STEAM REFORMING DEVICE

PURPOSE:To effectively reform a hydrocarbon with steam through effective reuse of high-temp. heat of a reformed gas without use of any waste heat boiler, by effecting the steam reforming in a tubular space portion of a particular reaction tube and effecting CO conversion in an inner tube portion. CO...

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Bibliographische Detailangaben
Hauptverfasser:	MUKAI KIYOHISA, OOTA MASUO, SUZUKI TOSHINAO, MAEJIMA TETSUO, HIRABAYASHI TOSHIHIKO, SAKAI NAOKI
Format:	Patent
Sprache:	eng
Schlagworte:	CARBURETTING AIR OR OTHER GASES CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOIDCHEMISTRY CHEMISTRY CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION ORPROCESSING OF GOODS COMPOUNDS THEREOF CRACKING HYDROCARBON OILS FUELS GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS INORGANIC CHEMISTRY LUBRICANTS METALLURGY MINERAL WAXES NON-METALLIC ELEMENTS PEAT PERFORMING OPERATIONS PETROLEUM, GAS OR COKE INDUSTRIES PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL 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 RECOVERY OF HYDROCARBON OILS FROM OIL-SHALE, OIL-SAND, ORGASES REFINING MIXTURES MAINLY CONSISTING OF HYDROCARBONS REFORMING OF NAPHTHA TECHNICAL GASES CONTAINING CARBON MONOXIDE TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINSTCLIMATE CHANGE THEIR RELEVANT APPARATUS TRANSPORTING
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Beschreibung
Zusammenfassung:	PURPOSE:To effectively reform a hydrocarbon with steam through effective reuse of high-temp. heat of a reformed gas without use of any waste heat boiler, by effecting the steam reforming in a tubular space portion of a particular reaction tube and effecting CO conversion in an inner tube portion. CONSTITUTION:A steam reforming catalyst layer A is formed in a space portion 4 between an inner tube 1 and an outer tube 2 which cooperate with each other to form a double-tube structure and communicate with each other through a partitioning plate 3 which has a number of fine pores for transmission and which is provided at the opening portion located at the bottom of the inner tube 1, while a CO conversion catalyst layer B is formed in an inner space 5 of the inner tube 1, thereby forming a reaction tube 20. For example, three reaction tubes are provided within a heating oven of a steam reforming device. A raw material comprising a mixed gas comprised of a hydrocarbon and steam and having a temp. of 300-400 deg.C is fed through a conduit 21. The mixed gas comes down from the direction of an arrow 10 of each reaction tube through the catalyst layer A. At this time, the mixed gas is heat- exchanged with the heat of gas rising through the catalyst layer B and heat from the outer surface 2, thereby causing the mixed gas to be heated at about 800 deg.C. This is turn causes the mixed gas to be converted into a gas contg. H2, CO and CO2. The gas rises through the catalyst layer B to bring about a CO conversion reaction. The gas thus formed is led to the direction of an arrow 11 and discharged from a discharging port 23 through a gas collecting tube 22, to transfer it to the next step.