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Process for the production of synthesis gas from carbon-containing material and electrical energy

  • US 20070131909A1
  • Filed: 11/03/2006
  • Published: 06/14/2007
  • Est. Priority Date: 11/04/2005
  • Status: Abandoned Application
First Claim
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1. A process for the production of a synthesis gas (SG) that has an H2/CO ratio of between 1.9 and 2.3 starting from a carbon-containing material is relatively low in hydrogen;

  • water; and

    electrical energy, wherein;

    Electrolysis of the water is carried out to produce oxygen and, hydrogen, A flow (CF) that comprises at least the majority of carbon contained in the carbon-containing material is subjected to a partial oxidation (POX) with essentially pure oxygen produced by said electrolysis, At least a portion of the hydrogen that is produced by electrolysis is added to the flow (CF) upstream and/or downstream from the partial oxidation POX, in such an amount that the H2/CO ratio of the final synthesis gas (SG) is between 1.9 and 2.3, the process comprising, upstream from the POX, a drying stage (DRY) for drying said carbon-containing material, whereby the degree of drying during the drying stage is adjusted so that the electrolysis oxygen used in the POX stage and the added electrolysis hydrogen are in an O2/H2 molar ratio of between 0.45 and 0.55.

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