Verfahren zur Herstellung von Synthesegasen durch partielle Oxidation

• Main Authors: GETTERT, HANS- . DR., 6800 MANNHEIM, SARNECKI, WILHELM. DR., 6703 LIMBURGERHOF, HENRICI, HANS J.. DR., 6800 MANNHEIM, ZIRKER, GUENTER. DR., 6700 LUDWIGSHAFEN, REICH, HANS HEINER. DR., 6700 LUDWIGSHAFEN
• Format: Patent
• Language: German
• Published: 18.01.1979
• Edition: 2
• Subjects: CARBURETTING AIR OR OTHER GASES; CHEMISTRY; COMPOUNDS THEREOF; CRACKING HYDROCARBON OILS; FUELS; INORGANIC CHEMISTRY; LUBRICANTS; METALLURGY; MINERAL WAXES; NON-METALLIC ELEMENTS; PEAT; PETROLEUM, GAS OR COKE INDUSTRIES; PRODUCTION OF LIQUID HYDROCARBON MIXTURES, e.g. BY DESTRUCTIVEHYDROGENATION, OLIGOMERISATION, POLYMERISATION; PRODUCTION OF PRODUCER GAS, WATER-GAS, SYNTHESIS GAS FROMSOLID CARBONACEOUS MATERIAL, OR MIXTURES CONTAINING THESE GASES; PURIFYING OR MODIFYING THE CHEMICAL COMPOSITION OF COMBUSTIBLEGASES CONTAINING CARBON MONOXIDE; RECOVERY OF HYDROCARBON OILS FROM OIL-SHALE, OIL-SAND, ORGASES; REFINING MIXTURES MAINLY CONSISTING OF HYDROCARBONS; REFORMING OF NAPHTHA; TECHNICAL GASES CONTAINING CARBON MONOXIDE

In the manufacture of synthesis gas containing CO and H2 by partially oxidizing hydrocarbons or coal with oxygen-containing gas in the presence of a temperature moderator in a non-packed, non-catalytic, synthesis gas reactor at an autothermal temperature of from 900 to 1700 DEG C and at a pressure of from 1 to 250 bars, then cooling the reaction product, separating off particulate carbon, removing acidic impurities and carrying out any further desired aftertreatment, difficulties have arisen over removal of hydrocyanic acid. The present invention removes hydrocyanic acid from the reaction product by treating it, after the step of separating off particulate carbon but before the step of removing acidic impurities, in a catalytic hydrogenation zone at from 100 to 250 DEG C and a pressure of from 1 to 250 bars.