/02 (2006.01) C01B 3/34 (2006.01) C01B 3/38 (2006.01) C07C 29/15 (2006.01) C07C 29/151 (2006.01)

Patent

CA 2073526

ABSTRACT H 36447 SYNTHESIS GAS PRODUCTION 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.

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